Detailed Product Description Forming Type1/2-16 Cold Inner Expand 18-48 Hot Press Forming. SizeSeamless Fittings 1/2-16(DN15-DN400); Welded Fittings1/2-48(DN15-DN1200)StandardASME B16.9, MSS SP-43 , DIN 2615,JIS B2313 , GB/T12459, GB/T13401,SH3408, SH3409,HG/T21635 ,HG/T21631Wall ThicknessSCH5S-SCH160MaterialStainless Steel, Nickel Copper, Low Alloy Steel, Alloy Steel.