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GB/T 3077 38CrMoAl vs GB/T 3077 35CrMo

Close Alternative — 77.8% match based on chemical composition and mechanical property overlap.

GB/T 3077 38CrMoAl (GB/T 3077:2015) and GB/T 3077 35CrMo (GB/T 3077:2015) are both steel grades. Both fall under the Alloy Steel category. GB/T 3077 38CrMoAl is typically used for hot-rolled or forged structural alloy steel bars, while GB/T 3077 35CrMo is commonly used for used for connecting rods, gears, shafts, bolts, spindles, and pressure vessel parts.. GB/T 3077 38CrMoAl is defined under Guobiao Standards (GB/T), originating from China, while GB/T 3077 35CrMo is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, GB/T 3077 38CrMoAl vs GB/T 3077 35CrMo is a 79.2% match. As per mechanical properties, the match is 75%. Combined, this makes them a close alternative overall at 77.8%.

Frequently Compared With GB/T 3077 38CrMoAl:
IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 7) 10Mo6H IS 4367 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
79.2%
MECHANICAL MATCH
75%
OVERALL
77.8%
Specifications
Property GB/T 3077 38CrMoAl GB/T 3077 35CrMo
Standard GB/T 3077:2015 GB/T 3077:2015
Category Alloy Steel Alloy Steel
C (%) 0.35-0.42 0.32-0.40
Si (%) 0.20-0.45 0.17-0.37
Mn (%) 0.30-0.60 0.40-0.70
Cr (%) 1.35-1.65 0.80-1.10
Mo (%) 0.15-0.25 0.15-0.25
Al (%) 0.70-1.10 Not specified
P (%) <=0.030 <=0.030
S (%) <=0.030 <=0.030
Cu (%) <=0.30 <=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 38CrMoAl GB/T 3077 35CrMo
Tensile Strength >=980 MPa >=980 MPa
Yield Strength >=835 MPa >=835 MPa
Elongation >=14% >=12%
Hardness <=229 HB <=229 HB
Condition Quenched and tempered, test sample 30 mm; hardness is for bars delivered annealed or high temperature tempered Quenched and tempered, test sample 25 mm; hardness is for bars delivered annealed or high temperature tempered
Typical Applications
GB/T 3077 38CrMoAl
Hot-rolled or forged structural alloy steel bars
GB/T 3077 35CrMo
Used for connecting rods, gears, shafts, bolts, spindles, and pressure vessel parts.
Key Differences
Can GB/T 3077 38CrMoAl Be Substituted With GB/T 3077 35CrMo?
GB/T 3077 38CrMoAl and GB/T 3077 35CrMo are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
Forms & Sizes Available on M-EX
GB/T 3077 38CrMoAl
No active listings currently.
GB/T 3077 35CrMo
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 6400–6900 mm (251.97–271.65 in)
On M-EX Right Now
GB/T 3077 38CrMoAl
0 active listings and RFQs →
GB/T 3077 35CrMo
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GB/T 3077 38CrMoAl and GB/T 3077 35CrMo?
GB/T 3077 38CrMoAl specifies Al which is not specified for GB/T 3077 35CrMo.
Can GB/T 3077 38CrMoAl be substituted with GB/T 3077 35CrMo?
GB/T 3077 38CrMoAl and GB/T 3077 35CrMo are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.