Home > Steel Standards
- High strength steel plate S690QL,Q690E,STRENX 700 E and Weldox 700E
- Comparasion with EN 10025 steel plate S355N and steel plate S355J0
- Comparasion with ASTM A515 and A516 steel plate
- How to choose pipe grades S235 S275 S355 from EN 10210 Specification
- How to choose steel grades from shipbuilding steel plate
- Introduction of Corten steel plate in different specifications
High temperature alloy seamless steel tubes pipes 7CrWVMoNb9-6
Source:Xin Steel Industry Date:2018/09/03
High temperature alloy seamless steel tubes pipes 7CrWVMoNb9-6
Relative steel grades:20MnNb6,16Mo3,8MoB5-4,14MoV6-3,10CrMo5-5,13CrMo4-5,10CrMo9-10,
11CrMo9-10,25CrMo4,20CrMoV13-5-5,15NiCuMoNb5-6-4,7CrWVMoNb9-6,7CrMoVTiB10-10.
Main application:Non-alloy and alloy high temperature seamless steel pipes more used for building boilers and pressure vessels’parts.7CrWVMoNb9-6 alloy seamless steel pipes have to be done NT Normalizing plus Tempering heat treatment at temperature 1040-1080℃.
Rolling range:A) Diameter:1/2’’ to 36’’ B) Schedule:SCH20-SCHXXS C) O.D.:13.7MM-914.4MM D) Wall Thickness: 2.11MM-60MM E) Length: Max.17MM
Test: Low temperature impacting test,Ultrasonic examination,Heat treatment,Bending test,Eddy test,Hydrostatic test,High tension test.
Want to get more information about Abrasion resistant steel plate,please CONTACT XINSTEEL NOW
►Mechnical property for 7CrWVMoNb9-6 pressure vessel steel pipes:
|
Yield strength (≥Mpa) |
Tensile strength (≥Mpa) |
Elongation A min. % | ||||
|
T≤16 |
16<T≤40 |
40<T≤60 |
60<T≤100 |
|
Longitudinal |
Transverse |
|
400 |
400 |
400 |
- |
510-740 |
20 |
18 |
►Chemical composition for 7CrWVMoNb9-6 steel tubes (Cast Analysis Max%)
|
Main chemical elements composition of 7CrWVMoNb9-6 | |||||||
|
C |
Si |
Mn |
P |
S |
Cr |
V | |
|
0.04-0.10 |
0.50 |
0.10-0.60 |
0.030 |
0.010 |
1.90- 2.60 |
0.20-0.30 | |
|
Mo |
N |
Al total |
W |
Nb |
Ti |
B | |
|
0.05-0.30 |
0.015 |
0.030 |
1.45- 1.75 |
0.02- 0.08 |
0.005- 0.060 |
0.001-0.006 | |
XINSTEEL INDUSTRIAL CO.,LTD offering high quality of seamless steel pipes 7CrWVMoNb9-6 from chinese national owned steel mills TPCO,BAOSTEEL,etc.,and owned many different diameters stock pipes for sale anytime.