At Ananka Fasteners Pvt Ltd, we manufacture and supply fasteners certified to ASTM F2281. Standard specification for stainless steel and nickel alloy bolts, hex cap screws and studs for heat-resistance and high-temperature applications (service up to ~1800F/982C). Covers austenitic, martensitic, and precipitation-hardening/nickel-alloy fastener grades.
Standard specification for stainless steel and nickel alloy bolts, hex cap screws and studs for heat-resistance and high-temperature applications (service up to ~1800F/982C). Covers austenitic, martensitic, and precipitation-hardening/nickel-alloy fastener grades.
| Grade / Class | UNS / Designation | Type / Notes |
|---|---|---|
| 304 / 304L | UNS S30400 / S30403 | Type I A austenitic |
| 316 / 316L | UNS S31600 / S31603 | Type I A austenitic |
| 410 / 416 | UNS S41000 / S41600 | Type I B martensitic |
| 321 / 347 | UNS S32100 / S34700 | Type II stabilized austenitic |
| 330 | UNS N08330 | Type II heat-resistant |
| 600 / 601 | UNS N06600 / N06601 | Type III A nickel alloy |
| A-286 (660) | UNS S66286 | Type III B PH austenitic |
| 718 | UNS N07718 | Type III C PH nickel alloy |
Minimum mechanical requirements per ASTM F2281.
| Grade / Class / Condition | Tensile Strength, min | Yield Strength, min | Elongation, min % | Hardness |
|---|---|---|---|---|
| 304/316 (Type I A) | 75 ksi (515 MPa) | 30 ksi (205 MPa) | 30 | 65-95 HRB |
| 410/416 (Type I B) | 110 ksi (760 MPa) | 85 ksi (585 MPa) | 15 | 20-45 HRC |
| 321/347 (Type II) | 75 ksi (515 MPa) | 30 ksi (205 MPa) | 30 | 65-95 HRB |
| 600/601 (Type III A) | 80 ksi (550 MPa) | 25 ksi (170 MPa) | 35 | 65-85 HRB |
| 660 A-286 (Type III B) | 130 ksi (895 MPa) | 85 ksi (585 MPa) | 15 | 22-37 HRC |
| 718 (Type III C) | 180 ksi (1240 MPa) | 150 ksi (1035 MPa) | 12 | 36-48 HRC |
| Grade | Key Composition, % |
|---|---|
| 304 | Cr 18-20, Ni 8-10.5, C <=0.08, Fe bal |
| 316 | Cr 16-18, Ni 10-14, Mo 2-3, C <=0.08 |
| 660 A-286 | Fe bal, Ni 24-27, Cr 13.5-16, Ti 1.9-2.35, Mo 1-1.5 |
| 718 | Ni 50-55, Cr 17-21, Nb 4.75-5.5, Mo 2.8-3.3, Fe bal |
Complements ASTM A193 (B8 class), F593; ISO 3506 (austenitic); AMS grades for 660/718
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 F2281 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 stainless steel and nickel alloy bolts, hex cap screws and studs for heat-resistance and high-temperature applications (service up to ~1800F/982C). Covers austenitic, martensitic, and precipitation-hardening/nickel-alloy fastener grades.
Ananka Fasteners supplies 304 / 304L, 316 / 316L, 410 / 416, 321 / 347, 330, 600 / 601, A-286 (660), 718 to ASTM F2281. 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 F2281 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 F2281 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 F2281 requirement, material grade, fastener type, nominal size, dimensional standard, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Data compiled per ASTM F2281 and industry references; provided for reference only — confirm against the current edition of the standard and certified mill test reports before design use.
