Related Material — 55.6% match
based on chemical composition and mechanical property overlap.
DIN 17200 30NiCr11 (DIN 17200:1986) and GB/T 3077 12Cr2Ni4A (GB/T 3077-2015) are both steel grades.
Both fall under the Alloy Steel category.
DIN 17200 30NiCr11 is typically used for used in heavy-duty gears, crankshafts, aircraft parts, shafts, and connecting rods., while GB/T 3077 12Cr2Ni4A is commonly used for used for gears, shafts, pinions, aircraft parts, heavy-duty bearings, and transmission components..
DIN 17200 30NiCr11 is defined under Deutsches Institut fur Normung (DIN), originating from Germany, while GB/T 3077 12Cr2Ni4A is defined under Guobiao Standards (GB/T), originating from China.
As per chemical composition, DIN 17200 30NiCr11 vs GB/T 3077 12Cr2Ni4A is a 68.7% match.
As per mechanical properties, the match is 29.5%.
Combined, this makes them a related material overall at 55.6%.
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 30NiCr11
GB/T 3077 12Cr2Ni4A
Tensile Strength
900-1100 MPa
980-1180 MPa
Yield Strength
700 MPa min
785-980 MPa
Elongation
10-13%
10-14%
Hardness
260-320 HB
58-62 HRC (case)
Typical Applications
DIN 17200 30NiCr11
Used in heavy-duty gears, crankshafts, aircraft parts, shafts, and connecting rods.
GB/T 3077 12Cr2Ni4A
Used for gears, shafts, pinions, aircraft parts, heavy-duty bearings, and transmission components.
Can DIN 17200 30NiCr11 Be Substituted With GB/T 3077 12Cr2Ni4A?
DIN 17200 30NiCr11 and GB/T 3077 12Cr2Ni4A share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
What is the difference between DIN 17200 30NiCr11 and GB/T 3077 12Cr2Ni4A?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can DIN 17200 30NiCr11 be substituted with GB/T 3077 12Cr2Ni4A?
DIN 17200 30NiCr11 and GB/T 3077 12Cr2Ni4A share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.