ASTM A53 Structural Steel Pipe

It's common in the STD ERW structural steel pipe field that the max.diameter is 660mm.But the technology is developed and some mill even can produce OD 720 STD ERW pipes for large diameter application pipes in engineering fields as per ASTM A53 spec,API 5L standard etc.

Hunan great steel pipe co.,ltd is advanced equipped and is able to manufacturer 660mm schedule STD ERW steel pipe in mature technology and very standard product procedure.

Large diameter 660mm ERW pipe schedule in SCH20,SCH30,SCH40 STD could be more widely used in gas and oil line pipe transportaion,construction of bridge or building. As ERW pipe is more cost saved than LSAW steel pipe and have better properties than SSAW steel pipe.Large diameter ERW pipe and tube will be in large demand in applications like gas&oil fields,piling piles,constructions etc.