Strong Match — 86% match
based on chemical composition and mechanical property overlap.
GB/T 3077 30Cr (GB/T 3077:2015) and SAE J404 5132 (SAE J404:2009) are both steel grades.
Both fall under the Alloy Steel category.
GB/T 3077 30Cr is typically used for hot-rolled or forged structural alloy steel bars, while SAE J404 5132 is commonly used for high-tensile bolts, studs, shafts and engineering components requiring surface hardness.
GB/T 3077 30Cr is defined under Guobiao Standards (GB/T), originating from China, while SAE J404 5132 is defined under SAE International, originating from United States.
As per chemical composition, GB/T 3077 30Cr vs SAE J404 5132 is a 86% 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 86%.
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 30Cr
SAE J404 5132
Tensile Strength
>=885 MPa
Not specified
Yield Strength
>=685 MPa
Not specified
Elongation
>=11%
Not specified
Hardness
<=187 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 30Cr
Hot-rolled or forged structural alloy steel bars
SAE J404 5132
High-tensile bolts, studs, shafts and engineering components requiring surface hardness
Key Differences
GB/T 3077 30Cr specifies Cu which is not specified for SAE J404 5132.
Can GB/T 3077 30Cr Be Substituted With SAE J404 5132?
GB/T 3077 30Cr and SAE J404 5132 overlap closely enough on chemistry and mechanical properties that SAE J404 5132 is often considered as a substitute for GB/T 3077 30Cr in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between GB/T 3077 30Cr and SAE J404 5132?
GB/T 3077 30Cr specifies Cu which is not specified for SAE J404 5132.
Can GB/T 3077 30Cr be substituted with SAE J404 5132?
GB/T 3077 30Cr and SAE J404 5132 overlap closely enough on chemistry and mechanical properties that SAE J404 5132 is often considered as a substitute for GB/T 3077 30Cr in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.