Stainless Steel•Martensitic•
VERIFIED

Type 416 Stainless Steel

Primary Designation:UNS S41600

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:7 composition elements and 1 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
7.64 g/cm³TYPICAL · temperature not stated
Composition Excerpt
C ≤ 0.15 wt%Carbon (max)
Standard Elemental Basis: MAX

Engineering Summary

Type 416 Stainless Steel. Selected producer-scoped facts are provided below; missing values are not inferred.

Recognized Aliases

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

Type 416 Stainless Steel Specifications & Designations

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

Direct Standard DesignationsDIRECT DESIGNATION
1 Primary Identifier
Scroll horizontally for full designation data
SystemIdentifierStandard System NameClassification Notes & Provenance
UNSPRIMARYS41600Unified Numbering System—Ref: CarTech 416 Stainless (No. 5) datasheet
Applicable Specifications & Product Form ReferencesSPECIFICATION REFERENCE
1 Applicable Standards
Scroll horizontally for full standard specifications
Standards BodySpecification CodeSpecification Title / ScopeRelationship Type
ASTMASTM A582Free-Machining Stainless Steel BarsPRODUCT_SPECIFICATION · Product form: BarSpecification 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.

Type 416 Stainless Steel Chemical Composition

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

Scroll horizontally for full elemental limits
ElementSymbolAtomic No.Semantic BasisSpecified ValueUnitMetallurgical Notes & QualificationData Status
CarbonC0MAXIMUM≤ 0.15wt%Producer type analysis; individual limits retained, not a complete supply guarantee.Ref: Carpenter Technology CorporationVERIFIED
ManganeseMn0MAXIMUM≤ 1.25wt%Producer type analysis; individual limits retained, not a complete supply guarantee.Ref: Carpenter Technology CorporationVERIFIED
PhosphorusP0MAXIMUM≤ 0.06wt%Producer type analysis; individual limits retained, not a complete supply guarantee.Ref: Carpenter Technology CorporationVERIFIED
SulfurS0MINIMUM≥ 0.15wt%Producer type analysis; individual limits retained, not a complete supply guarantee.Ref: Carpenter Technology CorporationVERIFIED
SiliconSi0MAXIMUM≤ 1.00wt%Producer type analysis; individual limits retained, not a complete supply guarantee.Ref: Carpenter Technology CorporationVERIFIED
ChromiumCr0RANGE12.00 – 14.00wt%Producer type analysis; individual limits retained, not a complete supply guarantee.Ref: Carpenter Technology CorporationVERIFIED
IronFe0BALANCEBalancewt%Producer type analysis; individual limits retained, not a complete supply guarantee.Ref: Carpenter Technology CorporationVERIFIED
* 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:

Type 416 Stainless Steel Physical Properties

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

1 Parameters
Scroll horizontally for full property parameters
Property ParameterCanonical SI ValueSemantic BasisTest Temperature / Context RangeSource Raw ReferenceSource ReferenceStatus
Density7.64 g/cm³TYPICALProducer physical property; test temperature and product condition not stated.0.2760 lb/in³Carpenter Technology CorporationVERIFIED

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

Type 416 is a free-machining stainless candidate for parts whose shape is produced largely by cutting. The Carpenter source identifies sulfur as the machining addition. Use a representative shaft, threaded feature or valve-stem geometry in the trial rather than copying a cutting-speed recipe. Record chip control, tool changes, burr removal and final surface quality in the supplied condition. The captured density and chemistry do not establish a guaranteed machining cycle, hardness or final strength for the actual bar.

Weldability, brazing & joining

Carpenter does not recommend welding this product. If an assembly requires a routine welded joint, revisit the material choice before ordering the machined blank. A mechanical assembly may be a more appropriate starting point, subject to its own design requirements. Do not assume that a procedure used for 304, 410 or another stainless grade applies to 416. For any proposed repair, establish the permitted process and required requalification with the responsible engineer and supplier.

Corrosion & service environment

Check the actual atmosphere, fluid, deposits and cleaning route rather than treating stainless as a blanket corrosion approval. The producer notes that surface condition and metallurgical condition affect performance and recommends application-specific corrosion evaluation. A smoother, clean surface can be relevant, but cosmetic polishing does not establish suitability for a chloride exposure or pressure vessel. The captured composition includes sulfur as a minimum rather than a maximum; keep that distinction when comparing supplier documents or possible alternatives.

Selection trade-offs & applications

The selected source identifies UNS S41600 and references ASTM A582 for bar supply. Its density is cataloged as a typical physical value with no test temperature stated. No tensile or impact value has been invented for an unspecified heat treatment. For a machined fastener or shaft, specify the final condition, dimensions, corrosion requirement and acceptance tests before comparing 303 or 410. Include finishing and inspection in the quote, and keep the actual material certificate with the first-article approval rather than accepting only a familiar grade label.

Technical references: Carpenter Technology: CarTech 416 Stainless datasheet

Martensitic Steel Alloy Family

Corrosion-resistant stainless steels in the Martensitic metallurgical branch sharing equivalent matrix structures.

3 Adjacent Grades
S41600Current Grade
Type 416 Stainless Steel
410C: ≤0.15%
View Grade →
420C: undefined%
View Grade →

Related Engineering & Metallurgy Guides

Contextual technical guides explaining degradation mechanisms, testing methodologies, and selection criteria relevant to Type 416 Stainless Steel.

Corrosion & Surface Engineering16 min read

How to Polish Stainless Steel: Methods, Scratch Removal, Finishes & Grain Direction

Stainless steel owes its corrosion resistance to a microscopic, self-healing chromium oxide (Cr₂O₃) passive film. Polishing stainless steel is not merely cosmetic cleaning—it is a controlled mechanical abrasion process requiring strict adherence to grain direction, progressive abrasive refinement, and rigorous cross-contamination control to preserve surface integrity and corrosion performance.

Author: Mat Grades Editorial DeskRead Guide →

Sources

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

Carpenter Technology CorporationCarTech 416 Stainless (No. 5) datasheet
PRIMARY PRODUCER

Selected producer facts; retain stated limits and context. No direct cross-standard equivalence is asserted.

Issuing Body: Carpenter Technology CorporationRevision: Edition date 09/01/1986; copyright 2020View Source Record ↗
Carpenter Technology CorporationCarTech 416 Stainless (No. 5) datasheet
PRIMARY PRODUCER

Selected producer facts; retain stated limits and context. No direct cross-standard equivalence is asserted.

Issuing Body: Carpenter Technology CorporationRevision: Edition date 09/01/1986; copyright 2020View Source Record ↗
Carpenter Technology CorporationCarTech 416 Stainless (No. 5) datasheet
PRIMARY PRODUCER

Selected producer facts; retain stated limits and context. No direct cross-standard equivalence is asserted.

Issuing Body: Carpenter Technology CorporationRevision: Edition date 09/01/1986; copyright 2020View Source Record ↗
Carpenter Technology CorporationCarTech 416 Stainless (No. 5) datasheet
PRIMARY PRODUCER

Selected producer facts; retain stated limits and context. No direct cross-standard equivalence is asserted.

Issuing Body: Carpenter Technology CorporationRevision: Edition date 09/01/1986; copyright 2020View 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.