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Carbon Steel Grade Comparison Table

Grade

Country

Standard

Chemical Composition

Mechanical Properties

Grade 1010

USA

AISI/SAE

C: 0.08-0.13, Mn: 0.30-0.60

Tensile Strength: 380 MPa

Grade 1018

USA

AISI/SAE

C: 0.14-0.20, Mn: 0.60-0.90

Tensile Strength: 440 MPa

Grade 1020

USA

AISI/SAE

C: 0.18-0.23, Mn: 0.30-0.60

Tensile Strength: 450 MPa

Grade 1045

USA

AISI/SAE

C: 0.42-0.50, Mn: 0.60-0.90

Tensile Strength: 620 MPa

Grade S235JR

Europe

EN 10025

C: 0.17, Mn: 1.40, Si: 0.55

Yield Strength: 235 MPa

Grade S355J2

Europe

EN 10025

C: 0.22, Mn: 1.60, Si: 0.55

Yield Strength: 355 MPa

Grade Q235

China

GB/T 700

C: 0.14-0.22, Mn: 0.30-0.65

Yield Strength: 235 MPa

Grade Q345

China

GB/T 1591

C: 0.12-0.20, Mn: 1.00-1.60

Yield Strength: 345 MPa

Grade SS400

Japan

JIS G3101

C: 0.20, Mn: 1.40

Tensile Strength: 400 MPa

Grade SM490A

Japan

JIS G3106

C: 0.20, Mn: 1.60

Yield Strength: 285 MPa