API ERW Line Pipe    
Technical Standards: API 5L PSL1/PSL2, ISO *****1/*****2. Anti-H2S corrosion, Anti-CO2 corrosion
Grade: GR B, X**-X*0
Specification: **9 - **0 mm*4 - *9.1mm (8 5/8"**4"*0.**7"*0.**0") Wall thickness X**-X*0: *5.9mm Max; X*0: *2.7mm Max
Technique: welded
Line pipe can be used for convoying gas, water and oil in both the oil and natural gas industries.    
API ERW Casing Standards: API 5CT
Grade: J*5, K*5, L*0, N*0, P**0
Specification: **9.*****8mm*7.****6.*6mm (8 5/8"**0"*0.**4"*0.**6")
End type: P, PS, PSLB, PSB, PLB, Technique: welded Uses: casing serves as wall of a well