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GB/T 3077 42SiMn vs SAE J404 1330

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

GB/T 3077 42SiMn (GB/T 3077:2015) and SAE J404 1330 (SAE J404:2009) are both steel grades. Both fall under the Alloy Steel category. GB/T 3077 42SiMn is typically used for hot-rolled or forged structural alloy steel bars, while SAE J404 1330 is commonly used for shafts, heavy duty gears, structural components. GB/T 3077 42SiMn is defined under Guobiao Standards (GB/T), originating from China, while SAE J404 1330 is defined under SAE International, originating from United States.

As per chemical composition, GB/T 3077 42SiMn vs SAE J404 1330 is a 76.9% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 69.9%.

Frequently Compared With GB/T 3077 42SiMn:
IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 EN 10028-2 10CrMo9-10 IS 1570 (Part 4) 10Mo6
Match Breakdown
CHEMISTRY MATCH
76.9%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property GB/T 3077 42SiMn SAE J404 1330
Standard GB/T 3077:2015 SAE J404:2009
Category Alloy Steel Alloy Steel
C (%) 0.39-0.45 0.28-0.33
Si (%) 1.10-1.40 0.15-0.35
Mn (%) 1.10-1.40 1.60-1.80
P (%) <=0.030 <=0.030
S (%) <=0.030 <=0.040
Cu (%) <=0.30 Not specified
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 42SiMn SAE J404 1330
Tensile Strength >=885 MPa Not specified
Yield Strength >=735 MPa Not specified
Elongation >=15% Not specified
Hardness <=229 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 42SiMn
Hot-rolled or forged structural alloy steel bars
SAE J404 1330
Shafts, heavy duty gears, structural components
Key Differences
Can GB/T 3077 42SiMn Be Substituted With SAE J404 1330?
GB/T 3077 42SiMn and SAE J404 1330 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.
Forms & Sizes Available on M-EX
GB/T 3077 42SiMn
No active listings currently.
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)
On M-EX Right Now
GB/T 3077 42SiMn
0 active listings and RFQs →
SAE J404 1330
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between GB/T 3077 42SiMn and SAE J404 1330?
GB/T 3077 42SiMn specifies Cu which is not specified for SAE J404 1330.
Can GB/T 3077 42SiMn be substituted with SAE J404 1330?
GB/T 3077 42SiMn and SAE J404 1330 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.