Construction

ASTM A53 Grade B is a standard specification established by ASTM (American Society for Testing and Materials) for black carbon steel pipes.

ASTM A500 Structural Steel Hollow Section is a cold formed welded and seamless carbon steel structural tube for structural applications.

This specification covers straight seam and spiral butt seam welded unannealed austenitic stainless steel tubular products intended for low and moderate temperatures and corrosive service where treatment is not necessary for corrosion resistance.

A209 alloy pipe is an American standard alloy steel pipe. It not only has high oxidation resistance and high temperature steam corrosion resistance, but also has good impact toughness, high and stable long-lasting plasticity and thermal strength properties.