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GOST 4543 40HFA vs SAE J404 6150

Close Alternative — 78.7% match based on chemical composition and mechanical property overlap.

GOST 4543 40HFA (GOST 4543-2016) and SAE J404 6150 (SAE J404:2009) are both steel grades. Both fall under the Alloy Steel category. GOST 4543 40HFA is typically used for used for springs, shafts, gears, fasteners, and aircraft structural components., while SAE J404 6150 is commonly used for springs, hand tools, high strength shafts, axles. SAE J404 6150 is defined under SAE International (United States).

As per chemical composition, GOST 4543 40HFA vs SAE J404 6150 is a 78.7% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 78.7%.

Frequently Compared With GOST 4543 40HFA:
NF A35-565 100C6 UNI 11234 100Cr6 GOST 4543 12HN3A GB/T 3077 12Cr2Ni4A IS 1570 (Part 4) 103Cr4 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
78.7%
MECHANICAL MATCH
No shared data
OVERALL
78.7%
Specifications
Property GOST 4543 40HFA SAE J404 6150
Standard GOST 4543-2016 SAE J404:2009
Category Alloy Steel Alloy Steel
C (%) 0.37-0.44 0.48-0.53
Cr (%) 0.8-1.1 0.80-1.10
V (%) 0.1-0.2 >=0.15
Mn (%) 0.5-0.8 0.70-0.90
Si (%) 0.17-0.37 0.15-0.35
P (%) Not specified <=0.030
S (%) Not specified <=0.040
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property GOST 4543 40HFA SAE J404 6150
Tensile Strength 950-1150 MPa Not specified
Yield Strength 785 MPa min Not specified
Elongation 11% min Not specified
Hardness 269-331 HB Not specified
Typical Applications
GOST 4543 40HFA
Used for springs, shafts, gears, fasteners, and aircraft structural components.
SAE J404 6150
Springs, hand tools, high strength shafts, axles
Key Differences
Can GOST 4543 40HFA Be Substituted With SAE J404 6150?
GOST 4543 40HFA and SAE J404 6150 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
Forms & Sizes Available on M-EX
GOST 4543 40HFA
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 6500–6600 mm (255.91–259.84 in)
SAE J404 6150
Round Bar → (3 listings)
Diameter: 30–30 mm (1.18–1.18 in)
Length: 4600–6300 mm (181.1–248.03 in)
On M-EX Right Now
GOST 4543 40HFA
2 active listings and RFQs →
SAE J404 6150
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between GOST 4543 40HFA and SAE J404 6150?
SAE J404 6150 specifies P, S which are not specified for GOST 4543 40HFA.
Can GOST 4543 40HFA be substituted with SAE J404 6150?
GOST 4543 40HFA and SAE J404 6150 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.