Post Stock Login Register

IS 1570 (Part 4) 30Cr4Mo2 vs GB/T 3077 30CrMo

Strong Match — 87.6% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 4) 30Cr4Mo2 (IS 1570 (Part 4):1988) and GB/T 3077 30CrMo (GB/T 3077:2015) are both steel grades. Both fall under the Alloy Steel category. IS 1570 (Part 4) 30Cr4Mo2 is defined under Bureau of Indian Standards (IS), originating from India, while GB/T 3077 30CrMo is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, IS 1570 (Part 4) 30Cr4Mo2 vs GB/T 3077 30CrMo is a 87.6% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 87.6%.

Frequently Compared With IS 1570 (Part 4) 30Cr4Mo2:
IS 1570 (Part 7) 12Cr4Mo5H IS 1570 (Part 7) 12Cr9Mo10H IS 1570 (Part 7) 10Mo6H IS 1570 (Part 7) 12Cr2Mo5V2H NF A35-565 100C6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 07Cr4Mo6
Match Breakdown
CHEMISTRY MATCH
87.6%
MECHANICAL MATCH
No shared data
OVERALL
87.6%
Specifications
Property IS 1570 (Part 4) 30Cr4Mo2 GB/T 3077 30CrMo
Standard IS 1570 (Part 4):1988 GB/T 3077:2015
Category Alloy Steel Alloy Steel
C (%) 0.28-0.33 0.26-0.33
Si (%) 0.10-0.35 0.17-0.37
Mn (%) 0.40-0.80 0.40-0.70
Cr (%) 0.80-1.10 0.80-1.10
Mo (%) 0.15-0.28 0.15-0.25
P (%) Not specified <=0.030
S (%) Not specified <=0.030
Cu (%) 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 IS 1570 (Part 4) 30Cr4Mo2 GB/T 3077 30CrMo
Tensile Strength Not specified >=930 MPa
Yield Strength Not specified >=735 MPa
Elongation Not specified >=12%
Hardness Not specified <=229 HB
Condition Not specified Quenched and tempered, test sample 15 mm; hardness is for bars delivered annealed or high temperature tempered
Typical Applications
IS 1570 (Part 4) 30Cr4Mo2
Not documented
GB/T 3077 30CrMo
Hot-rolled or forged structural alloy steel bars
Key Differences
Can IS 1570 (Part 4) 30Cr4Mo2 Be Substituted With GB/T 3077 30CrMo?
IS 1570 (Part 4) 30Cr4Mo2 and GB/T 3077 30CrMo overlap closely enough on chemistry and mechanical properties that GB/T 3077 30CrMo is often considered as a substitute for IS 1570 (Part 4) 30Cr4Mo2 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
On M-EX Right Now
IS 1570 (Part 4) 30Cr4Mo2
0 active listings and RFQs →
GB/T 3077 30CrMo
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 4) 30Cr4Mo2 and GB/T 3077 30CrMo?
GB/T 3077 30CrMo specifies P, S, Cu which are not specified for IS 1570 (Part 4) 30Cr4Mo2.
Can IS 1570 (Part 4) 30Cr4Mo2 be substituted with GB/T 3077 30CrMo?
IS 1570 (Part 4) 30Cr4Mo2 and GB/T 3077 30CrMo overlap closely enough on chemistry and mechanical properties that GB/T 3077 30CrMo is often considered as a substitute for IS 1570 (Part 4) 30Cr4Mo2 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.