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IS 1570 (Part 6) T55Si7Mo3 vs GOST 5950 3H2W8F

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

IS 1570 (Part 6) T55Si7Mo3 (IS 1570 (Part 6):1996) and GOST 5950 3H2W8F (GOST 5950-2000) are both steel grades. Both fall under the Tool & Die Steels category. IS 1570 (Part 6) T55Si7Mo3 is defined under Bureau of Indian Standards (IS) (India).

As per chemical composition, IS 1570 (Part 6) T55Si7Mo3 vs GOST 5950 3H2W8F is a 49.7% 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 IS 1570 (Part 6) T55Si7Mo3:
GOST 5950 4H5MFS1 EN ISO 683-17 100Cr6 EN ISO 4957 1.2316 GOST 5950 4H5MFS DIN EN ISO 4957 1.2344 IS 1570 (Part 6) 133T3 GB/T 1299 3Cr2W8V IS 1570 (Part 6) 118T3 DIN EN ISO 4957 1.2379 IS 1570 (Part 6) 103T3 GB/T 1299 4Cr5MoSiV GB/T 1299 4Cr5MoSiV1
Match Breakdown
CHEMISTRY MATCH
49.7%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property IS 1570 (Part 6) T55Si7Mo3 GOST 5950 3H2W8F
Standard IS 1570 (Part 6):1996 GOST 5950-2000
Category Tool & Die Steels Tool & Die Steels
C (%) 0.50-0.60 0.3-0.4
Si (%) 1.50-2.00 0.2-0.5
Mn (%) 0.80-1.00 Not specified
Mo (%) 0.25-0.40 Not specified
V (%) 0.12-0.20 (optional) 0.3-0.6
P (%) <=0.035 Not specified
S (%) <=0.035 Not specified
Cr (%) Not specified 2.2-2.7
W (%) Not specified 7.5-9.0
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 1570 (Part 6) T55Si7Mo3 GOST 5950 3H2W8F
Tensile Strength Not specified 1400-1700 MPa
Yield Strength Not specified 1200 MPa min
Elongation Not specified 8% min
Hardness Not specified 45-50 HRC
Typical Applications
IS 1570 (Part 6) T55Si7Mo3
Not documented
GOST 5950 3H2W8F
Used for forging dies, extrusion tools, hot punches, mandrels, and die inserts.
Key Differences
Can IS 1570 (Part 6) T55Si7Mo3 Be Substituted With GOST 5950 3H2W8F?
IS 1570 (Part 6) T55Si7Mo3 and GOST 5950 3H2W8F 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
IS 1570 (Part 6) T55Si7Mo3
No active listings currently.
GOST 5950 3H2W8F
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2800–4300 mm (110.24–169.29 in)
On M-EX Right Now
IS 1570 (Part 6) T55Si7Mo3
0 active listings and RFQs →
GOST 5950 3H2W8F
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 6) T55Si7Mo3 and GOST 5950 3H2W8F?
IS 1570 (Part 6) T55Si7Mo3 specifies Mn, Mo, P, S which are not specified for GOST 5950 3H2W8F. GOST 5950 3H2W8F specifies Cr, W which are not specified for IS 1570 (Part 6) T55Si7Mo3.
Can IS 1570 (Part 6) T55Si7Mo3 be substituted with GOST 5950 3H2W8F?
IS 1570 (Part 6) T55Si7Mo3 and GOST 5950 3H2W8F 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.