ERW steel pipeStandards: API 5L PSL1/PSL2, ISO 3183-1/3183-2. Anti-H2S corrosion, Anti-CO2 corrosion
Grade: GR B, X42-X80
Specification: 219.1 - 610 mm*4 - 19.1mm(8 5/8"-24"*0.157"-0.750")
Wall thickness X65-X70: 15.9mm Max; X80: 12.7mm Max
Line pipe can be used for convoying gas, water and oil in both the oil and natural gas industries.

ERW API Casing(ERW steel pipe)
Standards: API 5CT
Grade:J55,K55, L80, N80,P110
Specification:219.08-508mm*7.72-16.66mm(8 5/8"-20"*0.304"-0.656")
End type: P,PS,PSLB,PSB,PLB,
Uses: casing serves as wall of a well

ERW Structural Pipe(ERW steel pipe)
Standards: ASTM A53M, JIS G3466
Grade: GR.A,GR.B, STKR400,STKR490
Specification: 219.1-630mm*4-20mm(8 5/8"-24 4/5"*0.157"-0.787")
Uses: structural pipe is suitable for mechanical and pressure applications and low pressure liquid delivery and other purposes..