P690QL1 and P690QL2 boiler steel plate
Source:Yusheng steel
Weldable fine grain steel P690QL1 and P690QL2 mainly be rolling as steel plate and sheet for building pressure vessels and
boilers.Steel plate P690QL1 shall be done impacting test with low temperature properties down to minus 40 centi degree.
And steel plate P690QL2 shall be done impacting test with low temperature properties down to minus 60 centi degree.Both
of these two pressure vessel steel grades P690QL1 and P690QL2 have to be heat treatment under Quenching and Tempering
when rolling.
The steels of P690QL1 and P690QL2 specified in this standard shall be suitable for welding processes in current using,the
mill shall provide the end user with the data on suitable welding conditions determined on the basis of weld procedure tests
if customers requested.About these higher steel grades for P690QL1 and P690QL2, we would submit inquiries with customers
technical requirements together to technical department in our mill for final reviewing,and then offer our official quotation w
hen all technicals are Ok for us.
Mechanical properties for P690QL2 pressure vessel steel plate:
Yield strength (Mpa) |
Tensile strength (Mpa) | |||
t≤50 |
50<t≤100 |
100<t |
t≤100 |
100<t |
690 |
670 |
630 |
770-940 |
720-900 |
Chemical composition of cast analysis for P690QL2 boiler steel plate (Max %):
C |
Si |
Mn |
P |
S |
N |
B |
Cr |
0.20 |
0.80 |
1.70 |
0.020 |
0.010 |
0.015 |
0.005 |
1.50 |
Mo |
Cu |
Nb |
Ni |
Ti |
V |
Zr |
|
0.70 |
0.30 |
0.06 |
2.50 |
0.05 |
0.12 |
0.15 |
|
- ASTM A515 Gr.70|ASME SA515 Gr.70N
- ASTM A515 Gr.65|ASME SA515 Gr.65|A515Gr 65N
- A515 Gr.60|SA515 Gr.60|A515 Gr.60N
- A515Gr60,A515 Grade 65,A515 Gr.70 boiler steel plate
- SA387 Grade 11 CL 1 SA387 Grade 11 CL 2 A387 Grade 11 CL1 A387 Grade 11 CL2
- SA387 Grade 12 CL 1 SA387 Grade 12 CL 2 A387 Grade 12 CL1 A387 Grade 12 CL2