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GOST 1050 20 vs IS 1570 (Part 4) 15Cr6Ni6

Related Material — 65% match based on chemical composition and mechanical property overlap.

GOST 1050 20 (GOST 1050-2013) and IS 1570 (Part 4) 15Cr6Ni6 (IS 1570 (Part 4):1988) are both steel grades. GOST 1050 20 is classified under Carbon Steel, while IS 1570 (Part 4) 15Cr6Ni6 is classified under Alloy Steel — a different category, which is worth noting alongside the chemistry match below. IS 1570 (Part 4) 15Cr6Ni6 is defined under Bureau of Indian Standards (IS) (India).

As per chemical composition, GOST 1050 20 vs IS 1570 (Part 4) 15Cr6Ni6 is a 68.3% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 65%.

Frequently Compared With GOST 1050 20:
BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 040A04 BS 970 (Part 1) 060A32
Match Breakdown
CHEMISTRY MATCH
68.3%
MECHANICAL MATCH
No shared data
OVERALL
65%
Specifications
Property GOST 1050 20 IS 1570 (Part 4) 15Cr6Ni6
Standard GOST 1050-2013 IS 1570 (Part 4):1988
Category Carbon Steel Alloy Steel
C (%) 0.17-0.24 0.12-0.18
Si (%) 0.17-0.37 0.15-0.35
Mn (%) 0.35-0.65 0.40-0.60
S (%) <=0.040 Not specified
P (%) <=0.035 Not specified
Cr (%) <=0.25 1.40-1.70
Ni (%) <=0.25 1.40-1.70
Cu (%) <=0.25 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property GOST 1050 20 IS 1570 (Part 4) 15Cr6Ni6
Tensile Strength 410-550 MPa Not specified
Yield Strength >=245 MPa Not specified
Elongation >=24% Not specified
Hardness <=156 HB Not specified
Typical Applications
GOST 1050 20
shafts, bolts, gears, pins, forgings, machined components
IS 1570 (Part 4) 15Cr6Ni6
Not documented
Key Differences
Can GOST 1050 20 Be Substituted With IS 1570 (Part 4) 15Cr6Ni6?
GOST 1050 20 and IS 1570 (Part 4) 15Cr6Ni6 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 1050 20
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 5900–5900 mm (232.28–232.28 in)
IS 1570 (Part 4) 15Cr6Ni6
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On M-EX Right Now
GOST 1050 20
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IS 1570 (Part 4) 15Cr6Ni6
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Frequently Asked Questions
What is the difference between GOST 1050 20 and IS 1570 (Part 4) 15Cr6Ni6?
Different category: GOST 1050 20 is Carbon Steel, IS 1570 (Part 4) 15Cr6Ni6 is Alloy Steel. GOST 1050 20 specifies S, P, Cu which are not specified for IS 1570 (Part 4) 15Cr6Ni6.
Can GOST 1050 20 be substituted with IS 1570 (Part 4) 15Cr6Ni6?
GOST 1050 20 and IS 1570 (Part 4) 15Cr6Ni6 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.