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GB/T 3077 30CrMo vs IS 4367 10Cr9Mo10

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

GB/T 3077 30CrMo (GB/T 3077:2015) and IS 4367 10Cr9Mo10 (IS 4367:1991) are both steel grades. Both fall under the Alloy Steel category. GB/T 3077 30CrMo is defined under Guobiao Standards (GB/T), originating from China, while IS 4367 10Cr9Mo10 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, GB/T 3077 30CrMo vs IS 4367 10Cr9Mo10 is a 60.5% 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 30CrMo:
IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Mo6H NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 7) 10Cr36Mo10H EN 10028-2 10CrMo9-10 IS 1570 (Part 4) 10Mo6
Match Breakdown
CHEMISTRY MATCH
60.5%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property GB/T 3077 30CrMo IS 4367 10Cr9Mo10
Standard GB/T 3077:2015 IS 4367:1991
Category Alloy Steel Alloy Steel
C (%) 0.26-0.33 <=0.15
Si (%) 0.17-0.37 <=0.50
Mn (%) 0.40-0.70 0.40-0.70
Cr (%) 0.80-1.10 2.00-2.50
Mo (%) 0.15-0.25 0.90-1.10
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 30CrMo IS 4367 10Cr9Mo10
Tensile Strength >=930 MPa 410-590 MPa
Yield Strength >=735 MPa 245 MPa min
Elongation >=12% >=18%
Hardness <=229 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 50 mm
Izod Impact Not specified 55 J min
Hardness (soft annealed) Not specified <=187 HB
Typical Applications
GB/T 3077 30CrMo
Hot-rolled or forged structural alloy steel bars
IS 4367 10Cr9Mo10
Not documented
Key Differences
Can GB/T 3077 30CrMo Be Substituted With IS 4367 10Cr9Mo10?
GB/T 3077 30CrMo and IS 4367 10Cr9Mo10 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 30CrMo
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IS 4367 10Cr9Mo10
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Frequently Asked Questions
What is the difference between GB/T 3077 30CrMo and IS 4367 10Cr9Mo10?
GB/T 3077 30CrMo specifies Cu which is not specified for IS 4367 10Cr9Mo10. IS 4367 10Cr9Mo10 specifies Ni which is not specified for GB/T 3077 30CrMo.
Can GB/T 3077 30CrMo be substituted with IS 4367 10Cr9Mo10?
GB/T 3077 30CrMo and IS 4367 10Cr9Mo10 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.