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GB/T 3077 20CrMo vs EN 10028-2 10CrMo9-10

Minimal Match — 42.9% match based on chemical composition and mechanical property overlap.

GB/T 3077 20CrMo (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 20CrMo is typically used for used for gears, shafts, axles, transmission parts, fasteners, and machine components., while EN 10028-2 10CrMo9-10 is commonly used for flat products for pressure purposes. GB/T 3077 20CrMo 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 20CrMo vs EN 10028-2 10CrMo9-10 is a 64.4% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 42.9%.

Frequently Compared With GB/T 3077 20CrMo:
UNI 11234 100Cr6 GB/T 3077 12Cr2Ni4A GOST 4543 12HN3A NF A35-565 100C6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
64.4%
MECHANICAL MATCH
0%
OVERALL
42.9%
Specifications
Property GB/T 3077 20CrMo EN 10028-2 10CrMo9-10
Standard GB/T 3077:2015 EN 10028-2:2017
Category Alloy Steel Alloy Steel
C (%) 0.17-0.24 0.08-0.14
Si (%) 0.17-0.37 <=0.50
Mn (%) 0.40-0.70 0.40-0.80
Cr (%) 0.80-1.10 2.00-2.50
Mo (%) 0.15-0.25 0.90-1.10
P (%) <=0.030 <=0.020
S (%) <=0.030 <=0.010
Cu (%) <=0.30 <=0.30
N (%) Not specified <=0.012
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 20CrMo EN 10028-2 10CrMo9-10
Tensile Strength >=885 MPa 480-630 MPa
Yield Strength >=685 MPa >=310 MPa
Elongation >=12% >=18%
Hardness <=197 HB Not specified
Condition Quenched and tempered, test sample 15 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 20CrMo
Used for gears, shafts, axles, transmission parts, fasteners, and machine components.
EN 10028-2 10CrMo9-10
Flat products for pressure purposes
Key Differences
Can GB/T 3077 20CrMo Be Substituted With EN 10028-2 10CrMo9-10?
GB/T 3077 20CrMo 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 20CrMo
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 4800–5200 mm (188.98–204.72 in)
EN 10028-2 10CrMo9-10
No active listings currently.
On M-EX Right Now
GB/T 3077 20CrMo
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 20CrMo and EN 10028-2 10CrMo9-10?
EN 10028-2 10CrMo9-10 specifies N which is not specified for GB/T 3077 20CrMo.
Can GB/T 3077 20CrMo be substituted with EN 10028-2 10CrMo9-10?
GB/T 3077 20CrMo 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.