Aplicación: utilizado como el retenedor estructural para las paredes de petróleo, pozos de gas
Especificación: OD: 4 1/2 '' ~ 20 '' (114.3mm ~ 508mm)
WT: 0.205 '' ~ 0.635 '' (5.21 mm ~ 16.13 mm)
LONGITUD: R1, R2, R3
Estándar:API 5CT J 55 / K55 / N80 / C75 / L80 / C90 / T95 / Q125
Tipo de proceso: sin costura (SMLS), resistencia eléctrica soldada (ERW)
Fin: biselado, corte cuadrado, con conexión LTC / STC / BTC / VAM
Superficie: pintura a base de agua anticorrosión
Embalaje: tapas de protección en ambos extremos, papel impermeable envuelto, dos etiquetas
Types of steel tubes |
Outer Diameter |
Wall Thickness |
|
Cold-rolled tubes |
Tube sizes(mm) |
Tolerances(mm) |
Tolerances(mm) |
<114.3 |
±0.79 |
-12.5% |
Standard | Grade |
Chemical compositions(%) |
|||||||||
API SPEC 5CT |
J55 |
C | Si | Mn | P | S | Cr | Ni | Cu | Mo | V |
K55 |
0.34~0.39 |
0.20~0.35 |
1.25~1.50 |
≤0.020 |
≤0.015 |
≤0.15 |
≤0.20 |
≤0.20 |
/ | / | |
N80 |
0.34~0.38 |
0.20~0.35 |
1.45~1.70 |
≤0.020 |
≤0.015 |
≤0.15 |
/ | / | / |
0.11~0.16 |
|
L80 |
0.15~0.22 |
≤1.00 |
0.25~1.00 |
≤0.020 |
≤0.010 |
12.0~14.0 |
≤0.20 |
≤0.20 |
/ | / | |
P110 |
0.26~0.395 |
0.17~0.37 |
0.40~0.70 |
≤0.020 |
≤0.010 |
0.80~1.10 |
≤0.20 |
≤0.20 |
0.15~0.25 |
≤0.08 |
Grade | Type |
Total elongation under load (%) |
Yield strength (min) |
Yield strength (max) |
Tensile strength min Mpa |
Hardness Max (HRC) |
Hardness Max(HBW) |
J55 | - |
0.5 |
379 | 552 | 517 | - | - |
K55 | - |
0.5 |
379 | 552 | 655 | - | - |
N80 | 1 |
0.5 |
552 | 758 | 689 | - | - |
N80 | Q |
0.5 |
552 | 758 | 689 | - | - |
L80 | 1 |
0.5 |
552 | 655 | 655 | 23 | 241 |
L80 |
9Cr |
0.5 |
552 | 655 | 655 | 23 | 241 |
L80 |
13Cr |
0.5 |
552 | 655 | 655 | 23 | 241 |
C90 | - |
0.5 |
621 | 724 | 689 | 25.4 | 255 |
C95 | - |
0.5 |
655 | 758 | 724 | - | - |
T95 | - | 0.5 | 655 | 758 | 724 | 25.4 | 255 |
P110 | - | 0.6 | 758 | 965 | 862 | - | - |
Q125 | All | 0.65 | 862 | 1034 | 931 | - | - |
If you have any inquiries and questions, please contact United Steel Industry Co.,Ltd
at any time. Thanks in advance. Welcome! Email :Sales@united-steel.com