4-1/2inch L80 Grade Coupling

Size

Outside  Diameter

Wall Thickness

32-800mm

3-30mm

Tolerate:

+/-1%

+/-1%

Standard

API 5CT coupling stock l80 7/8" seamless steel oil casing pipe material

GB  

 GB/T 8162 GB/T 8163 etc.

DIN  

10#(ST37-2,ST35-8),20#(ST42,ST45-4/8),45#(DINCK45)

JIS

10#(STPG38,STS38,),20#(STPG42)45#(JIS S45C), 

ASTM/AISI

10# /20#(ASTM a106/53 Gr.B ),45#(AISI1045), 

Length

6-12m, or require by clients

payment term

T/T or L/C at sight.

Method

cold drawing, hot rolling or hot expanding.

Min order

5 tons, more quantity price will be lower.