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GB/T 3077 50Cr vs IS 1570 (Part 4) 50Cr4V2

Close Alternative — 80.9% match based on chemical composition and mechanical property overlap.

GB/T 3077 50Cr (GB/T 3077:2015) and IS 1570 (Part 4) 50Cr4V2 (IS 1570 (Part 4):1988) are both steel grades. Both fall under the Alloy Steel category. GB/T 3077 50Cr is defined under Guobiao Standards (GB/T), originating from China, while IS 1570 (Part 4) 50Cr4V2 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, GB/T 3077 50Cr vs IS 1570 (Part 4) 50Cr4V2 is a 80.9% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 80.9%.

Frequently Compared With GB/T 3077 50Cr:
IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 IS 1570 (Part 7) 10Mo6H IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
80.9%
MECHANICAL MATCH
No shared data
OVERALL
80.9%
Specifications
Property GB/T 3077 50Cr IS 1570 (Part 4) 50Cr4V2
Standard GB/T 3077:2015 IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) 0.47-0.54 0.45-0.55
Si (%) 0.17-0.37 0.10-0.35
Mn (%) 0.50-0.80 0.50-0.80
Cr (%) 0.80-1.10 0.90-1.20
P (%) <=0.030 Not specified
S (%) <=0.030 Not specified
Cu (%) <=0.30 Not specified
V (%) Not specified 0.15-0.30
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property GB/T 3077 50Cr IS 1570 (Part 4) 50Cr4V2
Tensile Strength >=1080 MPa Not specified
Yield Strength >=930 MPa Not specified
Elongation >=9% Not specified
Hardness <=229 HB Not specified
Condition Quenched and tempered, test sample 25 mm; hardness is for bars delivered annealed or high temperature tempered Not specified
Typical Applications
GB/T 3077 50Cr
Hot-rolled or forged structural alloy steel bars
IS 1570 (Part 4) 50Cr4V2
Not documented
Key Differences
Can GB/T 3077 50Cr Be Substituted With IS 1570 (Part 4) 50Cr4V2?
GB/T 3077 50Cr and IS 1570 (Part 4) 50Cr4V2 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
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GB/T 3077 50Cr
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IS 1570 (Part 4) 50Cr4V2
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Frequently Asked Questions
What is the difference between GB/T 3077 50Cr and IS 1570 (Part 4) 50Cr4V2?
GB/T 3077 50Cr specifies P, S, Cu which are not specified for IS 1570 (Part 4) 50Cr4V2. IS 1570 (Part 4) 50Cr4V2 specifies V which is not specified for GB/T 3077 50Cr.
Can GB/T 3077 50Cr be substituted with IS 1570 (Part 4) 50Cr4V2?
GB/T 3077 50Cr and IS 1570 (Part 4) 50Cr4V2 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.