[Back]Home > Products > Oil Country Tubular Goods > API Slotted Casing Pipe

API Slotted Casing Pipe

Application: Used as Walls Structural Retainers and Screen Pipes for Oil, Gas and Water Wells

Specification: OD: 50mm - 500mm

                          WT: less than 20mm

                          LENGTH: less than 15m

Slot&Holes Specification: as customer require

Standard & Grade: API , API5CT  J 55/K55/N80/C75/L80/C90/T95/Q125

Process Type: Seamless (SMLS), Electric Resistance Welded (ERW)

End: Plain, Beveled, Square Cut, With LTC/STC/BTC/VAM Connection

Surface: Anti-corrosion and water Painting

Packing: Protection Caps in Both Ends, Waterproof Paper Wrapped

               

 Production Process of API Slotted Casing Pipe 

 Specification of API Slotted Casing Pipe                           

                          OD: 50mm - 500mm

                          WT: less than 20mm

                          LENGTH: less than 15m

Slot&Holes Specification: as customer require


 Technical Data of API Slotted Casing Pipe 

 Chemical Composition

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

 Mechanical Properties

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 - -

 Surface of API Slotted Casing Pipe 

Anti-corrosion and water Painting

 Packing of API Slotted Casing Pipe 

Sea worth packing according to the API specifications

Standard export bundle wrapped with strong steel strip

 Product Advantages of API Slotted Casing Pipe 

1. Good verticality of cutting edge, smooth cutting edge, no burr, even cutting seam.

2. Large overflow area, 27/8 "screen with 300 slits /1.5m, 2.4 times larger than the overflow area of tubing of the same specification.

3. The anticorrosion treatment improves the corrosion resistance and wear resistance of the screen pipe, and can extend its underground working life.

4. The slotted pipe is processed by J55 or N80 oil casing body, with high strength and not easy deformation.