Seamless API 5L API 5CT J55 K55 N80 L80 P110 Oil Casing and Tubing for Oil Well Sizes

Place of Origin China
Brand Name ZNGL

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Product Details
Model NO. API 5CT J55/K55 Section Shape Customization
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 5L API 5CT J55 K55 N80 L80 P110 Oil Casing and Tubing, Oil Well Casing Sizes September Sales Promotion API 5L API 5CT J55 K55 N80 L80 P110 Oil Casing and Tubing, Oil Well Casing Sizes September Sales Promotion API 5L API 5CT J55 K55 N80 L80 P110 Oil Casing and Tubing, Oil Well Casing Sizes September Sales Promotion API 5L API 5CT J55 K55 N80 L80 P110 Oil Casing and Tubing, Oil Well Casing Sizes September Sales Promotion API 5L API 5CT J55 K55 N80 L80 P110 Oil Casing and Tubing, Oil Well Casing Sizes September Sales Promotion






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