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GOST 5950 H12F1 vs IS 3748 103T3

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

GOST 5950 H12F1 (GOST 5950-2000) and IS 3748 103T3 (IS 3748:1990) are both steel grades. Both fall under the Tool & Die Steels category. GOST 5950 H12F1 is typically used for used for blanking dies, punches, forming dies, cutters, and rolling tools., while IS 3748 103T3 is commonly used for cold work tools and dies for blanking, trimming, chipping and shearing. IS 3748 103T3 is defined under Bureau of Indian Standards (IS) (India).

As per chemical composition, GOST 5950 H12F1 vs IS 3748 103T3 is a 68.8% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With GOST 5950 H12F1:
GOST 5950 4H5MFS DIN EN ISO 4957 1.2344 GB/T 1299 4Cr5MoSiV GB/T 1299 4Cr5MoSiV1 GOST 5950 4H5MFS1 AISI 52100 EN ISO 4957 1.2316 DIN EN ISO 4957 1.2379 GOST 5950 3H2W8F EN ISO 683-17 100Cr6 GB/T 1299 3Cr2W8V IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
68.8%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property GOST 5950 H12F1 IS 3748 103T3
Standard GOST 5950-2000 IS 3748:1990
Category Tool & Die Steels Tool & Die Steels
C (%) 1.9-2.2 0.95-1.10
Cr (%) 11-13 Not specified
V (%) 0.7-1.0 Not specified
Mn (%) 0.2-0.6 <=0.40
Si (%) 0.2-0.6 0.10-0.30
S (%) Not specified <=0.035
P (%) Not specified <=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 GOST 5950 H12F1 IS 3748 103T3
Tensile Strength 1050-1250 MPa Not specified
Yield Strength 850 MPa min Not specified
Elongation 5% min Not specified
Hardness 61-65 HRC <=220 HB
Condition Not specified Annealed (maximum Brinell hardness)
Typical Applications
GOST 5950 H12F1
Used for blanking dies, punches, forming dies, cutters, and rolling tools.
IS 3748 103T3
Cold work tools and dies for blanking, trimming, chipping and shearing
Key Differences
Can GOST 5950 H12F1 Be Substituted With IS 3748 103T3?
GOST 5950 H12F1 and IS 3748 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 H12F1
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3600–4200 mm (141.73–165.35 in)
IS 3748 103T3
No active listings currently.
On M-EX Right Now
GOST 5950 H12F1
2 active listings and RFQs →
IS 3748 103T3
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between GOST 5950 H12F1 and IS 3748 103T3?
GOST 5950 H12F1 specifies Cr, V which are not specified for IS 3748 103T3. IS 3748 103T3 specifies S, P which are not specified for GOST 5950 H12F1.
Can GOST 5950 H12F1 be substituted with IS 3748 103T3?
GOST 5950 H12F1 and IS 3748 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.