API Spec 5CT Hollow Seamless Carbon Steel Tubes Casing And Tubing Pipe Stc

Product Specification

• Standards of seamless steel pipe
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• API SPEC 5CT
  Product Name	Executive Standard	Dimension (mm)	Steel Code / Steel Grade
  Casing	API 5CT	Ø114~219 x WT5.2~22.2	J55, K55, N80, L80, P110
  Tubing	API 5CT	Ø48.3~114.3 x WT3.2~16	J55, K55, N80, L80, P110

•  

• Product name:API-5CT Seamless Casing
  Material: 34CrMo4,H40,J55, K55, N80,L80,M65,C90,T95,P110,Q125
  Standard: API 5CT Grade: J55 N80 P110
  Outer Diameter: 219.08-762mm Thickness: 6.71 - 30 mm
  Technique: Cold Drawn/Hot Rolled Application: Oil Pipe
  Secondary Or Not:Non-secondary Place of Origin: China (Mainland)
  Certification: API Section Shape: Round
  Surface Treatment:Black,varnish Special Pipe: API Pipe
  Alloy Or Not: Is Alloy and Carbon Steel
  
  
  Packaging & Delivery
  Packaging Details: Seaworthy, Steel Shelf, Iron Pallet or as per customer's requirement
  Delivery Times:20-55 days

  

  Detailed Photos

  

  

  

  Product Parameters

  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	-	-

  Manufacturing Process

  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.