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Pressure vessel steel plate P690QL1,boiler steel plate P690QL1
Source:Xin Steel Industry   Date:2012/11/15

High tensile strength boiler steel plate p690ql1,pressure vessel steel plate P690QL1 are under steel standard EN 10028-6,pressure vessels steel plate P690QL1 belongs to Weldable fine grain steel and shall be done Quenched and Tempered heat treatment when rolling.Owning to these boiler steel plates P690QL1rolled under higher strength level,sometimes cold cracking can occur with increasing steel plates'thickness and strength,so our mill would provide our end users with the data on suitable welding conditions.


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Other relative pressure vessel steel grades under steel standard EN 10028 are p355q steel plate,p355qh steel plate,p355ql1boiler steel plate,p460q pressure vessel steel plate,p460qh steel plate,p460ql1boiler steel plate,p355ql2 pressure vessel steel plate,p460ql2 steel sheet,p500q steel plate,p500qh boiler steel plate,p500ql1 pressure vessel steel plate,p500ql2 steel plate,p690q steel plate,p690qh boiler steel plate,p690ql steel plate,p690ql2 pressure vessel steel plate,p355m steel plate,p355ml1 boiler steel plate,p355ml2 steel plate,p420m boiler steel plate.


Chemical composition of Ladle analysis for P690QL1 pressure vessel steel plate (Max %):

 

Steel Grade

The Main Elements in rolling P690QL1 pressure vessel steel plates

C

Si

Mn

P

S

N

B

P690QL1

0.20

0.80

1.70

0.020

0.010

0.015

0.005

Mo

Cu

Nb

Ni

Ti

V

Cr

0.70

0.3

0.06

2.50

0.05

0.12

1.50