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■ Overview
In European specificaitons EN10216-2,there are alloy seamless type pipes and tubes grades included 7CrWVMoNb9-6,7CrMoVTiB10-10,X11CrMo5,X11CrMo9-1,X10CrMoVNb9-1,X10CrWMoVNb9-2,X11CrMoWVNb9-1-1,X20CrMoV11-1.These tubes and pipes shall be passed by hydrostatic test or electromagnetic test for leak tightness.
■ Full Data
Technical Requirements & Additional Services:
♦ Normalized Heat treatment at Temp.980-1020 Deg.C and Tempered treatment at 730-770 Deg.C
♦ Flattening test according to EN 10233
♦ Ring Tensile test comply to EN 10237
♦ Normalized Heat treatment at Temp.980-1020 Deg.C and Tempered treatment at 730-770 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 7CrMoVTiB10-10 boiler steel pipes:
|
7CrMoVTiB10-10 |
||||
|
Yield strength (≥Mpa) |
T≤16 |
16<T≤40 |
40<T≤60 |
60<T≤100 |
|
450 |
430 |
430 |
- |
|
|
Tensile strength (≥Mpa) |
565-840 |
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►Chemical composition for 7CrMoVTiB10-10 Boiler steel pipes (Heat Analysis Max%)
|
Main chemical elements composition of 7CrMoVTiB10-10 |
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|
C |
Si |
Mn |
P |
S |
Cr |
|
0.05-0.10 |
0.15-0.45 |
0.30-0.70 |
0.020 |
0.010 |
2.2-2.6 |
|
Mo |
Alt |
Ti |
V |
N |
B |
|
0.9-1.1 |
0.020 |
0.05-0.10 |
0.2-0.3 |
0.01 |
0.0015-0.007 |
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