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SAE J404 4120 vs DIN 17210 20CrMo5

Close Alternative — 82.1% match based on chemical composition and mechanical property overlap.

SAE J404 4120 (SAE J404:2000) and DIN 17210 20CrMo5 (DIN 17210:1986) are both steel grades. Both fall under the Alloy Steel category. SAE J404 4120 is typically used for chemistry-only alloy steel grade; see the composition notes for product scope, while DIN 17210 20CrMo5 is commonly used for used in gears, shafts, pinions, camshafts, and transmission components.. SAE J404 4120 is defined under SAE International, originating from United States, while DIN 17210 20CrMo5 is defined under Deutsches Institut fur Normung (DIN), originating from Germany.

As per chemical composition, SAE J404 4120 vs DIN 17210 20CrMo5 is a 82.1% 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 82.1%.

Frequently Compared With SAE J404 4120:
IS 1570 (Part 4) 105Cr5 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10 IS 1570 (Part 7) 12Cr2Mo5V2H NF A35-565 100C6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 7) 10Mo6H IS 11169 (Part 1) 10Ni5Cr4 IS 4367 07Cr4Mo6
Match Breakdown
CHEMISTRY MATCH
82.1%
MECHANICAL MATCH
No shared data
OVERALL
82.1%
Specifications
Property SAE J404 4120 DIN 17210 20CrMo5
Standard SAE J404:2000 DIN 17210:1986
Category Alloy Steel Alloy Steel
C (%) 0.18-0.23 0.18-0.23
Cr (%) 0.40-0.60 1.10-1.40
Mn (%) 0.90-1.20 0.90-1.20
Mo (%) 0.13-0.20 0.20-0.30
P (%) <=0.030 <=0.035
S (%) <=0.040 <=0.035
Si (%) 0.15-0.35 0.15-0.35
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 4120 DIN 17210 20CrMo5
Tensile Strength Not specified 800-1000 MPa
Yield Strength Not specified 600 MPa min
Elongation Not specified 10-14%
Hardness Not specified 248-302 HB
Typical Applications
SAE J404 4120
Chemistry-only alloy steel grade; see the composition notes for product scope
DIN 17210 20CrMo5
Used in gears, shafts, pinions, camshafts, and transmission components.
Can SAE J404 4120 Be Substituted With DIN 17210 20CrMo5?
SAE J404 4120 and DIN 17210 20CrMo5 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
SAE J404 4120
No active listings currently.
DIN 17210 20CrMo5
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5800–6700 mm (228.35–263.78 in)
On M-EX Right Now
SAE J404 4120
0 active listings and RFQs →
DIN 17210 20CrMo5
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between SAE J404 4120 and DIN 17210 20CrMo5?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can SAE J404 4120 be substituted with DIN 17210 20CrMo5?
SAE J404 4120 and DIN 17210 20CrMo5 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.