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GOST 14959 50HFA vs SAE J404 6150

Close Alternative — 84% match based on chemical composition and mechanical property overlap.

GOST 14959 50HFA (GOST 14959-2016) and SAE J404 6150 (SAE J404:2000) are both steel grades. Both fall under the Alloy Steel category. GOST 14959 50HFA is typically used for used for coil springs, torsion bars, leaf springs, washers, and suspension parts., while SAE J404 6150 is commonly used for chemistry-only alloy steel grade; see the composition notes for product scope. SAE J404 6150 is defined under SAE International (United States).

As per chemical composition, GOST 14959 50HFA vs SAE J404 6150 is a 84% 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 84%.

Frequently Compared With GOST 14959 50HFA:
GOST 4543 12HN3A NF A35-565 100C6 UNI 11234 100Cr6 GB/T 3077 12Cr2Ni4A IS 4367 10Cr9Mo10 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
84%
MECHANICAL MATCH
No shared data
OVERALL
84%
Specifications
Property GOST 14959 50HFA SAE J404 6150
Standard GOST 14959-2016 SAE J404:2000
Category Alloy Steel Alloy Steel
C (%) 0.46-0.54 0.48-0.53
Cr (%) 0.8-1.1 0.80-1.10
V (%) 0.1-0.2 >=0.15
Si (%) 0.17-0.37 0.15-0.35
Mn (%) 0.5-0.8 0.70-0.90
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 14959 50HFA SAE J404 6150
Tensile Strength 1200-1500 MPa Not specified
Yield Strength 1080 MPa min Not specified
Elongation 8% min Not specified
Hardness 42-50 HRC Not specified
Typical Applications
GOST 14959 50HFA
Used for coil springs, torsion bars, leaf springs, washers, and suspension parts.
SAE J404 6150
Chemistry-only alloy steel grade; see the composition notes for product scope
Key Differences
Can GOST 14959 50HFA Be Substituted With SAE J404 6150?
GOST 14959 50HFA 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 14959 50HFA
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5500–6000 mm (216.54–236.22 in)
SAE J404 6150
No active listings currently.
On M-EX Right Now
GOST 14959 50HFA
2 active listings and RFQs →
SAE J404 6150
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between GOST 14959 50HFA and SAE J404 6150?
SAE J404 6150 specifies P, S which are not specified for GOST 14959 50HFA.
Can GOST 14959 50HFA be substituted with SAE J404 6150?
GOST 14959 50HFA 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.