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Pressure vessel alloy seamless steel tubes pipes 25CrMo4
Source:Xin Steel Industry Date:2018/10/15
Pressure vessel alloy seamless steel tubes pipes 25CrMo4
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.25CrMo4 alloy seamless steel pipes have to be done QT Quenching and Tempering heat treatment at temperature 860-900℃.
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.
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►Mechnical property for 25CrMo4 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 |
|
345 |
345 |
345 |
- |
540-690 |
18 |
15 |
►Chemical composition for 25CrMo4 steel tubes (Cast Analysis Max%)
|
Main chemical elements composition of 25CrMo4 | |||||||
|
C |
Si |
Mn |
P |
S |
Cr |
V | |
|
0.22-0.29 |
0.40 |
0.60-0.90 |
0.025 |
0.010 |
0.90- 1.20 |
- | |
|
Mo |
Ni |
Al total |
Cu |
Nb |
Ti |
B | |
|
0.15-0.30 |
0.30 |
0.040 |
0.30 |
- |
- |
- | |
XINSTEEL INDUSTRIAL CO.,LTD offering high quality of seamless steel pipes 25CrMo4 from chinese national owned steel mills TPCO,BAOSTEEL,etc.,and owned many different diameters stock pipes for sale anytime.