1. Common Grades & Standards

GB: Q235B/C/D, Q355B/C/D/E, Q460C/D/E

EN: S235JR, S355JR, S355NL

ASTM: A36, A572 Gr.50

2. Typical Mechanical Properties

- Q235: Min Yield Strength 235 MPa, Tensile Strength 370–500 MPa, Min Elongation 26%, Min Impact Energy 27 J (20 °C)

- Q355: Min Yield Strength 355 MPa, Tensile Strength 470–630 MPa, Min Elongation 21%, Min Impact Energy 34 J (-20 °C)

- Q460: Min Yield Strength 460 MPa, Tensile Strength 570–720 MPa, Min Elongation 17%, Min Impact Energy 34 J (-20 °C)

- A36: Min Yield Strength 250 MPa, Tensile Strength 400–550 MPa, Min Elongation 20%

3. Chemical Composition (Max, wt%)

C ≤ 0.22, Si ≤ 0.55, Mn ≤ 1.70, P ≤ 0.035, S ≤ 0.035

4. Dimension Range

Thickness: 3 mm – 100 mm

Width: 1500 mm – 4200 mm

Length: 2000 mm – 12000 mm

Custom cutting and special sizes are acceptable.

5. Delivery Condition & Quality

Delivery state: Hot rolled, Normalized

Surface: Mill finish, shot blasted, anti-rust painted

Inspection: Standard dimensional and surface inspection; complete mill test certificates are supplied.