coupling material

1.OD for 1.6"-20" coupling
2.Material:J55,K55,N80,P110 etc.
3.Product method: Rolling or Forged
4.Standard:API 5CT,5L
5.Thread type: EU,NU,STC,LTC,BTC,LP,VAM ,VAM TOP ect.

Coupling stock specification
Name	Size - inch	OD - mm	Thickness - mm
Tubing coupling stock	1.9"   NUE	57	9.5
	1.9"   EUE	64.5	11.5
	2-3/8" NUE	74	11
	2-3/8" EUE	78	11
	2-7/8" NUE	88.9	13
	2-7/8" EUE	94	14
	3-1/2" NUE	108	15
	3-1/2" EUE	115	15.5
	4"     NUE	122	14.5
	4"     EUE	142	16
	4-1/2" NUE	121	14.5
	4-1/2" EUE	142	16
Casing Coupling stock	4-1/2"	127	13
	5"	142	14
	5-1/2"	154	14
	6-5/8"	188	17
	7"	200.03	16
	8-5/8"	245	21
	9-5/8"  LTC	270	21
	9-5/8"  BTC	270	21
	10-3/4" STC	298.45	18.2
	10-3/4" BTC	298.45	18.2
	11-3/4" STC	323.85	18.9
	11-3/4" BTC	323.85	18.9
	13-3/8" STC	365.12	17.6
	13-3/8" BTC	365.12	17.6
	16"     STC	431.8	19.9
	16"     BTC	431.8	19.9
	18-5/8" STC	508	24.5
	18-5/8" BTC	508	24.5
	20"     STC	533.4	20
	20"     BTC	533.4	20