Close Alternative — 83.8% match
based on chemical composition and mechanical property overlap.
DIN 17200 30CrMo4 (DIN 17200:1986) and SAE J404 4140 (SAE J404:2009) are both steel grades.
Both fall under the Alloy Steel category.
DIN 17200 30CrMo4 is typically used for high tensile tubes, pressure vessels, aircraft structures, while SAE J404 4140 is commonly used for gears, shafts, dies, bolts, crankshafts.
DIN 17200 30CrMo4 is defined under Deutsches Institut fur Normung (DIN), originating from Germany, while SAE J404 4140 is defined under SAE International, originating from United States.
As per chemical composition, DIN 17200 30CrMo4 vs SAE J404 4140 is a 83.8% 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 83.8%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
DIN 17200 30CrMo4
SAE J404 4140
Tensile Strength
700–850 MPa
Not specified
Yield Strength
≥520 MPa
Not specified
Elongation
≥16%
Not specified
Hardness
197–255 HB
Not specified
Typical Applications
DIN 17200 30CrMo4
High tensile tubes, pressure vessels, aircraft structures
SAE J404 4140
Gears, shafts, dies, bolts, crankshafts
Can DIN 17200 30CrMo4 Be Substituted With SAE J404 4140?
DIN 17200 30CrMo4 and SAE J404 4140 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.
What is the difference between DIN 17200 30CrMo4 and SAE J404 4140?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can DIN 17200 30CrMo4 be substituted with SAE J404 4140?
DIN 17200 30CrMo4 and SAE J404 4140 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.