Material Selection8–10 min read
Cold-Rolled vs Hot-Rolled Steel: Tolerances, Stress and Machining
Compare the supplied product route and finish rather than assuming rolling alone defines the grade.
Author: Mat Grades Editorial DeskRead Guide →
ASTM A36 Structural Steel
Primary Designation:ASTM A36
Mat Grades internal verification confirms source-backed fidelity and data integrity. It does not constitute external certification or guaranteed lot conformity. Read engineering disclaimer →
Data Completeness:0 composition elements and 2 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.
Tensile Strength
399.9 – 551.6 MPaRANGE · Producer-stated plate requirements; heat treatment not stated · temperature not stated
Engineering Summary
ASTM A36 Structural 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.
ASTM A36 Structural 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 IdentifierScroll horizontally for full designation data
| System | Identifier | Standard System Name | Classification Notes & Provenance |
|---|---|---|---|
| ASTMPRIMARY | A36 | ASTM International | —Ref: ASTM A36 product page |
Applicable Specifications & Product Form ReferencesSPECIFICATION REFERENCE
2 Applicable StandardsScroll horizontally for full standard specifications
| Standards Body | Specification Code | Specification Title / Scope | Relationship Type |
|---|---|---|---|
| ASTM | ASTM A36 | Carbon Structural SteelPRODUCT_SPECIFICATION · Product form: Plate | Specification Reference |
| ASTM | ASTM A6 | General requirements referenced for tensile testingPRODUCT_SPECIFICATION · Product form: 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.
ASTM A36 Structural Steel 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.
Showing 1 of 1 conditions
Scroll horizontally for all conditions & tempers
| Product Form | Temper / Condition | Section Size | Tensile (UTS) | Yield Strength | Elongation | Shear Strength | Fatigue Strength | Hardness (Scales Preserved) | Status |
|---|---|---|---|---|---|---|---|---|---|
| Finished plate; excludes coil pending conversion and qualification | Producer-stated plate requirements; heat treatment not stated · TRANSVERSESource values and qualifiersYield Strength: ≥ 248.2 MPa (MINIMUM)Original imperial producer requirements retained; do not apply to unqualified coil. Test temperature not stated.ASTM A6 requirementsSSAB — Mechanical Properties table A36 row Tensile Strength: 399.9–551.6 MPa (RANGE)Original imperial producer requirements retained; do not apply to unqualified coil. Test temperature not stated.ASTM A6 requirementsSSAB — Mechanical Properties table A36 row | 2.54–152 mm | 399.9–551.6 MPa | ≥ 248.2 MPa | — | — | — | — | 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
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
For an A36 mounting plate, start with the stock form, flatness and cleanup allowance. The SSAB source describes finished plate, not a precision-machining bar condition. Its tensile requirements do not establish tool life, residual stress or the tolerance of a deeply pocketed part. Ask the shop to review the amount of material removal and inspect the component after unclamping. Compare the cost of preparation, machining and final finish rather than treating a low plate price as the complete manufacturing cost.
Weldability, brazing & joining
The producer page identifies transverse tensile testing under ASTM A6 requirements. It does not supply a qualified weld procedure or a universal preheat and interpass schedule. Give the fabricator the actual plate thickness, joint, restraint and acceptance requirement. The source also distinguishes coil awaiting conversion from qualified finished plate. A chemistry certificate for that coil is not evidence that the finished plate mechanical requirements have already been met; retain the correct supply and inspection documents.
Corrosion & service environment
Treat the corrosion protection as part of the assembly design. Specify surface preparation, coating, drainage and access for inspection. The two mechanical-property rows captured here do not establish corrosion life, impact toughness or a continuous service-temperature ceiling. A painted indoor bracket and an exposed structural connection can therefore need different approval evidence even when the same grade is proposed. Keep the installation environment with the drawing so that a move to washdown or outdoor service triggers a fresh review.
Selection trade-offs & applications
The source lists a minimum yield requirement of 36 ksi and a tensile range of 58–80 ksi for its stated plate scope; the catalog retains the imperial values and their unit conversion. Do not transfer those figures to a machined 1018 bar or claim a direct substitution from chemistry alone. For a fabricated support, compare the final dimensions, weld inspection and finish against the same load requirement. Request the ordered product specification, plate condition, applicable thickness range and certificate before release.
Technical references: SSAB: ASTM A36 product page
Related Engineering & Metallurgy Guides
Contextual technical guides explaining degradation mechanisms, testing methodologies, and selection criteria relevant to ASTM A36 Structural Steel.
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Sources
Sources & Provenance Trail: Authoritative reference publications, standards specifications, and data registers cited across this material record.
SSABASTM A36 product page
PRIMARY PRODUCER
Selected producer facts; retain stated limits and context. No direct cross-standard equivalence is asserted.
SSABASTM A36 product page
PRIMARY PRODUCER
Selected producer facts; retain stated limits and context. No direct cross-standard equivalence is asserted.
SSABASTM A36 product page
PRIMARY PRODUCER
Selected producer facts; retain stated limits and context. No direct cross-standard equivalence is asserted.
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.