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DIN 17200 40NiCrMo6 vs GB/T 3077 12Cr2Ni4A

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

DIN 17200 40NiCrMo6 (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 40NiCrMo6 is typically used for heavy forgings, crankshafts, high strength components, while GB/T 3077 12Cr2Ni4A is commonly used for used for gears, shafts, pinions, aircraft parts, heavy-duty bearings, and transmission components.. DIN 17200 40NiCrMo6 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 40NiCrMo6 vs GB/T 3077 12Cr2Ni4A is a 52.6% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With DIN 17200 40NiCrMo6:
UNI 11234 100Cr6 GOST 4543 12HN3A NF A35-565 100C6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
52.6%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property DIN 17200 40NiCrMo6 GB/T 3077 12Cr2Ni4A
Standard DIN 17200:1986 GB/T 3077-2015
Category Alloy Steel Alloy Steel
C (%) 0.36–0.44 0.10-0.15
Mn (%) 0.50–0.80 0.30-0.60
Cr (%) 0.60–1.00 1.25-1.65
Mo (%) 0.15–0.30 Not specified
Ni (%) 1.30–1.70 3.25-3.75
Si (%) Not specified 0.17-0.37
P (%) Not specified 0.025 max
S (%) Not specified 0.025 max
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 40NiCrMo6 GB/T 3077 12Cr2Ni4A
Tensile Strength 900–1100 MPa 980-1180 MPa
Yield Strength ≥720 MPa 785-980 MPa
Elongation ≥12% 10-14%
Hardness Not specified 58-62 HRC (case)
Typical Applications
DIN 17200 40NiCrMo6
Heavy forgings, crankshafts, high strength components
GB/T 3077 12Cr2Ni4A
Used for gears, shafts, pinions, aircraft parts, heavy-duty bearings, and transmission components.
Key Differences
Can DIN 17200 40NiCrMo6 Be Substituted With GB/T 3077 12Cr2Ni4A?
DIN 17200 40NiCrMo6 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.
Forms & Sizes Available on M-EX
DIN 17200 40NiCrMo6
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5500–6900 mm (216.54–271.65 in)
GB/T 3077 12Cr2Ni4A
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5000–6600 mm (196.85–259.84 in)
On M-EX Right Now
DIN 17200 40NiCrMo6
2 active listings and RFQs →
GB/T 3077 12Cr2Ni4A
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between DIN 17200 40NiCrMo6 and GB/T 3077 12Cr2Ni4A?
DIN 17200 40NiCrMo6 specifies Mo which is not specified for GB/T 3077 12Cr2Ni4A. GB/T 3077 12Cr2Ni4A specifies Si, P, S which are not specified for DIN 17200 40NiCrMo6.
Can DIN 17200 40NiCrMo6 be substituted with GB/T 3077 12Cr2Ni4A?
DIN 17200 40NiCrMo6 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.