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DIN EN ISO 4957 1.2379 vs IS 3748 70T6

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

DIN EN ISO 4957 1.2379 (DIN EN ISO 4957:2018-11) and IS 3748 70T6 (IS 3748:1990) are both steel grades. Both fall under the Tool & Die Steels category. DIN EN ISO 4957 1.2379 is typically used for blanking dies, forming dies, thread rolling dies, punches, shear blades, gauges, broaches, drawing dies, while IS 3748 70T6 is commonly used for cold work tools and dies for blanking, trimming, chipping and shearing. DIN EN ISO 4957 1.2379 is defined under European Standard (EN), originating from Europe, while IS 3748 70T6 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, DIN EN ISO 4957 1.2379 vs IS 3748 70T6 is a 63.3% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With DIN EN ISO 4957 1.2379:
EN ISO 683-17 100Cr6 GB/T 1299 4Cr5MoSiV GOST 5950 4H5MFS IS 1570 (Part 6) 133T3 IS 1570 (Part 6) 55T8 AISI 52100 IS 1570 (Part 6) 103T3 IS 1570 (Part 6) 50T8 IS 1570 (Part 6) 65T6 IS 1570 (Part 6) 75T6 IS 1570 (Part 6) 60T6 IS 1570 (Part 6) 70T3
Match Breakdown
CHEMISTRY MATCH
63.3%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property DIN EN ISO 4957 1.2379 IS 3748 70T6
Standard DIN EN ISO 4957:2018-11 IS 3748:1990
Category Tool & Die Steels Tool & Die Steels
C (%) 1.50–1.60 0.65-0.75
Mn (%) 0.25–0.60 0.50-0.80
Si (%) 0.10–0.40 0.10-0.35
Cr (%) 11.00–13.00 Not specified
Mo (%) 0.70–1.00 Not specified
V (%) 0.80–1.10 Not specified
S (%) ≤0.030 <=0.035
P (%) ≤0.030 <=0.035
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property DIN EN ISO 4957 1.2379 IS 3748 70T6
Hardness (annealed) ≤255 HB Not specified
Hardness (hardened) 58–62 HRC Not specified
Compressive Strength 2600 MPa Not specified
Hardness Not specified <=220 HB
Condition Not specified Annealed (maximum Brinell hardness)
Typical Applications
DIN EN ISO 4957 1.2379
Blanking dies, forming dies, thread rolling dies, punches, shear blades, gauges, broaches, drawing dies
IS 3748 70T6
Cold work tools and dies for blanking, trimming, chipping and shearing
Key Differences
Can DIN EN ISO 4957 1.2379 Be Substituted With IS 3748 70T6?
DIN EN ISO 4957 1.2379 and IS 3748 70T6 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
DIN EN ISO 4957 1.2379
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2800–3300 mm (110.24–129.92 in)
IS 3748 70T6
No active listings currently.
On M-EX Right Now
DIN EN ISO 4957 1.2379
2 active listings and RFQs →
IS 3748 70T6
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between DIN EN ISO 4957 1.2379 and IS 3748 70T6?
DIN EN ISO 4957 1.2379 specifies Cr, Mo, V which are not specified for IS 3748 70T6.
Can DIN EN ISO 4957 1.2379 be substituted with IS 3748 70T6?
DIN EN ISO 4957 1.2379 and IS 3748 70T6 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.