Carbon steel Q215

Product Name: carbon steel

Grade : Q215

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

Standard : GB/T700-2006

Product Scope:

With ductility, toughness , cold , good weldability, suitable for engineering machinery, construction machinery, agricultural machinery and other industries and the general structure stampings and welded pipe and so on.

Mechanical properties :

Yield strength (N/mm2)

≥ 215 (a ≦ 16mm), ≥ 205 (a> 16-40mm)

≥ 195 (a> 40-60mm), ≥ 185 (a> 60-100mm)

≥ 175 (a> 100-150mm), ≥ 165 (a> 150-200mm)

Tensile strength (σb / MPa): more than 355

Elongation (δ5 /%): more than 13%

≥ 31 (a ≤ 40mm), ≥ 30 (a> 40-60mm)

≥ 29 (a> 60-100mm), ≥ 27 (a> 100-150mm)

≥ 26 (a> 150-200mm)

Wherein a thickness or diameter of the steel .

Cold bending properties:

180 ° cold bending test

d = 0.5a ( vertical ) d = a ( transverse ) (B = 2a: ≤ 60mm),

d = 1.5a ( vertical ) d = 2a ( lateral ) (B = 2a:> 60 ~ 100mm)

When steel thickness or diameter greater than 100mm, bending test is determined by mutual agreement .

Where d is the diameter of the apex , B is the specimen width , a thickness or diameter of the specimen .

Impact test :

(B grade )

Temperature : +20 ℃

V- impact energy ( vertical ) Ak / J: ≥ 27