This free material equivalents finder from HAGUE FASTENERS LIMITED cross-references stainless steels, duplex grades, alloy steels, nickel alloys, titanium and copper alloys across the EN, UNS, ASTM and AISI, British Standard and JIS systems. Enter a grade in any system, such as 1.4462, S31803, 316, B7, EN24 or Inconel 718, and the comparable grades appear as you type, with the bolting and forging grades used for fasteners.
Material equivalents finder
Equivalent grades are comparable, not identical. Chemical limits, mechanical properties, heat treatment and testing differ between standards. Always order and certify to the specification called up on the drawing or purchase order.
Guidance only. Results are approximate and for initial guidance. They are not a substitute for the governing standard, specification or drawing, or for testing. HAGUE FASTENERS LIMITED accepts no liability for decisions made using these tools. Always check critical values against the relevant standard. © 2026 HAGUE FASTENERS LIMITED.
How to use the material equivalents finder
- Type a material number, grade or name from any standard. Spaces, dots and hyphens do not matter, so 1.4462 and 14462 both work.
- Read the comparable EN, UNS, ASTM, British Standard and JIS designations, and the ASTM bolting and forging grades for fasteners.
- Follow the link to our material page for more on machining and supply.
Equivalent does not mean identical
Grades from different standards are comparable, not interchangeable. Chemical limits, mechanical properties, heat treatment, testing and certification all differ between standards. For example, duplex UNS S31803 and S32205 are both covered by EN 1.4462, but S32205 has tighter, higher limits for chromium, molybdenum and nitrogen. Always order and certify to the specification called up on the drawing or purchase order.
Frequently asked questions
What is the equivalent of 1.4462?
EN 1.4462 (X2CrNiMoN22-5-3) is duplex 2205. Its nearest UNS grades are S31803 and S32205, supplied as forgings to ASTM A182 F51 and F60, and the old British Standard grade is 318S13.
What is the equivalent of B7?
ASTM A193 B7 bolting is made from chromium-molybdenum steel of the 4140, 4142 or 4145 type, comparable to EN 1.7225 (42CrMo4) and BS 970 708M40 (EN19). B7 also has its own heat treatment, hardness and testing requirements, so always order to the B7 specification.
My grade is not listed. Can you help?
Yes. HAGUE FASTENERS LIMITED works with many more materials than are listed here, including special alloys to customer specifications. Ask us and our technical team will help.
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