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SAE J404 1330 vs GB/T 3077 30Mn2

Strong Match — 90.6% match based on chemical composition and mechanical property overlap.

SAE J404 1330 (SAE J404:2009) and GB/T 3077 30Mn2 (GB/T 3077:2015) are both steel grades. Both fall under the Alloy Steel category. SAE J404 1330 is typically used for shafts, heavy duty gears, structural components, while GB/T 3077 30Mn2 is commonly used for hot-rolled or forged structural alloy steel bars. SAE J404 1330 is defined under SAE International, originating from United States, while GB/T 3077 30Mn2 is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, SAE J404 1330 vs GB/T 3077 30Mn2 is a 90.6% 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 90.6%.

Frequently Compared With SAE J404 1330:
IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 07Cr4Mo6 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10 EN 10028-2 10CrMo9-10 IS 1570 (Part 4) 10Mo6
Match Breakdown
CHEMISTRY MATCH
90.6%
MECHANICAL MATCH
No shared data
OVERALL
90.6%
Specifications
Property SAE J404 1330 GB/T 3077 30Mn2
Standard SAE J404:2009 GB/T 3077:2015
Category Alloy Steel Alloy Steel
C (%) 0.28-0.33 0.27-0.34
Mn (%) 1.60-1.80 1.40-1.80
P (%) <=0.030 <=0.030
S (%) <=0.040 <=0.030
Si (%) 0.15-0.35 0.17-0.37
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 SAE J404 1330 GB/T 3077 30Mn2
Tensile Strength Not specified >=785 MPa
Yield Strength Not specified >=635 MPa
Elongation Not specified >=12%
Hardness Not specified <=207 HB
Condition Not specified Quenched and tempered, test sample 25 mm; hardness is for bars delivered annealed or high temperature tempered
Typical Applications
SAE J404 1330
Shafts, heavy duty gears, structural components
GB/T 3077 30Mn2
Hot-rolled or forged structural alloy steel bars
Key Differences
Can SAE J404 1330 Be Substituted With GB/T 3077 30Mn2?
SAE J404 1330 and GB/T 3077 30Mn2 overlap closely enough on chemistry and mechanical properties that GB/T 3077 30Mn2 is often considered as a substitute for SAE J404 1330 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
SAE J404 1330
Round Bar → (3 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 5000–6100 mm (196.85–240.16 in)
GB/T 3077 30Mn2
No active listings currently.
On M-EX Right Now
SAE J404 1330
3 active listings and RFQs →
GB/T 3077 30Mn2
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between SAE J404 1330 and GB/T 3077 30Mn2?
GB/T 3077 30Mn2 specifies Cu which is not specified for SAE J404 1330.
Can SAE J404 1330 be substituted with GB/T 3077 30Mn2?
SAE J404 1330 and GB/T 3077 30Mn2 overlap closely enough on chemistry and mechanical properties that GB/T 3077 30Mn2 is often considered as a substitute for SAE J404 1330 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.