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GOST 5950 H12 vs IS 1570 (Part 6) 103T3

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

GOST 5950 H12 (GOST 5950-2000) and IS 1570 (Part 6) 103T3 (IS 1570 (Part 6):1996) are both steel grades. Both fall under the Tool & Die Steels category. IS 1570 (Part 6) 103T3 is defined under Bureau of Indian Standards (IS) (India).

As per chemical composition, GOST 5950 H12 vs IS 1570 (Part 6) 103T3 is a 65.6% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With GOST 5950 H12:
EN ISO 4957 1.2316 GOST 5950 3H2W8F GB/T 1299 3Cr2W8V GOST 5950 4H5MFS1 EN ISO 683-17 100Cr6 GB/T 1299 4Cr5MoSiV1 GOST 5950 4H5MFS DIN EN ISO 4957 1.2379 GB/T 1299 4Cr5MoSiV DIN EN ISO 4957 1.2344 AISI 52100 IS 3748 103T3
Match Breakdown
CHEMISTRY MATCH
65.6%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property GOST 5950 H12 IS 1570 (Part 6) 103T3
Standard GOST 5950-2000 IS 1570 (Part 6):1996
Category Tool & Die Steels Tool & Die Steels
C (%) 1.9-2.2 0.95-1.10
Cr (%) 11-13 <=0.20
Mn (%) 0.2-0.6 <=0.40
Si (%) 0.2-0.6 0.10-0.30
P (%) Not specified <=0.035
S (%) Not specified <=0.035
Cu (%) Not specified <=0.25
Ni (%) Not specified <=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 GOST 5950 H12 IS 1570 (Part 6) 103T3
Tensile Strength 1000-1200 MPa Not specified
Yield Strength 800 MPa min Not specified
Elongation 5% min Not specified
Hardness 60-64 HRC Not specified
Typical Applications
GOST 5950 H12
Used for cold dies, punches, shear blades, rolls, and forming tools.
IS 1570 (Part 6) 103T3
Not documented
Key Differences
Can GOST 5950 H12 Be Substituted With IS 1570 (Part 6) 103T3?
GOST 5950 H12 and IS 1570 (Part 6) 103T3 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
GOST 5950 H12
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3600–4000 mm (141.73–157.48 in)
IS 1570 (Part 6) 103T3
No active listings currently.
On M-EX Right Now
GOST 5950 H12
2 active listings and RFQs →
IS 1570 (Part 6) 103T3
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between GOST 5950 H12 and IS 1570 (Part 6) 103T3?
IS 1570 (Part 6) 103T3 specifies P, S, Cu, Ni which are not specified for GOST 5950 H12.
Can GOST 5950 H12 be substituted with IS 1570 (Part 6) 103T3?
GOST 5950 H12 and IS 1570 (Part 6) 103T3 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.