bebon steel

Tel:0086-0371-86151827

E-mail:sales7@bebonchina.com
Contact us
  • : 0086-371-86151627 0086-371-86151827
  • : 0086-371-86011881
  • : sales7@bebonchina.com
  • : sales7@bebonchina.com
  • : Taya bebon
Products
You are here : BEBON STEEL > news > Views - WQ690D, WH80Q high yield steel plate

WQ690D, WH80Q high yield steel plate

The technical conditions apply to plates of WQ690D with thickness not more than 80mm. (8mm-80mm)

The dimension, shape, weight and permissible deviation shall meet the requirements of GB/T709
Thickness tolerance: +/-1.52mm
Flatness: 4mm/m
Surface shot blasting or peeled.
Technical conditions
Chemical composition (Ladle analysis)
The chemical composition of plates shall be accordance with the following table 1.
Steel making process: EAF+LF/VD
Carbon equivalent (CEq)
Carbon equivalent shall be not more than 0.60% for plates of WQ690D.
Carbon equivalent shall be calculated as follows:
CEq=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15 (%)

WQ690D Chemical composition (Ladle analysis)

C

Si

Mn

P

S

Mo

Nb

B

Ni

Cr

Ti

V

≤0.16

≤0.50

≤1.60

≤0.020

≤0.010

≤0.60

≤0.07

≤0.003

≤1.20

≤0.80

≤0.03

≤0.08

WQ690D Mechanical properties:

Size mm

Rp0.2

Rm

A

Akv (longitudinal)

Bend

MPa

MPa

%

J

≤40

≥690

≥800

≥14

-20℃

≥34

d=3a

>40-80

≥670