Close Alternative — 71.3% match
based on chemical composition and mechanical property overlap.
GOST 4543 40HNMA (GOST 4543-2016) and DIN 17200 40NiCrMo6 (DIN 17200:1986) are both steel grades.
Both fall under the Alloy Steel category.
GOST 4543 40HNMA is typically used for used for gears, shafts, spindles, connecting rods, and aerospace parts., while DIN 17200 40NiCrMo6 is commonly used for heavy forgings, crankshafts, high strength components.
DIN 17200 40NiCrMo6 is defined under Deutsches Institut fur Normung (DIN) (Germany).
As per chemical composition, GOST 4543 40HNMA vs DIN 17200 40NiCrMo6 is a 90.2% match.
As per mechanical properties, the match is 33.3%.
Combined, this makes them a close alternative overall at 71.3%.
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 40HNMA
DIN 17200 40NiCrMo6
Tensile Strength
930-1180 MPa
900–1100 MPa
Yield Strength
785 MPa min
≥720 MPa
Elongation
12% min
≥12%
Hardness
269-341 HB
Not specified
Typical Applications
GOST 4543 40HNMA
Used for gears, shafts, spindles, connecting rods, and aerospace parts.
DIN 17200 40NiCrMo6
Heavy forgings, crankshafts, high strength components
Key Differences
GOST 4543 40HNMA specifies Si which is not specified for DIN 17200 40NiCrMo6.
Can GOST 4543 40HNMA Be Substituted With DIN 17200 40NiCrMo6?
GOST 4543 40HNMA and DIN 17200 40NiCrMo6 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 GOST 4543 40HNMA and DIN 17200 40NiCrMo6?
GOST 4543 40HNMA specifies Si which is not specified for DIN 17200 40NiCrMo6.
Can GOST 4543 40HNMA be substituted with DIN 17200 40NiCrMo6?
GOST 4543 40HNMA and DIN 17200 40NiCrMo6 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.