VERIFIED(Source-Verified)

C46400 Naval Brass

Primary Designation:UNS C46400

Aliases:

Naval BrassTin Brass 464C46400

Mat Grades internal verification confirms source-backed fidelity and data integrity. It does not constitute external certification or guaranteed lot conformity. Read engineering disclaimer →

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Data Completeness:5 composition elements and 141 condition-specific property values cataloged.

Omitted fields represent unverified properties. "Missing is better than invented."

Key Engineering Properties

Representative source rows, qualified by their reported conditions. Inspect the tables below for all values, limits, and source notes.

Density

8.415 g/cm³TYPICAL · at 20 °C

Electrical Conductivity

26 % IACSTYPICAL · at 20 °C

Thermal Conductivity

115.96 W/(m·K)TYPICAL · at 20 °C

Specific Heat Capacity

376.8 J/(kg·K)TYPICAL · at 20 °C

Melting Range (Solidus / Liquidus)

887.8 – 898.9 °C1630.0 – 1650.0 °F

Solidus: 887.8°C | Liquidus: 898.9°C

Composition Excerpt

Cu 59–62 wt%Copper (range)

Standard Elemental Basis: RANGE

Engineering Summary

UNS C46400 Naval Brass (59.0-62.0% Cu, 0.50-1.0% Sn, Zn Remainder) is a corrosion-resistant wrought brass where tin addition inhibits dezincification in seawater. Widely specified for marine propeller shafting, turnbuckles, marine hardware, and heat exchanger tubesheets.

C46400 Naval Brass Documented Applications

›Aircraft Turn buckle Barrels: Forming Characteristics
›Aircraft Turn buckle Barrels: Friction & Wear Properties
›Aircraft Turn buckle Barrels: Mechanical Properties
›Balls: Conductivity (Thermal)
›Balls: Corrosion Resistance
›Balls: Forming Characteristics
›Balls: Friction & Wear Properties
›Balls: Mechanical Properties
›Bearings: Adhesion Characteristics
›Bearings: Corrosion Resistance
›Bearings: Friction & Wear Properties
›Bearings: Machining Characteristics

Recognized Aliases

Source-backed commercial trade name and short designations cataloged in canonical data.

Naval BrassTin Brass 464C46400

C46400 Naval Brass Specifications & Designations

Standard Designations & Applicable Specifications — Semantically classified designations distinguishing primary standard identifiers, commercial trade names, and applicable specification references.

Direct Standard DesignationsDIRECT DESIGNATION

2 Primary Identifiers

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System	Identifier	Standard System Name	Classification Notes & Provenance
UNSPRIMARY	C46400	Unified Numbering System	Unified Numbering System standard designation for copper alloys (CDA / SAE / ASTM)Ref: CDA UNS Standard Designations Register (C46400)
CDA	Alloy 464	Copper Development Association Alloy Number	CDA three-digit legacy designationRef: CDA UNS Standard Designations Register (C46400)

Recognized Commercial Aliases & Trade NamesCOMMON ALIAS

3 Listed

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Recognized Name / Alias	Classification	Technical Usage & Context
Naval Brass	Standard Commercial Name	CDA Standard Commercial Name
Tin Brass 464	Commercial Alias	Colloquial or commercial industry synonym
C46400	Commercial Alias	Colloquial or commercial industry synonym

Applicable Specifications & Product Form ReferencesSPECIFICATION REFERENCE

12 Applicable Standards

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Standards Body	Specification Code	Specification Title / Scope	Relationship Type
SAE	SAE J461	WROUGHT AND CAST COPPER ALLOYS	Specification Reference
SAE	SAE J463	WROUGHT COPPER AND COPPER ALLOYS	Specification Reference
AMS	AMS 4612	BRASS BARS AND RODS, NAVAL, HARD TEMPER	Specification Reference
ASTM	ASTM B124/B124M	COPPER AND COPPER-ALLOY FORGING ROD, BAR AND SHAPES	Specification Reference
AMS	AMS 4611	BRASS BARS AND RODS, NAVAL, HALF-HARD	Specification Reference
FEDERAL	FEDERAL QQ-B-639	BRASS, NAVAL, FLAT PRODUCTS (PLATE, BAR, SHEET AND STRIP)	Specification Reference
ASTM	ASTM B21/B21M	NAVAL BRASS ROD, BAR AND SHAPES	Specification Reference
ASTM	ASTM F468	NONFERROUS BOLTS, HEX CAP SCREWS, AND STUDS FOR GENERAL USE	Specification Reference
ASTM	ASTM B283/B283M	COPPER AND COPPER ALLOY DIE FORGINGS (HOT PRESSED)	Specification Reference
ASME	ASME SB283	COPPER AND COPPER ALLOY DIE FORGINGS (HOT PRESSED)	Specification Reference
ASTM	ASTM F467	NONFERROUS NUTS FOR GENERAL USE	Specification Reference
ASTM	ASTM B432	COPPER AND COPPER ALLOY CLAD STEEL PLATE	Specification Reference

Engineering Notice: Applicable specifications establish manufacturing requirements, dimensional tolerances, and test criteria for specific product forms (e.g. bus bar, wire, plate, pipe). They represent applicable technical standards, not alternative or equivalent alloy grades.

C46400 Naval Brass Chemical Composition

Chemical Composition (Weight %) — Elemental limits and values from the cited source. Preserves exact semantic limits (minimums, maximums, and ranges).

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Element	Symbol	Atomic No.	Semantic Basis	Specified Value	Unit	Metallurgical Notes & Qualification	Data Status
Copper	Cu	29	RANGE	59.00 – 62.00	wt%	CDA chemical composition specification limits for C46400: 59.0 - 62.0 wt%.Ref: Copper Development Association (CDA)	VERIFIED
Lead	Pb	82	MAXIMUM	≤ 0.20	wt%	CDA chemical composition specification limits for C46400: max 0.2 wt%.Ref: Copper Development Association (CDA)	VERIFIED
Tin	Sn	50	RANGE	0.50 – 1.00	wt%	CDA chemical composition specification limits for C46400: 0.5 - 1.0 wt%.Ref: Copper Development Association (CDA)	VERIFIED
Zinc	Zn	30	BALANCE	Balance	wt%	Remainder element (Zinc).Ref: Copper Development Association (CDA)	VERIFIED
Iron	Fe	26	MAXIMUM	≤ 0.10	wt%	CDA chemical composition specification limits for C46400: max 0.1 wt%.Ref: Copper Development Association (CDA)	VERIFIED

* Elemental percentages are expressed in weight percent (wt%). Values represent applicable specification limits. Unspecified trace elements are not fabricated or assumed.Preserves exact semantic basis

Property Display UnitsSwitch between Canonical SI and Source / US Customary units:

C46400 Naval Brass Physical Properties

Source-specific physical properties. Test temperatures are shown only where reported.

1 Parameters

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Property Parameter	Canonical SI Value	Semantic Basis	Test Temperature / Context Range	Source Raw Reference	Source Reference	Status
Density	8.415 g/cm³	TYPICAL	Test Temp: 20 °CCDA Physical Properties: Density 0.304 lb/cu in. at 68°F (8.415 g/cm³ at 20°C)	0.304 lb/cu in. at 68°F	Copper Development Association Inc.	VERIFIED

C46400 Naval Brass Thermal & Thermodynamic Properties

Phase change temperatures, thermal conductivity, specific heat, mean coefficients of thermal expansion across standardized temperature ranges, and recommended thermal processing windows.

7 Parameters

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Property Parameter	Canonical SI Value	Semantic Basis	Test Temperature / Context Range	Source Raw Reference	Source Reference	Status
Liquidus Temperature	898.9 °C	TYPICAL	CDA Physical Properties: Liquidus temperature 1650.0 °F (898.9 °C)	1650.0 °F	Copper Development Association Inc.	VERIFIED
Solidus Temperature	887.8 °C	TYPICAL	CDA Physical Properties: Solidus temperature 1630.0 °F (887.8 °C)	1630.0 °F	Copper Development Association Inc.	VERIFIED
Thermal Conductivity	115.96 W/(m·K)	TYPICAL	Test Temp: 20 °CCDA Physical Properties: Thermal conductivity 67.0 Btu/(ft·hr·°F) (115.96 W/(m·K) at 20°C)	67.0 Btu/ sq ft/ ft hr/ °F at 68°F	Copper Development Association Inc.	VERIFIED
Coefficient of Thermal Expansion (CTE)	21.24 µm/(m·K)	TYPICAL	CDA Physical Properties: CTE 11.8 µin/(in·°F) (21.24 µm/(m·K)) over range 68-57210°F	11.8 10^-6 per °F	Copper Development Association Inc.	VERIFIED
Specific Heat Capacity	376.8 J/(kg·K)	TYPICAL	Test Temp: 20 °CCDA Physical Properties: Specific heat 0.09 Btu/(lb·°F) (376.8 J/(kg·K))	0.09 Btu/ lb /°F at 68°F	Copper Development Association Inc.	VERIFIED
Annealing Temperature Range	426.7 – 593.3 °C	RANGE	CDA Thermal Treatments: Annealing temperature range 800 - 1100°F (426.7 - 593.3°C)	800 – 1100 °F	Copper Development Association Inc.	VERIFIED
Hot Working Temperature Range	648.9 – 815.6 °C	RANGE	CDA Thermal Treatments: Hot working range 1200 - 1500°F (648.9 - 815.6°C)	1200 – 1500 °F	Copper Development Association Inc.	VERIFIED

C46400 Naval Brass Electrical Properties

Electrical conductivity and resistivity in their reported units and conditions.

1 Parameters

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Property Parameter	Canonical SI Value	Semantic Basis	Test Temperature / Context Range	Source Raw Reference	Source Reference	Status
Electrical Conductivity	26 % IACS	TYPICAL	Test Temp: 20 °CCDA Physical Properties: Volume conductivity 26.0 % IACS at 68°F (20°C)	26.0 % IACS at 68°F	Copper Development Association Inc.	VERIFIED

C46400 Naval Brass Mechanical Properties

Contextual Mechanical Properties & Tempers: Engineering strength, ductility, and hardness values grouped by product form, temper, and section thickness. Mechanical properties are contextual and not isotropic averages.

Elastic & Baseline Mechanical ConstantsSource-specific measurement conditions

Modulus of Elasticity (Tension)

103.4 GPa

CDA Physical Properties: Elastic modulus in tension 15000.0 ksi (103.4 GPa)

Modulus of Rigidity

38610.6 MPa

CDA Physical Properties: Shear modulus 5600.0 ksi (38610.6 MPa)

Machinability Rating

30 %

CDA Fabrication Properties: Rating relative to Free-Cutting Brass (C36000 = 100%).

Forgeability Rating

90 —

CDA Fabrication Properties: Relative forgeability rating.

Product Form:

Temper / Condition:

Showing 47 of 47 conditions

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Product Form	Temper / Condition	Section Size	Tensile (UTS)	Yield Strength	Elongation	Shear Strength	Fatigue Strength	Hardness (Scales Preserved)	Status
Flat Products	1/4 Hard (H01) · 20 °C Source values and qualifiers Tensile Strength: 482.6 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Elongation: 17 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — H01	0.04	482.6 MPa	—	17 %	—	—	—	VERIFIED
Flat Products	1/4 Hard (H01) Source values and qualifiers Rockwell B Hardness: 75 HRB (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 68 HR30T (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Shear Strength: 296.5 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — H01	0.04	—	—	—	296.5 MPa	—	75 HRB68 HR30T	VERIFIED
Flat Products	As Hot Rolled (M20) · 20 °C Source values and qualifiers Tensile Strength: 379.2 MPa (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 172.4 MPa (TYPICAL)Section Size: 1; Section Size: 1 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 50 % (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — M20	1	379.2 MPa	172.4 MPa	50 %	—	—	—	VERIFIED
Flat Products	As Hot Rolled (M20) Source values and qualifiers Rockwell B Hardness: 55 HRB (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — Rockwell 30T Hardness: 55 HR30T (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — Shear Strength: 275.8 MPa (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — M20	1	—	—	—	275.8 MPa	—	55 HRB55 HR30T	VERIFIED
Flat Products	Light Anneal (O50) · 20 °C Source values and qualifiers Tensile Strength: 413.7 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 193.1 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 45 % (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — O50	0.25	413.7 MPa	193.1 MPa	45 %	—	—	—	VERIFIED
Flat Products	Light Anneal (O50) Source values and qualifiers Rockwell B Hardness: 58 HRB (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Rockwell 30T Hardness: 56 HR30T (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Shear Strength: 282.7 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — O50	0.25	—	—	—	282.7 MPa	—	58 HRB56 HR30T	VERIFIED
Flat Products	Light Anneal (O50) · 20 °C Source values and qualifiers Tensile Strength: 427.5 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 206.8 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 40 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — O50	0.04	427.5 MPa	206.8 MPa	40 %	—	—	—	VERIFIED
Flat Products	Light Anneal (O50) Source values and qualifiers Rockwell B Hardness: 60 HRB (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 57 HR30T (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Shear Strength: 282.7 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — O50	0.04	—	—	—	282.7 MPa	—	60 HRB57 HR30T	VERIFIED
Flat Products	Soft Anneal (O60) · 20 °C Source values and qualifiers Tensile Strength: 399.9 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 172.4 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 49 % (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — O60	0.25	399.9 MPa	172.4 MPa	49 %	—	—	—	VERIFIED
Flat Products	Soft Anneal (O60) Source values and qualifiers Rockwell B Hardness: 56 HRB (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Rockwell 30T Hardness: 55 HR30T (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Shear Strength: 275.8 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — O60	0.25	—	—	—	275.8 MPa	—	56 HRB55 HR30T	VERIFIED
Flat Products & Rod	Soft Anneal (O60) · 20 °C Source values and qualifiers Tensile Strength: 399.9 MPa (TYPICAL)Section Size: 0.24; Section Size: 0.24 inCopper Development Association (CDA) — Elongation: 49 % (TYPICAL)Section Size: 0.24; Section Size: 0.24 inCopper Development Association (CDA) — Tensile Strength: 399.9 MPa (TYPICAL)Section Size: 0.24; Section Size: 0.24 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 186.2 MPa (TYPICAL)Section Size: 0.24; Section Size: 0.24 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 45 % (TYPICAL)Section Size: 0.24; Section Size: 0.24 inCopper Development Association (CDA) — O60	0.24	399.9 MPa	186.2 MPa	45 %	—	—	—	VERIFIED
Flat Products & Rod	Soft Anneal (O60) · 20 °C Source values and qualifiers Tensile Strength: 386.1 MPa (TYPICAL)Section Size: 2; Section Size: 2 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 172.4 MPa (TYPICAL)Section Size: 2; Section Size: 2 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 47 % (TYPICAL)Section Size: 2; Section Size: 2 inCopper Development Association (CDA) — O60	2	386.1 MPa	172.4 MPa	47 %	—	—	—	VERIFIED
Flat Products & Rod	Soft Anneal (O60) · 20 °C Source values and qualifiers Tensile Strength: 393 MPa (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 172.4 MPa (TYPICAL)Section Size: 1; Section Size: 1 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 47 % (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — O60	1	393 MPa	172.4 MPa	47 %	—	—	—	VERIFIED
Flat Products, Rod & Bar	1/4 Hard (H01) · 20 °C Source values and qualifiers Tensile Strength: 475.7 MPa (TYPICAL)Section Size: 1; Cold Work: 8%; Section Size: 1 inCopper Development Association (CDA) — Elongation: 27 % (TYPICAL)Section Size: 1; Cold Work: 8%; Section Size: 1 inCopper Development Association (CDA) — H01	1	475.7 MPa	—	27 %	—	—	—	VERIFIED
Flat Products, Rod & Bar	1/4 Hard (H01) · 20 °C Source values and qualifiers Tensile Strength: 461.9 MPa (TYPICAL)Section Size: 2; Cold Work: 8%; Section Size: 2 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 275.8 MPa (TYPICAL)Section Size: 2; Cold Work: 8%; Section Size: 2 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 35 % (TYPICAL)Section Size: 2; Cold Work: 8%; Section Size: 2 inCopper Development Association (CDA) — H01	2	461.9 MPa	275.8 MPa	35 %	—	—	—	VERIFIED
Flat Products, Rod & Bar	1/4 Hard (H01) · 20 °C Source values and qualifiers Tensile Strength: 482.6 MPa (TYPICAL)Section Size: 0.24; Cold Work: 10%; Section Size: 0.24 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 330.9 MPa (TYPICAL)Section Size: 0.24; Cold Work: 10%; Section Size: 0.24 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 25 % (TYPICAL)Section Size: 0.24; Cold Work: 10%; Section Size: 0.24 inCopper Development Association (CDA) — H01	0.24	482.6 MPa	330.9 MPa	25 %	—	—	—	VERIFIED
Flat Products, Rod & Bar	1/4 Hard (H01) · 20 °C Source values and qualifiers Tensile Strength: 482.6 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 399.9 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 17 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — H01	0.04	482.6 MPa	399.9 MPa	17 %	—	—	—	VERIFIED
Flat Products, Rod & Bar	Light Anneal (O50) · 20 °C Source values and qualifiers Tensile Strength: 427.5 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 206.8 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 40 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — O50	0.04	427.5 MPa	206.8 MPa	40 %	—	—	—	VERIFIED
Flat Products, Rod & Bar	Light Anneal (O50) · 20 °C Source values and qualifiers Tensile Strength: 434.4 MPa (TYPICAL)Section Size: 0.24; Section Size: 0.24 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 206.8 MPa (TYPICAL)Section Size: 0.24; Section Size: 0.24 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 40 % (TYPICAL)Section Size: 0.24; Section Size: 0.24 inCopper Development Association (CDA) — Tensile Strength: 413.7 MPa (TYPICAL)Section Size: 0.24; Section Size: 0.24 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 193.1 MPa (TYPICAL)Section Size: 0.24; Section Size: 0.24 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 45 % (TYPICAL)Section Size: 0.24; Section Size: 0.24 inCopper Development Association (CDA) — O50	0.24	413.7 MPa	193.1 MPa	45 %	—	—	—	VERIFIED
Flat Products, Rod & Bar	Light Anneal (O50) · 20 °C Source values and qualifiers Tensile Strength: 427.5 MPa (TYPICAL)Section Size: 2; Section Size: 2 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 193.1 MPa (TYPICAL)Section Size: 2; Section Size: 2 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 43 % (TYPICAL)Section Size: 2; Section Size: 2 inCopper Development Association (CDA) — O50	2	427.5 MPa	193.1 MPa	43 %	—	—	—	VERIFIED
Flat Products, Rod & Bar	Light Anneal (O50) · 20 °C Source values and qualifiers Tensile Strength: 434.4 MPa (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 206.8 MPa (TYPICAL)Section Size: 1; Section Size: 1 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 40 % (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — O50	1	434.4 MPa	206.8 MPa	40 %	—	—	—	VERIFIED
Rod	1/2 Hard (H02) · 20 °C Source values and qualifiers Tensile Strength: 517.1 MPa (TYPICAL)Section Size: 1; Cold Work: 20%; Section Size: 1 inCopper Development Association (CDA) — Elongation: 20 % (TYPICAL)Section Size: 1; Cold Work: 20%; Section Size: 1 inCopper Development Association (CDA) — H02	1	517.1 MPa	—	20 %	—	—	—	VERIFIED
Rod	1/2 Hard (H02) Source values and qualifiers Rockwell B Hardness: 82 HRB (TYPICAL)Section Size: 1; Cold Work: 20%; Section Size: 1 inCopper Development Association (CDA) — Shear Strength: 303.4 MPa (TYPICAL)Section Size: 1; Cold Work: 20%; Section Size: 1 inCopper Development Association (CDA) — H02	1	—	—	—	303.4 MPa	—	82 HRB	VERIFIED
Rod	1/2 Hard (H02) · 20 °C Source values and qualifiers Tensile Strength: 551.6 MPa (TYPICAL)Section Size: 0.25; Cold Work: 20%; Section Size: 0.25 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 393 MPa (TYPICAL)Section Size: 0.25; Cold Work: 20%; Section Size: 0.25 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 20 % (TYPICAL)Section Size: 0.25; Cold Work: 20%; Section Size: 0.25 inCopper Development Association (CDA) — H02	0.25	551.6 MPa	393 MPa	20 %	—	—	—	VERIFIED
Rod	1/2 Hard (H02) Source values and qualifiers Rockwell B Hardness: 85 HRB (TYPICAL)Section Size: 0.25; Cold Work: 20%; Section Size: 0.25 inCopper Development Association (CDA) — Shear Strength: 310.3 MPa (TYPICAL)Section Size: 0.25; Cold Work: 20%; Section Size: 0.25 inCopper Development Association (CDA) — H02	0.25	—	—	—	310.3 MPa	—	85 HRB	VERIFIED
Rod	1/4 Hard (H01) · 20 °C Source values and qualifiers Tensile Strength: 482.6 MPa (TYPICAL)Section Size: 0.25; Cold Work: 10%; Section Size: 0.25 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 330.9 MPa (TYPICAL)Section Size: 0.25; Cold Work: 10%; Section Size: 0.25 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 25 % (TYPICAL)Section Size: 0.25; Cold Work: 10%; Section Size: 0.25 inCopper Development Association (CDA) — H01	0.25	482.6 MPa	330.9 MPa	25 %	—	—	—	VERIFIED
Rod	1/4 Hard (H01) Source values and qualifiers Rockwell B Hardness: 80 HRB (TYPICAL)Section Size: 0.25; Cold Work: 10%; Section Size: 0.25 inCopper Development Association (CDA) — Shear Strength: 296.5 MPa (TYPICAL)Section Size: 0.25; Cold Work: 10%; Section Size: 0.25 inCopper Development Association (CDA) — H01	0.25	—	—	—	296.5 MPa	—	80 HRB	VERIFIED
Rod	1/4 Hard (H01) · 20 °C Source values and qualifiers Tensile Strength: 475.7 MPa (TYPICAL)Section Size: 1; Cold Work: 8%; Section Size: 1 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 317.2 MPa (TYPICAL)Section Size: 1; Cold Work: 8%; Section Size: 1 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 27 % (TYPICAL)Section Size: 1; Cold Work: 8%; Section Size: 1 inCopper Development Association (CDA) — H01	1	475.7 MPa	317.2 MPa	27 %	—	—	—	VERIFIED
Rod	1/4 Hard (H01) Source values and qualifiers Rockwell B Hardness: 78 HRB (TYPICAL)Section Size: 1; Cold Work: 8%; Section Size: 1 inCopper Development Association (CDA) — Shear Strength: 296.5 MPa (TYPICAL)Section Size: 1; Cold Work: 8%; Section Size: 1 inCopper Development Association (CDA) — H01	1	—	—	—	296.5 MPa	—	78 HRB	VERIFIED
Rod	1/4 Hard (H01) · 20 °C Source values and qualifiers Tensile Strength: 461.9 MPa (TYPICAL)Section Size: 2; Cold Work: 8%; Section Size: 2 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 275.8 MPa (TYPICAL)Section Size: 2; Cold Work: 8%; Section Size: 2 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 35 % (TYPICAL)Section Size: 2; Cold Work: 8%; Section Size: 2 inCopper Development Association (CDA) — H01	2	461.9 MPa	275.8 MPa	35 %	—	—	—	VERIFIED
Rod	1/4 Hard (H01) Source values and qualifiers Rockwell B Hardness: 75 HRB (TYPICAL)Section Size: 2; Cold Work: 8%; Section Size: 2 inCopper Development Association (CDA) — Shear Strength: 296.5 MPa (TYPICAL)Section Size: 2; Cold Work: 8%; Section Size: 2 inCopper Development Association (CDA) — H01	2	—	—	—	296.5 MPa	—	75 HRB	VERIFIED
Rod	Light Anneal (O50) · 20 °C Source values and qualifiers Tensile Strength: 434.4 MPa (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 206.8 MPa (TYPICAL)Section Size: 1; Section Size: 1 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 40 % (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — O50	1	434.4 MPa	206.8 MPa	40 %	—	—	—	VERIFIED
Rod	Light Anneal (O50) Source values and qualifiers Rockwell B Hardness: 60 HRB (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — Shear Strength: 289.6 MPa (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — O50	1	—	—	—	289.6 MPa	—	60 HRB	VERIFIED
Rod	Light Anneal (O50) · 20 °C Source values and qualifiers Tensile Strength: 427.5 MPa (TYPICAL)Section Size: 2; Section Size: 2 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 193.1 MPa (TYPICAL)Section Size: 2; Section Size: 2 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 43 % (TYPICAL)Section Size: 2; Section Size: 2 inCopper Development Association (CDA) — O50	2	427.5 MPa	193.1 MPa	43 %	—	—	—	VERIFIED
Rod	Light Anneal (O50) Source values and qualifiers Rockwell B Hardness: 60 HRB (TYPICAL)Section Size: 2; Section Size: 2 inCopper Development Association (CDA) — Shear Strength: 289.6 MPa (TYPICAL)Section Size: 2; Section Size: 2 inCopper Development Association (CDA) — O50	2	—	—	—	289.6 MPa	—	60 HRB	VERIFIED
Rod	Light Anneal (O50) · 20 °C Source values and qualifiers Tensile Strength: 434.4 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 206.8 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 40 % (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — O50	0.25	434.4 MPa	206.8 MPa	40 %	—	—	—	VERIFIED
Rod	Light Anneal (O50) Source values and qualifiers Rockwell B Hardness: 60 HRB (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Shear Strength: 289.6 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — O50	0.25	—	—	—	289.6 MPa	—	60 HRB	VERIFIED
Rod	Soft Anneal (O60) · 20 °C Source values and qualifiers Tensile Strength: 399.9 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 186.2 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 45 % (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — O60	0.25	399.9 MPa	186.2 MPa	45 %	—	—	—	VERIFIED
Rod	Soft Anneal (O60) Source values and qualifiers Rockwell B Hardness: 56 HRB (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Shear Strength: 275.8 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — O60	0.25	—	—	—	275.8 MPa	—	56 HRB	VERIFIED
Rod	Soft Anneal (O60) · 20 °C Source values and qualifiers Tensile Strength: 386.1 MPa (TYPICAL)Section Size: 2; Section Size: 2 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 172.4 MPa (TYPICAL)Section Size: 2; Section Size: 2 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 47 % (TYPICAL)Section Size: 2; Section Size: 2 inCopper Development Association (CDA) — O60	2	386.1 MPa	172.4 MPa	47 %	—	—	—	VERIFIED
Rod	Soft Anneal (O60) Source values and qualifiers Rockwell B Hardness: 55 HRB (TYPICAL)Section Size: 2; Section Size: 2 inCopper Development Association (CDA) — Shear Strength: 275.8 MPa (TYPICAL)Section Size: 2; Section Size: 2 inCopper Development Association (CDA) — O60	2	—	—	—	275.8 MPa	—	55 HRB	VERIFIED
Rod	Soft Anneal (O60) · 20 °C Source values and qualifiers Tensile Strength: 393 MPa (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 172.4 MPa (TYPICAL)Section Size: 1; Section Size: 1 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 47 % (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — O60	1	393 MPa	172.4 MPa	47 %	—	—	—	VERIFIED
Rod	Soft Anneal (O60) Source values and qualifiers Rockwell B Hardness: 55 HRB (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — Shear Strength: 275.8 MPa (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — O60	1	—	—	—	275.8 MPa	—	55 HRB	VERIFIED
Rod & Bar	1/2 Hard (H02) · 20 °C Source values and qualifiers Tensile Strength: 517.1 MPa (TYPICAL)Section Size: 1; Cold Work: 20%; Section Size: 1 inCopper Development Association (CDA) — Elongation: 20 % (TYPICAL)Section Size: 1; Cold Work: 20%; Section Size: 1 inCopper Development Association (CDA) — H02	1	517.1 MPa	—	20 %	—	—	—	VERIFIED
Rod & Bar	1/2 Hard (H02) · 20 °C Source values and qualifiers Tensile Strength: 551.6 MPa (TYPICAL)Section Size: 0.24; Cold Work: 20%; Section Size: 0.24 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 393 MPa (TYPICAL)Section Size: 0.24; Cold Work: 20%; Section Size: 0.24 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 20 % (TYPICAL)Section Size: 0.24; Cold Work: 20%; Section Size: 0.24 inCopper Development Association (CDA) — H02	0.24	551.6 MPa	393 MPa	20 %	—	—	—	VERIFIED
Tube	Hard Drawn (H80) · 20 °C Source values and qualifiers Tensile Strength: 606.7 MPa (TYPICAL)Cold Work: 35%Copper Development Association (CDA) — Elongation: 18 % (TYPICAL)Cold Work: 35%Copper Development Association (CDA) — H80	—	606.7 MPa	—	18 %	—	—	—	VERIFIED
Tube	Hard Drawn (H80) Source values and qualifiers Rockwell B Hardness: 95 HRB (TYPICAL)Cold Work: 35%Copper Development Association (CDA) — H80	—	—	—	—	—	—	95 HRB	VERIFIED

Hardness Integrity Notice: Rockwell B (HRB), Rockwell F (HRF), and Superficial 30T (HR30T) scales are reported on their measured scales without cross-scale mathematical conversion.

Source: See fact-level citations

C46400 Naval Brass Processing & Fabrication

Machining, joining, forming, and thermal processing ratings cataloged from the cited authoritative technical reference.

Source: Copper Development Association (CDA)

Machinability

Machinability rating: 30% relative to free-cutting brass (C36000 = 100%). Forgeability rating: 90.

Weldability & Joining

Soldering: Excellent; Brazing: Excellent; Oxyacetylene Welding: Good; Gas Shielded Arc Welding: Fair; Coated Metal Arc Welding: Not Recommended; Spot Weld: Good; Seam Weld: Fair; Butt Weld: Good

Heat Treatment & Working Ranges

Annealing temperature range: 426.7°C to 593.3°C (800°F - 1100°F). Hot working temperature range: 648.9°C to 815.6°C (1200°F - 1500°F).

Forming & Cold Working

Capacity for Being Cold Worked: Fair. Capacity for Being Hot Formed: Excellent.

Practical Engineering & Fabrication Notes

By Mat Grades Editorial Desk · Updated 2026-11-14. Use alongside the specified product standard and supplier certificate.

Machining & shop-floor behavior

The cataloged machining note for C46400 Naval Brass states: Machinability rating: 30% relative to free-cutting brass (C36000 = 100%). Forgeability rating: 90. A relevant hardness example is Rockwell B Hardness: 75 HRB (typical; 1/4 Hard (H01), H01, Flat Products, 0.04). Use that supplied condition for a trial of the difficult feature. Record tool changes, burr removal, unclamped dimensions and accepted parts per hour. Relative machinability ratings from different reference scales should not be compared as if they were one common test.

Weldability, brazing & joining

The available joining assessment states: Soldering: Excellent; Brazing: Excellent; Oxyacetylene Welding: Good; Gas Shielded Arc Welding: Fair; Coated Metal Arc Welding: Not Recommended; Spot Weld: Good; Seam Weld: Fair; Butt Weld: Good The first cataloged strength example is Tensile Strength: 482.6 MPa (typical; 1/4 Hard (H01), H01, Flat Products, 0.04; test temperature 20 °C). Assess the final part after joining or thermal processing. Include distortion, cleanup and inspection in the quotation. A material designation or favorable process rating is a starting point for qualification, not evidence that an untested joint meets the drawing.

Corrosion & service environment

Review the working fluid, cleaning agents and dissimilar-metal contacts as separate exposures. The word copper, brass or bronze is too broad to establish compatibility. A process rating does not qualify a pressure boundary, and a thermal-property measurement does not establish a continuous service-temperature limit. The recorded thermal example is Thermal Conductivity: 115.96 W/(m·K) (typical; ; test temperature 20 °C). State the exposure and inspection access in the design record so that a change of installation or cleaning method triggers a review. The selected composition entries are Cu 59–62 wt%, Pb maximum 0.2 wt%, Sn 0.5–1 wt%. Chemistry documents identity; it does not establish fluid compatibility.

Selection trade-offs & applications

Use UNS C46400, COMMERCIAL Naval Brass, CDA Alloy 464 to identify the candidate, then specify the product form and delivered condition separately. The catalog lists Aircraft Turn buckle Barrels: Forming Characteristics as an application example. The related candidate C36000 Free-Cutting Brass is linked for comparison; its commonly compared relationship must be checked before substitution. Compare the complete route through machining, joining, finish and inspection. Keep the certificate, required test location and acceptance criteria with the first-article record. A later change of grade, condition or source should be assessed against that same requirement.

Technical references: Copper Development Association (CDA); Copper Development Association (CDA)

C46400 Naval Brass Equivalent & Comparable Grades

Comparable Grades & Cross-References: Carefully classified cross-reference relationships for C46400 Naval Brass. Comparable does not mean equivalent.

Scroll horizontally for relationship classifications & comparisons

Related Material	Family	Relationship Classification	Metallurgical Notes & Differences	Status	Action
C36000 Free-Cutting Brass	Copper Alloys	Commonly Compared	C46400 Naval Brass includes 0.5-1.0% tin to inhibit seawater dezincification, whereas C36000 contains ~3% lead for 100% machinability.Materials serve different design priorities (e.g. higher strength vs superior corrosion resistance or cost).	VERIFIED
C28000 Muntz Metal 60/40	Copper Alloys	Nearest Alternative	C46400 is tin-inhibited Muntz metal formulated for seawater resistance, whereas C28000 is uninhibited binary 60/40 brass.Design parameters (weldability, hardenability, fatigue limit) must be re-evaluated for the specific application.	VERIFIED

Related Engineering & Metallurgy Guides

Contextual technical guides explaining degradation mechanisms, testing methodologies, and selection criteria relevant to C46400 Naval Brass.

Corrosion & Surface Engineering8–10 min read

Choosing Corrosion-Resistant Alloys for Marine Hardware

Saltwater hardware needs a review of crevices, flow, load and maintenance as well as alloy chemistry.

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Sources

Sources & Provenance Trail: Authoritative reference publications, standards specifications, and data registers cited across this material record.

Copper Development Association Inc.CDA Alloy C46400 Property & Specification Profile

AUTHORITATIVE BODY

Copper Development Association authoritative technical reference profile for C46400 Naval Brass.

Issuing Body: Copper Development Association (CDA)View Source Record ↗

Copper Development Association Inc.CDA UNS Standard Designations Register (C46400)

AUTHORITATIVE BODY

Unified Numbering System (UNS) designation registration register confirming active C46400 status.

Issuing Body: Copper Development Association (CDA)View Source Record ↗

Intellectual Property & Provenance Notice: Mat Grades cites technical literature from recognized industry associations and standards organizations. Underlying technical standards and publication data remain the intellectual property of their respective issuing organizations.