High strength low alloy structural steel Q420

Product Name: High-strength low-alloy structural steel

Grade: Q420

Specifications: Thick T: 1.5 ~ 24 W W :800-1100 length L: C

Executive Standard: GB/T1591-2008

Product Scope:

High strength, overall performance, good weldability and low temperature impact toughness for structural parts and welding manufacturing vehicles, chemical equipment, pipe, structural engineering, construction steel, machinery and other substrates.

Tensile strength: (σb / MPa)

520 ~ 680

Key Features:

Has high strength, good fatigue resistance; high toughness and low brittle transition temperature; good cold formability and weldability; has good corrosion resistance and engage in some wear. High strength, especially in the normalized or normalized and tempered condition have higher mechanical properties.

Elongation: (δ5 /%)

Level / δ5 /%

A / ≧ 18

B / ≧ 18

C / ≧ 19

D / ≧ 19

E / ≧ 19