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GB/T 3077 40CrNiMoA vs EN 10028-2 10CrMo9-10

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

GB/T 3077 40CrNiMoA (GB/T 3077-2015) and EN 10028-2 10CrMo9-10 (EN 10028-2:2017) are both steel grades. Both fall under the Alloy Steel category. GB/T 3077 40CrNiMoA is typically used for used for crankshafts, turbine shafts, heavy-duty gears, aircraft landing parts, bolts, and pressure components., while EN 10028-2 10CrMo9-10 is commonly used for flat products for pressure purposes. GB/T 3077 40CrNiMoA is defined under Guobiao Standards (GB/T), originating from China, while EN 10028-2 10CrMo9-10 is defined under European Standard (EN), originating from Europe.

As per chemical composition, GB/T 3077 40CrNiMoA vs EN 10028-2 10CrMo9-10 is a 54% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With GB/T 3077 40CrNiMoA:
GB/T 3077 12Cr2Ni4A UNI 11234 100Cr6 GOST 4543 12HN3A NF A35-565 100C6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10 IS 4367 07Cr4Mo6 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
54%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property GB/T 3077 40CrNiMoA EN 10028-2 10CrMo9-10
Standard GB/T 3077-2015 EN 10028-2:2017
Category Alloy Steel Alloy Steel
C (%) 0.37-0.44 0.08-0.14
Si (%) 0.17-0.37 <=0.50
Mn (%) 0.50-0.80 0.40-0.80
Cr (%) 0.60-0.90 2.00-2.50
Ni (%) 1.25-1.65 Not specified
Mo (%) 0.15-0.25 0.90-1.10
P (%) 0.025 max <=0.020
S (%) 0.025 max <=0.010
N (%) Not specified <=0.012
Cu (%) Not specified <=0.30
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property GB/T 3077 40CrNiMoA EN 10028-2 10CrMo9-10
Tensile Strength 1080-1280 MPa 480-630 MPa
Yield Strength 930-1080 MPa >=310 MPa
Elongation 10-14% >=18%
Hardness 30-38 HRC Not specified
Condition Not specified Usual delivery condition normalized and tempered (+NT), nominal thickness up to 16 mm; transverse direction, Yield Strength is ReH, Elongation is A
Typical Applications
GB/T 3077 40CrNiMoA
Used for crankshafts, turbine shafts, heavy-duty gears, aircraft landing parts, bolts, and pressure components.
EN 10028-2 10CrMo9-10
Flat products for pressure purposes
Key Differences
Can GB/T 3077 40CrNiMoA Be Substituted With EN 10028-2 10CrMo9-10?
GB/T 3077 40CrNiMoA and EN 10028-2 10CrMo9-10 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
GB/T 3077 40CrNiMoA
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 4200–7000 mm (165.35–275.59 in)
EN 10028-2 10CrMo9-10
No active listings currently.
On M-EX Right Now
GB/T 3077 40CrNiMoA
2 active listings and RFQs →
EN 10028-2 10CrMo9-10
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between GB/T 3077 40CrNiMoA and EN 10028-2 10CrMo9-10?
GB/T 3077 40CrNiMoA specifies Ni which is not specified for EN 10028-2 10CrMo9-10. EN 10028-2 10CrMo9-10 specifies N, Cu which are not specified for GB/T 3077 40CrNiMoA.
Can GB/T 3077 40CrNiMoA be substituted with EN 10028-2 10CrMo9-10?
GB/T 3077 40CrNiMoA and EN 10028-2 10CrMo9-10 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.