... Welded Steel Pipe Process:HFI/ERW (Electric resistance welded)Usage:Used for liquid delivery, such as water, gas, and oil; construction ... mm-22mmLength:1 – 14 mGrade:API 5L: GR A, GR B, X42,X46, X56, X60,X65,X70ASTM A252 GR 1, GR ... 10204/3.1B Electric Resistance Welded Steel Pipe ASTM A53 Grade B