(1) ERW Casing:
Specs: 4 1/2", 5", 5 1/2", 7", 9 5/8", 10 3/4", 13 3/8"
Steel Grade: J55,K55,N80,P110
Standards: API SPEC 5CT, SY/T6194-2003
Uses:Petroleum and natural gas production engineering
(2)Structural Pipe:
Specs: 4 1/2", 5 1/2", 6 5/8", 7", 8 5/8", 9 5/8",10 3/4",12 3/4",14"
Steel Grade:Q195,Q215,Q235
Standards:GB/T13793-1992
Uses: used in all kinds of structural parts, spare parts and pipelines transporting fluids
(3)Carrier Line:
Specs: 4 1/2", 5 9/16", 6 5/8", 8 5/8",10 3/4", 12 3/4", 14"
Steel Grade: A,B, X42,X46,X52,X56,X60,X65,X70,X80
Standards: API SPEC 5L, GB/T9711
Uses: used to transport natural gas, crude oil, refined oil, water,coal slurry, mineral fines, etc. through the pipelines.
ERW adopts the first production line in China which is able to manufacture N80 grade steel casing, by introducing the rolling mill and flying cut-off saw of Nakata Mfg.Co.,Ltd (Japan), hi-frequency welder and heat treatment equipment of Thermatool Co.,Ltd. (USA). The rolling mill adopts the most advanced FF-X forming technology in the world,which the perfect universal usage of rollers, easy to operate, low operation cost and the location therefore can be precisely digital-controlled to ensure the stsbility and precision of forming and thereafter the products with excellent quality.
