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ASTM A681 A9 vs EN ISO 4957 1.2316

Minimal Match — 34.2% match based on chemical composition and mechanical property overlap.

ASTM A681 A9 (ASTM A681:2008) and EN ISO 4957 1.2316 (EN ISO 4957:2018) are both steel grades. Both fall under the Tool & Die Steels category. ASTM A681 A9 is typically used for tools, dies and fixtures (clause 1.2), while EN ISO 4957 1.2316 is commonly used for plastic injection moulds for corrosive materials, food packaging moulds. ASTM A681 A9 is defined under ASTM International, originating from United States, while EN ISO 4957 1.2316 is defined under European Standard (EN), originating from Europe.

As per chemical composition, ASTM A681 A9 vs EN ISO 4957 1.2316 is a 51.3% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 34.2%.

Frequently Compared With ASTM A681 A9:
EN ISO 683-17 100Cr6 IS 1570 (Part 6) 103T3 IS 1570 (Part 6) 133T3 DIN EN ISO 4957 1.2379 GOST 5950 3H2W8F GB/T 1299 4Cr5MoSiV GB/T 1299 4Cr5MoSiV1 GOST 5950 4H5MFS GOST 5950 4H5MFS1 DIN EN ISO 4957 1.2344 GB/T 1299 3Cr2W8V IS 1570 (Part 6) 118T3
Match Breakdown
CHEMISTRY MATCH
51.3%
MECHANICAL MATCH
0%
OVERALL
34.2%
Specifications
Property ASTM A681 A9 EN ISO 4957 1.2316
Standard ASTM A681:2008 EN ISO 4957:2018
Category Tool & Die Steels Tool & Die Steels
C (%) 0.45-0.55 ≤0.06
Mn (%) 0.20-0.50 ≤1.00
P (%) <=0.030 Not specified
S (%) <=0.030 Not specified
Si (%) 0.95-1.15 ≤0.50
Cr (%) 4.75-5.50 15.5–17.5
V (%) 0.80-1.40 Not specified
Mo (%) 1.30-1.80 0.80–1.30
Ni (%) 1.25-1.75 0.80–1.50
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 A9 EN ISO 4957 1.2316
Hardness <=248 HB Not specified
Condition Annealed (maximum Brinell hardness) Not specified
Hardness HRC Not specified 28–34 (pre-hardened)
Hardness HRC (hardened) Not specified 38–44
Corrosion Resistance Not specified Good in humid/corrosive environments
Typical Applications
ASTM A681 A9
Tools, dies and fixtures (clause 1.2)
EN ISO 4957 1.2316
Plastic injection moulds for corrosive materials, food packaging moulds
Key Differences
Can ASTM A681 A9 Be Substituted With EN ISO 4957 1.2316?
ASTM A681 A9 and EN ISO 4957 1.2316 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 A9
No active listings currently.
EN ISO 4957 1.2316
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2600–2700 mm (102.36–106.3 in)
On M-EX Right Now
ASTM A681 A9
0 active listings and RFQs →
EN ISO 4957 1.2316
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A681 A9 and EN ISO 4957 1.2316?
ASTM A681 A9 specifies P, S, V which are not specified for EN ISO 4957 1.2316.
Can ASTM A681 A9 be substituted with EN ISO 4957 1.2316?
ASTM A681 A9 and EN ISO 4957 1.2316 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.