• API 5CT N80 casing and tubing pipe
• API 5CT K55 casing and tubing pipe
• API 5CT J55 casing and tubing pipe
• EN10028-2 16Mo3 Boiler and Pressure Vessel steel Plate Notch impact energy
• EN10028-2 P265GH Pressure vessels steel equivalents
• EN 10210 S355J2H low alloy carbon structural steel
• EN 10210 S355J0H steel hollow materials
• GB/T 18248 34CrMo4
• GB/T 18248 35CrMo alloy steel
• 30CrMo steel Heat treatment, 30CrMo steel tube/pipe

K55 API 5CT Relevant Names

API Buttress Thread Casing Couplinga The dimension classification for the coupling is the same as the size classification for the pipeline on which the coupling is made use of.
b Groups 1, 2 and also 3: Tolerance on outdoors diameter W: +_ 1 % but not higher than +_ 3,18 mm.
c Group 4: Tolerance on outdoors size W: +_ 1 % yet not more than + 3,18 -59 mm.
d Groups 1, 2 and 3: Tolerance on outside diameter Wc: + 0,79, -0,40 mm.

The casing coupling is utilized to attach 2 coverings.
1. Steel grade: J55, K55, N801, N80Q, L80 1, L80 9Cr, L80 13Cr, C90, T95, P110, Q125, and so on
2. Specification: 4-1/2, 5, 5-1/2, 6-5/8, 7, 7-5/8, 8-5/8, 9-5/8,10 -3/ 4, 11-3/4, 13-3/8, 16, 18-5/8, 20, etc.
3. Thread type: Long round thread (LC), brief round string (STC), buttress thread (BC), unique string, and so on
. As a China-based casing coupling producer and vendor, our firm provides a broad variety of products that consists of tubing coupling, NUE API tubing, J55 API casing/ tubing, slotted pipe, and more.
Relevant Names
Tube Casing Joint|Casing Collar for Tubing Connection|Casing Coupling with Internal Thread
1. Low and middle pressure fluid transportation pipeline
2. Casing pipe
3. Low and medium pressure boiler seamless steel pipe
4.High pressure boiler seamless steel pipe
5.carbon seamless steel pipe for ship
6.Seamless steel pipe used in high pressure chemical fertilizer equipment
7.Petroleum and natural gas industry
8.Steel pipe for Heat exchanger
9.Used for diesel engine
10.Chemical industry,building industry,environment industry etc.