Related Material — 65% match
based on chemical composition and mechanical property overlap.
ASTM A681 P2 (ASTM A681:2008) and BS 970 EN36C (BS 970:1955) are both steel grades.
ASTM A681 P2 is classified under Tool & Die Steels, while BS 970 EN36C is classified under Alloy Steel — a different category, which is worth noting alongside the chemistry match below.
ASTM A681 P2 is typically used for injection mould cavities, die casting dies for zinc, while BS 970 EN36C is commonly used for used for gears, camshafts, pinions, heavy-duty shafts, aerospace transmission parts, and worm drives..
ASTM A681 P2 is defined under ASTM International, originating from United States, while BS 970 EN36C is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, ASTM A681 P2 vs BS 970 EN36C is a 67.2% 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%.
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 P2
BS 970 EN36C
Hardness
<=100 HB
Not specified
Condition
Annealed (maximum Brinell hardness)
Core, after heat treatment (lowest-strength condition of the standard)
Tensile Strength
Not specified
≥1004 MPa (65 tons/sq in, converted)
Elongation
Not specified
≥13%
Typical Applications
ASTM A681 P2
Injection mould cavities, die casting dies for zinc
BS 970 EN36C
Used for gears, camshafts, pinions, heavy-duty shafts, aerospace transmission parts, and worm drives.
Key Differences
Different category: ASTM A681 P2 is Tool & Die Steels, BS 970 EN36C is Alloy Steel.
Can ASTM A681 P2 Be Substituted With BS 970 EN36C?
ASTM A681 P2 and BS 970 EN36C 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.
What is the difference between ASTM A681 P2 and BS 970 EN36C?
Different category: ASTM A681 P2 is Tool & Die Steels, BS 970 EN36C is Alloy Steel.
Can ASTM A681 P2 be substituted with BS 970 EN36C?
ASTM A681 P2 and BS 970 EN36C 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.