API 5CT Black Seamless Pipe Oil Casing J55/K55/L80/N80/P110/T95/Q125 for Oil Industry

Place of Origin China
Brand Name ZNGL

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Product Details
Model NO. API 5CT J55/K55 Section Shape Round
Transport Package 20FT/40FT/Bulk Specification 1-10000tons
Trademark Zhongneng Ganglian Steel Origin China
HS Code 7610900000 Supply Ability 80000
Warranty Quality Reliable/Available Type Seamless
Technique Hot Rolled Material Carbon Steel
Surface Treatment Black Usage Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
Samples US$ 100/Piece 1 Piece(Min.Order) | Request Sample Customization Available | Customized Request
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Product Description

Chemical compositions of casing pipe

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
Q125 ≤0.35 ------------- ≤1.35 ≤0.020 ≤0.010 ≤1.50 ≤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

Mechanical properties of casing pipe
Grade Type Total elongation 
under load
 (%)
Yield strength
 (min)Mpa
Yield strength 
(max)Mpa
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 - -

Casing Pipe Manufacturing Process:

Steel ingot heating → hydraulic punching → reheating → extension → periodic rolling → reheating → sizing → cooling → straightening → pipe cutting → inspection

1. An annular heating furnace is required for ingot heating;
2. Punching and reheating with hydraulic press;
3. The oil casing plant uses a two-roller guide plate extension machine for extension;
4. Re-use a disc heating furnace for periodic rolling, and use a non-entry furnace for reheating, cooling, straightening, pipe cutting, and inspection.

API 5CT Seamless Pipe Oil Casing J55/K55/L80/N80/P110/T95/Q125 API 5CT Seamless Pipe Oil Casing J55/K55/L80/N80/P110/T95/Q125 API 5CT Seamless Pipe Oil Casing J55/K55/L80/N80/P110/T95/Q125 API 5CT Seamless Pipe Oil Casing J55/K55/L80/N80/P110/T95/Q125 API 5CT Seamless Pipe Oil Casing J55/K55/L80/N80/P110/T95/Q125






1.Packing :3 layers of packaging, kraft paper inside, water plastic film in the middle, the outermost GI steel plate tied with steel belt or as required.

2.Shipping port: Tianjin/Shanghai/Qingdao
3.Shipment:
a. Length: ≤6m, loaded in 20GP Container.
b. Length: ≤12m, loaded in 40GP Container.
Remark: Size of 20GP Container (inside :5898*2352*2393mm)
Size of 40GP Container (inside:12032*2352*2393mm)
Size of 40HQ Container (inside:12032*2352*2698mm)

4.Delivery time: Within 7-15 days, depending on the situation