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

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

GB/T 3077 40CrNi (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 40CrNi is typically used for hot-rolled or forged structural alloy steel bars, while EN 10028-2 10CrMo9-10 is commonly used for flat products for pressure purposes. GB/T 3077 40CrNi 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 40CrNi vs EN 10028-2 10CrMo9-10 is a 55.8% 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 40CrNi:
UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
55.8%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property GB/T 3077 40CrNi 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 (%) 0.45-0.75 2.00-2.50
Ni (%) 1.00-1.40 Not specified
P (%) <=0.030 <=0.020
S (%) <=0.030 <=0.010
Cu (%) <=0.30 <=0.30
N (%) Not specified <=0.012
Mo (%) Not specified 0.90-1.10
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 40CrNi EN 10028-2 10CrMo9-10
Tensile Strength >=980 MPa 480-630 MPa
Yield Strength >=785 MPa >=310 MPa
Elongation >=10% >=18%
Hardness <=241 HB Not specified
Condition Quenched and tempered, test sample 25 mm; hardness is for bars delivered annealed or high temperature tempered 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 40CrNi
Hot-rolled or forged structural alloy steel bars
EN 10028-2 10CrMo9-10
Flat products for pressure purposes
Key Differences
Can GB/T 3077 40CrNi Be Substituted With EN 10028-2 10CrMo9-10?
GB/T 3077 40CrNi 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.
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GB/T 3077 40CrNi
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EN 10028-2 10CrMo9-10
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Frequently Asked Questions
What is the difference between GB/T 3077 40CrNi and EN 10028-2 10CrMo9-10?
GB/T 3077 40CrNi specifies Ni which is not specified for EN 10028-2 10CrMo9-10. EN 10028-2 10CrMo9-10 specifies N, Mo which are not specified for GB/T 3077 40CrNi.
Can GB/T 3077 40CrNi be substituted with EN 10028-2 10CrMo9-10?
GB/T 3077 40CrNi 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.