+86 371 55057610 
inquiry@xsteelplate.com
■ Overview
In European specificaitons EN10216-2,there are all seamless type pipes and tubes grades for high pressure boiler using as alloy steels grades 7CrWVMoNb9-6,7CrMoVTiB10-10,X11CrMo5,X11CrMo9-1,X10CrMoVNb9-1,X10CrWMoVNb9-2,X11CrMoWVNb9-1-1,X20CrMoV11-1.
■ Full Data
Technical Requirements & Additional Services:
♦ Normalized Heat treatment at Temp.1040-1080 Deg.C and Tempered treatment at 730-780 Deg.C
♦ Flattening test according to EN 10233
♦ Ring Tensile test comply to EN 10237
♦ Normalized Heat treatment at Temp.1040-1080 Deg.C and Tempered treatment at 730-780 Deg.C
♦ Flattening test according to EN 10233
♦ Ring Tensile test comply to EN 10237
♦ Drift expanding test comply to EN 10234
♦ Impacting test comply to EN 10045-1
♦ Issued Orginal Mill test certificate under EN10204 3.1/3.2 FORMAT
♦ Surface Protection:Black,Varnish,Hot Dip Galvanized,Coating with shop prime
♦ Impacting test comply to EN 10045-1
♦ Issued Orginal Mill test certificate under EN10204 3.1/3.2 FORMAT
♦ Surface Protection:Black,Varnish,Hot Dip Galvanized,Coating with shop prime
■ Techicals
►Mechnical property for 7CrWVMoNb9-6 boiler steel pipes:
|
7CrWVMoNb9-6 |
||||
|
Yield strength (≥Mpa) |
T≤16 |
16<T≤40 |
40<T≤60 |
60<T≤100 |
|
400 |
400 |
400 |
- |
|
|
Tensile strength (≥Mpa) |
510-740 |
|||
►Chemical composition for 7CrWVMoNb9-6 Boiler steel pipes (Heat Analysis Max%)
|
Main chemical elements composition of 7CrWVMoNb9-6 |
||||||
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
|
0.04-0.10 |
0.50 |
0.10-0.60 |
0.030 |
0.010 |
1.90-2.60 |
0.05-0.30 |
|
Alt |
Nb |
V |
N |
W |
B |
|
|
0.030 |
0.02-0.08 |
0.20-0.30 |
0.03 |
1.45-1.75 |
0.0005-0.006 |
|
Tel：+86 371 55057610 
Fax： +86 371 5505 7611