At Ananka Fasteners Pvt Ltd, we manufacture and supply fasteners certified to ASTM A529/A529M. Standard specification for high-strength carbon-manganese steel of structural quality (plates, bars, shapes to 1/2 in / 2 in). Used for structural members and as bar/plate stock for fabricated fasteners and connection hardware.
Standard specification for high-strength carbon-manganese steel of structural quality (plates, bars, shapes to 1/2 in / 2 in). Used for structural members and as bar/plate stock for fabricated fasteners and connection hardware.
| Grade / Class | UNS / Designation | Type / Notes |
|---|---|---|
| Grade 50 | K02407 | 50 ksi yield C-Mn |
| Grade 55 | – | 55 ksi yield C-Mn |
Minimum mechanical requirements per ASTM A529/A529M.
| Grade / Class / Condition | Tensile Strength, min | Yield Strength, min | Elongation, min % | Hardness |
|---|---|---|---|---|
| Grade 50 | 70-100 ksi (485-690 MPa) | 50 ksi (345 MPa) | 21 (in 2 in) / 18 (in 8 in) | – |
| Grade 55 | 70-100 ksi (485-690 MPa) | 55 ksi (380 MPa) | 20 (in 2 in) / 17 (in 8 in) | – |
| Grade | Key Composition, % |
|---|---|
| Grade 50 | C 0.27 max, Mn 1.20 max, Cu 0.20 min (when specified) |
| Grade 55 | C 0.29 max, Mn 1.35 max, Cu 0.20 min (when specified) |
ASME/AASHTO comparable; overlaps A572 Gr 50 in yield but is a carbon-manganese (not HSLA microalloyed) chemistry; A992 for wide-flange shapes.
For the official ASTM International standards catalogue, see the ASTM International standards listing. This external reference is provided for standards identification; the purchaser should verify the current edition applicable to the order.
We supply ASTM A529/A529M fasteners — bolts, screws, studs, nuts and washers as applicable — for energy, petrochemical, marine, structural and general engineering service, in a full range of sizes and finishes.
For technical documentation and quotations, buyers can also review the Ananka Fasteners manufacturing and supply range or contact the team through the fastener enquiry and technical support page.
Ananka Fasteners supplies every lot with full material traceability and third-party testing on request.
Standard specification for high-strength carbon-manganese steel of structural quality (plates, bars, shapes to 1/2 in / 2 in). Used for structural members and as bar/plate stock for fabricated fasteners and connection hardware.
Ananka Fasteners supplies Grade 50, Grade 55 to ASTM A529/A529M. See the Grades / Classes Covered table above for full details of each grade.
Minimum tensile strength, yield strength, elongation and hardness requirements vary by grade — see the Mechanical Properties table above for the complete breakdown.
We supply ASTM A529/A529M fasteners — bolts, screws, studs, nuts and washers as applicable — for energy, petrochemical, marine, structural and general engineering service, in a full range of sizes and finishes.
Yes. For a quotation, provide the required fastener type, grade, nominal size, dimensional standard, quantity and any inspection or certificate requirements.
Need a fastener released to ASTM A529/A529M for an industrial project? Send the required fastener type, grade, size, quantity and certification requirements to Ananka Fasteners. Our team can review the requirement and provide technical and commercial information for standard or custom configurations.
Recommended RFQ details: ASTM A529/A529M requirement, material grade, fastener type, nominal size, dimensional standard, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Data compiled per ASTM A529/A529M and industry references; provided for reference only — confirm against the current edition of the standard and certified mill test reports before design use.
