High pressure steel pipe
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QCCO was approved as a member of “China Association for Contracting Projects Abroad “and granted a membership certificate on Sep 28,2005; “Credibility Rating AAA certificate in Foreign Trade” was granted to QCCO by China Shippers’ Association
High pressure steel pipe
Main Material:
Alloy:P5,P9,P11,P12,P22,P91,P92,12Cr1MoV,15CrMo,1Cr5Mo,10CrMo910,13CrMoV44-5 and so on
Carbons:A53GrB,A106GrB,10#,20#,45#,16Mn,16MnR,A333Gr6
Stainless:304,316,321,
API 5L:Gr.B,X42,X52,X60,X65,X70 and so on
API 5CT:J55
1) Pipe Diameter: 8-1219 2) Thickness: 0.5mm-80mm
3) Steel grade: P1 P2 P5 P11 P12 P91
4) Brand:TPCO,BAOSTEEL,POHANG,TISCO.
5) Surface: oiled or black painted to prevent rust
6) Marking: As per customer's requirement
7) Packing: Bundles or seaworthy wooden cases
|
Item |
Seamless Steel Pipe /Tube |
| Material | P5;P9;P11;P22 |
|
OD |
21.3-406.4mm (1/2”-16”) |
|
WT |
2-45mm |
|
Length |
SRL or DRL or Fixed length according to your request. |
|
Tolerance |
OD: +/- 1% WT: +12.5% /- 10% |
|
Surface |
1.Black varnished or oiled 2.Marks |
|
End |
1.Less than 2”: plain ends, with plastic caps 2.More than 2”: bevelled ends, with plastic caps. |
|
Packing: |
1.In hexagon bundle 2.Plastic sheet covered. |
|
|
|
Chemical properties (%) |
|||||||
|
Material |
C |
Si |
Mn |
P |
S |
Mo |
Cr |
|
|
% |
% |
% |
% |
max |
% |
max |
|
A 335 Grade P1 |
0,10 - 0,20 |
0,10 - 0,50 |
0,30 - 0,80 |
0,025 |
0,025 |
0,44-0,65
|
|
|
A 335 Grade P5 |
max. 0,15 |
max. 0,50 |
0,30 - 0,60 |
0,025 |
0,025 |
0,45-0,65 |
4,00-6,00
|
|
A 335 Grade P11 |
0,05 - 0,15 |
0,50 - 1,00 |
0,30 - 0,60 |
0,025 |
0,025 |
0,44-0,65 |
1,00-1,50
|
|
A 335 Grade P12 |
0,05 - 0,15 |
max. 0,50 |
0,30 - 0,61 |
0,025 |
0,025 |
0,44-0,65 |
0,80-1,25 |
|
A 335 Grade P22 |
0,05 - 0,15 |
max. 0,50 |
0,30 - 0,60 |
0,025 |
0,025 |
0,87-1,13 |
1,90-2,60 |
Material:20G 20MnG 15MoG、20MoG、12CrMoG、15CrMoG、12Cr2MoG、12Cr1MoVG
Use:Mainly used in power stations and nuclear power plant boiler high temperature, high pressure transmission fluid collection tank and piping.
| standard | trademark | tensile strength（MPa） | yield strength（MPa） | tensile strentch（％） | hardness |
| GB3087 | 10 | 335～475 | ≥195 | ≥24 | / |
| 20 | 410～550 | ≥245 | ≥20 | / | |
| GB5310 | 20G | 410～550 | ≥245 | ≥24 | / |
| 20MnG | ≥415 | ≥240 | ≥22 | / | |
| 25MnG | ≥485 | ≥275 | ≥20 | / | |
| 15CrMoG | 440～640 | ≥235 | ≥21 | / | |
| 12Cr2MoG | 450～600 | ≥280 | ≥20 | / | |
| 12Cr1MoVG | 470～640 | ≥255 | ≥21 | / | |
| 12Cr2MoWVTiB | 540～735 | ≥345 | ≥18 | / | |
| 10Cr9Mo1VNb | ≥585 | ≥415 | ≥20 | / |
