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GB/T 3077 25Cr2Mo1V vs ASTM A681 A5

Related Material — 62.3% match based on chemical composition and mechanical property overlap.

GB/T 3077 25Cr2Mo1V (GB/T 3077:2015) and ASTM A681 A5 (ASTM A681:2008) are both steel grades. GB/T 3077 25Cr2Mo1V is classified under Alloy Steel, while ASTM A681 A5 is classified under Tool & Die Steels — a different category, which is worth noting alongside the chemistry match below. GB/T 3077 25Cr2Mo1V is typically used for hot-rolled or forged structural alloy steel bars, while ASTM A681 A5 is commonly used for tools, dies and fixtures (clause 1.2). GB/T 3077 25Cr2Mo1V is defined under Guobiao Standards (GB/T), originating from China, while ASTM A681 A5 is defined under ASTM International, originating from United States.

As per chemical composition, GB/T 3077 25Cr2Mo1V vs ASTM A681 A5 is a 62.3% 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 62.3%.

Frequently Compared With GB/T 3077 25Cr2Mo1V:
IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H EN 10028-2 10CrMo9-10 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H IS 4367 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6
Match Breakdown
CHEMISTRY MATCH
62.3%
MECHANICAL MATCH
No shared data
OVERALL
62.3%
Specifications
Property GB/T 3077 25Cr2Mo1V ASTM A681 A5
Standard GB/T 3077:2015 ASTM A681:2008
Category Alloy Steel Tool & Die Steels
C (%) 0.22-0.29 0.95-1.05
Si (%) 0.17-0.37 0.10-0.70
Mn (%) 0.50-0.80 2.80-3.20
Cr (%) 2.10-2.50 0.90-1.40
Mo (%) 0.90-1.10 0.90-1.40
V (%) 0.30-0.50 Not specified
P (%) <=0.030 <=0.030
S (%) <=0.030 <=0.030
Cu (%) <=0.30 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property GB/T 3077 25Cr2Mo1V ASTM A681 A5
Tensile Strength >=735 MPa Not specified
Yield Strength >=590 MPa Not specified
Elongation >=16% Not specified
Hardness <=241 HB Not specified
Condition Quenched and tempered, test sample 25 mm; hardness is for bars delivered annealed or high temperature tempered Not specified
Typical Applications
GB/T 3077 25Cr2Mo1V
Hot-rolled or forged structural alloy steel bars
ASTM A681 A5
Tools, dies and fixtures (clause 1.2)
Key Differences
Can GB/T 3077 25Cr2Mo1V Be Substituted With ASTM A681 A5?
GB/T 3077 25Cr2Mo1V and ASTM A681 A5 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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GB/T 3077 25Cr2Mo1V
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ASTM A681 A5
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Frequently Asked Questions
What is the difference between GB/T 3077 25Cr2Mo1V and ASTM A681 A5?
Different category: GB/T 3077 25Cr2Mo1V is Alloy Steel, ASTM A681 A5 is Tool & Die Steels. GB/T 3077 25Cr2Mo1V specifies V, Cu which are not specified for ASTM A681 A5.
Can GB/T 3077 25Cr2Mo1V be substituted with ASTM A681 A5?
GB/T 3077 25Cr2Mo1V and ASTM A681 A5 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.