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
EN10216-3 QT seamless steel tubes pipes P620QH
Source:Xin Steel Industry Date:2018/11/14
EN10216-3 QT seamless steel tubes pipes P620QH
Alloy fine grain steel tubes for pressure purposes with Quenched and Tempered in European standard EN 10216-3
Relative steel grades:P275NL1,P275NL2,P355N,P355NH,P355NL1,P355NL2,P460N,P460NH,
P460NL1,P460NL2,P620Q,P620QH,P620QL,P690Q,P690QH,P690QL1,P690QL2.
Main application:Non-alloy and alloy high temperature seamless steel pipes more used for building boilers and pressure vessels’parts,power plants.P620QH low alloy seamless steel pipes have to be done Quenching and Tempering heat treatment.
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 and Certificates:Low temperature impacting test,NDE (Non-Destructive Testing),Ultrasonic examination,Heat treatment,Bending test,Eddy test,Hydrostatic test,High tension test.Mill test certificates with EN 10204 3.1 OR 3.2 approved by third party inspection TUV,LR,ABS,SGS,PED,etc.
Want to get more information about seamless steel pipes,please CONTACT XINSTEEL NOW
►Chemical composition for P620QH steel tubes (Cast Analysis Max%)
|
Main chemical elements composition of P620QH | ||||||||
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Ni | |
|
0.20 |
0.60 |
1.00-1.70 |
0.025 |
0.020 |
0.30 |
0.10 |
0.80 | |
|
Al total min. |
Cu |
N |
Nb |
Ti |
V |
Nb+Ti+V | ||
|
0.020 |
0.30 |
0.020 |
0.05 |
0.040 |
0.20 |
0.22 | ||
►Mechnical property for P620QH pressure vessel steel pipes:
|
Yield strength (≥Mpa) Wall Thickness |
Tensile strength (≥Mpa) Wall Thickness | |||||||
|
T≤20 |
20<T≤40 |
40<T≤50 |
50<T≤65 |
65<T≤80 |
80<T≤100 |
T≤20 |
20<T≤40 |
40<T≤65 |
|
620 |
580 |
540 |
500 |
- |
- |
740-930 |
690- 860 |
630- 800 |
XINSTEEL owned thousands tons stock of high quality seamless steel tubes pipes with steel grades in EN 10216-2 and EN10216-3.P620QH quenched and tempered seamless pipes,P620Q seamless steel tubes,P620QL low temperature used alloy seamless steel pipes original from Chinese national owned steel mills TPCO,BAOSTEEL,etc.