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ASTM A681 L2 vs BS 970 (Part 1) 708A37

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

ASTM A681 L2 (ASTM A681:2008) and BS 970 (Part 1) 708A37 (BS 970 (Part 1):1983) are both steel grades. ASTM A681 L2 is classified under Tool & Die Steels, while BS 970 (Part 1) 708A37 is classified under Alloy Steel — a different category, which is worth noting alongside the chemistry match below. ASTM A681 L2 is typically used for tools, dies and fixtures (clause 1.2), while BS 970 (Part 1) 708A37 is commonly used for used for gears, shafts, studs, machine spindles, crankshafts, and automotive components.. ASTM A681 L2 is defined under ASTM International, originating from United States, while BS 970 (Part 1) 708A37 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, ASTM A681 L2 vs BS 970 (Part 1) 708A37 is a 67.9% 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 L2:
DIN EN ISO 4957 1.2344 GB/T 1299 3Cr2W8V GB/T 1299 4Cr5MoSiV EN ISO 4957 1.2316 DIN EN ISO 4957 1.2379 EN ISO 683-17 100Cr6 IS 1570 (Part 6) 118T3 GOST 5950 4H5MFS1 IS 1570 (Part 6) 103T3 IS 1570 (Part 6) 133T3 GB/T 1299 4Cr5MoSiV1 GOST 5950 4H5MFS
Match Breakdown
CHEMISTRY MATCH
67.9%
MECHANICAL MATCH
No shared data
OVERALL
65%
Specifications
Property ASTM A681 L2 BS 970 (Part 1) 708A37
Standard ASTM A681:2008 BS 970 (Part 1):1983
Category Tool & Die Steels Alloy Steel
C (%) 0.45-1.00 0.35-0.40
Mn (%) 0.10-0.90 0.70-0.90
P (%) <=0.030 <=0.035
S (%) <=0.030 <=0.040
Si (%) 0.10-0.50 Not specified
Cr (%) 0.70-1.20 0.90-1.20
V (%) 0.10-0.30 Not specified
Mo (%) <=0.25 0.15-0.25
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 L2 BS 970 (Part 1) 708A37
Hardness <=197 HB Not specified
Condition Annealed (maximum Brinell hardness) Not specified
Typical Applications
ASTM A681 L2
Tools, dies and fixtures (clause 1.2)
BS 970 (Part 1) 708A37
Used for gears, shafts, studs, machine spindles, crankshafts, and automotive components.
Key Differences
Can ASTM A681 L2 Be Substituted With BS 970 (Part 1) 708A37?
ASTM A681 L2 and BS 970 (Part 1) 708A37 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.
Forms & Sizes Available on M-EX
ASTM A681 L2
No active listings currently.
BS 970 (Part 1) 708A37
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 6700–7000 mm (263.78–275.59 in)
On M-EX Right Now
ASTM A681 L2
0 active listings and RFQs →
BS 970 (Part 1) 708A37
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A681 L2 and BS 970 (Part 1) 708A37?
Different category: ASTM A681 L2 is Tool & Die Steels, BS 970 (Part 1) 708A37 is Alloy Steel. ASTM A681 L2 specifies Si, V which are not specified for BS 970 (Part 1) 708A37.
Can ASTM A681 L2 be substituted with BS 970 (Part 1) 708A37?
ASTM A681 L2 and BS 970 (Part 1) 708A37 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.