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ASTM A681 D7 vs ASTM A387/A387M Grade 22L

Related Material — 65% match based on chemical composition and mechanical property overlap.

ASTM A681 D7 (ASTM A681:2008) and ASTM A387/A387M Grade 22L (ASTM A387/A387M:2011) are both steel grades. ASTM A681 D7 is classified under Tool & Die Steels, while ASTM A387/A387M Grade 22L is classified under Alloy Steel — a different category, which is worth noting alongside the chemistry match below. ASTM A681 D7 is typically used for tools, dies and fixtures (clause 1.2), while ASTM A387/A387M Grade 22L is commonly used for welded boilers and pressure vessels for elevated temperature service. ASTM A681 D7 is defined under ASTM International, originating from United States, while ASTM A387/A387M Grade 22L is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A681 D7 vs ASTM A387/A387M Grade 22L is a 68.6% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 65%.

Frequently Compared With ASTM A681 D7:
DIN EN ISO 4957 1.2379 GOST 5950 3H2W8F EN ISO 683-17 100Cr6 IS 1570 (Part 6) 118T3 GB/T 1299 3Cr2W8V EN ISO 4957 1.2316 DIN EN ISO 4957 1.2344 IS 1570 (Part 6) 103T3 IS 1570 (Part 6) 133T3 GB/T 1299 4Cr5MoSiV GB/T 1299 4Cr5MoSiV1 GOST 5950 4H5MFS
Match Breakdown
CHEMISTRY MATCH
68.6%
MECHANICAL MATCH
No shared data
OVERALL
65%
Specifications
Property ASTM A681 D7 ASTM A387/A387M Grade 22L
Standard ASTM A681:2008 ASTM A387/A387M:2011
Category Tool & Die Steels Alloy Steel
C (%) 2.15-2.50 <=0.10
Mn (%) 0.10-0.60 0.30-0.60
P (%) <=0.030 <=0.025
S (%) <=0.030 <=0.025
Si (%) 0.10-0.60 <=0.50
Cr (%) 11.50-13.50 2.00-2.50
V (%) 3.80-4.40 Not specified
Mo (%) 0.70-1.20 0.90-1.10
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 D7 ASTM A387/A387M Grade 22L
Hardness <=262 HB Not specified
Condition Annealed (maximum Brinell hardness) Class 1 plates, no thickness ranges printed; elongation in 50 mm gauge length
Tensile Strength Not specified 415-585 MPa
Yield Strength Not specified >=205 MPa
Elongation Not specified >=18%
Typical Applications
ASTM A681 D7
Tools, dies and fixtures (clause 1.2)
ASTM A387/A387M Grade 22L
Welded boilers and pressure vessels for elevated temperature service
Key Differences
Can ASTM A681 D7 Be Substituted With ASTM A387/A387M Grade 22L?
ASTM A681 D7 and ASTM A387/A387M Grade 22L 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 D7
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Frequently Asked Questions
What is the difference between ASTM A681 D7 and ASTM A387/A387M Grade 22L?
Different category: ASTM A681 D7 is Tool & Die Steels, ASTM A387/A387M Grade 22L is Alloy Steel. ASTM A681 D7 specifies V which is not specified for ASTM A387/A387M Grade 22L.
Can ASTM A681 D7 be substituted with ASTM A387/A387M Grade 22L?
ASTM A681 D7 and ASTM A387/A387M Grade 22L 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.