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GB/T 3077 20CrMnMo vs IS 4367 07Cr4Mo6

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

GB/T 3077 20CrMnMo (GB/T 3077:2015) and IS 4367 07Cr4Mo6 (IS 4367:1991) are both steel grades. Both fall under the Alloy Steel category. GB/T 3077 20CrMnMo is defined under Guobiao Standards (GB/T), originating from China, while IS 4367 07Cr4Mo6 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, GB/T 3077 20CrMnMo vs IS 4367 07Cr4Mo6 is a 55.1% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With GB/T 3077 20CrMnMo:
IS 1570 (Part 7) 10Mo6H UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
55.1%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property GB/T 3077 20CrMnMo IS 4367 07Cr4Mo6
Standard GB/T 3077:2015 IS 4367:1991
Category Alloy Steel Alloy Steel
C (%) 0.17-0.23 <=0.12
Si (%) 0.17-0.37 0.15-0.60
Mn (%) 0.90-1.20 0.40-0.70
Cr (%) 1.10-1.40 0.70-1.10
Mo (%) 0.20-0.30 0.45-0.65
P (%) <=0.030 <=0.035
S (%) <=0.030 <=0.035
Cu (%) <=0.30 Not specified
Ni (%) Not specified <=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 20CrMnMo IS 4367 07Cr4Mo6
Tensile Strength >=1180 MPa 380-550 MPa
Yield Strength >=885 MPa 225 MPa min
Elongation >=10% >=19%
Hardness <=217 HB Not specified
Condition Quenched and tempered, test sample 15 mm; hardness is for bars delivered annealed or high temperature tempered Normalised and tempered, ruling section up to 40 mm
Izod Impact Not specified 60 J min
Hardness (soft annealed) Not specified <=170 HB
Typical Applications
GB/T 3077 20CrMnMo
Hot-rolled or forged structural alloy steel bars
IS 4367 07Cr4Mo6
Not documented
Key Differences
Can GB/T 3077 20CrMnMo Be Substituted With IS 4367 07Cr4Mo6?
GB/T 3077 20CrMnMo and IS 4367 07Cr4Mo6 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.
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GB/T 3077 20CrMnMo
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IS 4367 07Cr4Mo6
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Frequently Asked Questions
What is the difference between GB/T 3077 20CrMnMo and IS 4367 07Cr4Mo6?
GB/T 3077 20CrMnMo specifies Cu which is not specified for IS 4367 07Cr4Mo6. IS 4367 07Cr4Mo6 specifies Ni which is not specified for GB/T 3077 20CrMnMo.
Can GB/T 3077 20CrMnMo be substituted with IS 4367 07Cr4Mo6?
GB/T 3077 20CrMnMo and IS 4367 07Cr4Mo6 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.