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GB/T 3077 38CrSi vs SAE J404 52100

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

GB/T 3077 38CrSi (GB/T 3077:2015) and SAE J404 52100 (SAE J404:2009) are both steel grades. Both fall under the Alloy Steel category. GB/T 3077 38CrSi is typically used for hot-rolled or forged structural alloy steel bars, while SAE J404 52100 is commonly used for ball bearings, roller bearings, races, bushings, precision tooling, dies, gauges. GB/T 3077 38CrSi is defined under Guobiao Standards (GB/T), originating from China, while SAE J404 52100 is defined under SAE International, originating from United States.

As per chemical composition, GB/T 3077 38CrSi vs SAE J404 52100 is a 77.7% 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 38CrSi:
IS 1570 (Part 7) 10Mo6H NF A35-565 100C6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 10Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
77.7%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property GB/T 3077 38CrSi SAE J404 52100
Standard GB/T 3077:2015 SAE J404:2009
Category Alloy Steel Alloy Steel
C (%) 0.35-0.43 0.93-1.05
Si (%) 1.00-1.30 0.15-0.35
Mn (%) 0.30-0.60 0.25-0.45
Cr (%) 1.30-1.60 1.35-1.60
P (%) <=0.030 <=0.025
S (%) <=0.030 <=0.025
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 38CrSi SAE J404 52100
Tensile Strength >=980 MPa Not specified
Yield Strength >=835 MPa Not specified
Elongation >=12% Not specified
Hardness <=255 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 38CrSi
Hot-rolled or forged structural alloy steel bars
SAE J404 52100
Ball bearings, roller bearings, races, bushings, precision tooling, dies, gauges
Key Differences
Can GB/T 3077 38CrSi Be Substituted With SAE J404 52100?
GB/T 3077 38CrSi and SAE J404 52100 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 38CrSi
No active listings currently.
SAE J404 52100
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5100–6700 mm (200.79–263.78 in)
On M-EX Right Now
GB/T 3077 38CrSi
0 active listings and RFQs →
SAE J404 52100
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GB/T 3077 38CrSi and SAE J404 52100?
GB/T 3077 38CrSi specifies Cu which is not specified for SAE J404 52100.
Can GB/T 3077 38CrSi be substituted with SAE J404 52100?
GB/T 3077 38CrSi and SAE J404 52100 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.