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ASTM A681 A2 vs ASTM A681 A6

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

ASTM A681 A2 (ASTM A681:2008) and ASTM A681 A6 (ASTM A681:2008) are both steel grades. Both fall under the Tool & Die Steels category. ASTM A681 A2 is typically used for tools, dies and fixtures (clause 1.2), while ASTM A681 A6 is commonly used for tools, dies and fixtures (clause 1.2). ASTM A681 A2 is defined under ASTM International, originating from United States, while ASTM A681 A6 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A681 A2 vs ASTM A681 A6 is a 71.2% match. As per mechanical properties, the match is 100%. Combined, this makes them a related material overall at 69.9%.

Frequently Compared With ASTM A681 A2:
GOST 5950 4H5MFS1 DIN EN ISO 4957 1.2344 GOST 5950 3H2W8F GB/T 1299 4Cr5MoSiV1 EN ISO 4957 1.2316 IS 1570 (Part 6) 103T3 IS 1570 (Part 6) 133T3 GB/T 1299 4Cr5MoSiV GOST 5950 4H5MFS DIN EN ISO 4957 1.2379 IS 1570 (Part 6) 118T3 GB/T 1299 3Cr2W8V
Match Breakdown
CHEMISTRY MATCH
71.2%
MECHANICAL MATCH
100%
OVERALL
69.9%
Specifications
Property ASTM A681 A2 ASTM A681 A6
Standard ASTM A681:2008 ASTM A681:2008
Category Tool & Die Steels Tool & Die Steels
C (%) 0.95-1.05 0.65-0.75
Mn (%) 0.40-1.00 1.80-2.50
P (%) <=0.030 <=0.030
S (%) <=0.030 <=0.030
Si (%) 0.10-0.50 0.10-0.70
Cr (%) 4.75-5.50 0.90-1.40
V (%) 0.15-0.50 Not specified
Mo (%) 0.90-1.40 0.90-1.40
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A681 A2 ASTM A681 A6
Hardness <=248 HB <=248 HB
Condition Annealed (maximum Brinell hardness) Annealed (maximum Brinell hardness)
Typical Applications
ASTM A681 A2
Tools, dies and fixtures (clause 1.2)
ASTM A681 A6
Tools, dies and fixtures (clause 1.2)
Key Differences
Can ASTM A681 A2 Be Substituted With ASTM A681 A6?
ASTM A681 A2 and ASTM A681 A6 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
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ASTM A681 A2
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Frequently Asked Questions
What is the difference between ASTM A681 A2 and ASTM A681 A6?
ASTM A681 A2 specifies V which is not specified for ASTM A681 A6.
Can ASTM A681 A2 be substituted with ASTM A681 A6?
ASTM A681 A2 and ASTM A681 A6 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.