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Quenched and Tempered high strength seamless steel tubes pipes P690Q
Source:Xin Steel Industry Date:2018/11/14
Quenched and Tempered high strength seamless steel tubes pipes P690Q
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.P690Q high strength 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.
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►Chemical composition for P690Q steel tubes (Cast Analysis Max%)
|
Main chemical elements composition of P690Q | ||||||||
|
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 P690Q 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 |
65<T≤ 100 |
|
690 |
650 |
615 |
580 |
540 |
500 |
770-960 |
720- 900 |
670- 850 |
620- 800 |
XINSTEEL owned thousands tons stock of high quality seamless steel tubes pipes with steel grades in EN 10216-2 and EN10216-3.P690Q quenched and tempered seamless pipes,P690QH high strength seamless steel tubes,P690QL1 P690QL2 low temperature used alloy seamless steel pipes original from Chinese national owned steel mills TPCO,BAOSTEEL,etc.