... steel round pipe : stainless steel round / square / rectangular pipe in grade 201,202,301,302 stainless steel round pipeour factory can supply stainless steel pipe : stainless steel round / rectangle /square ... 416,AISI201,Y201Cu,202,PH-4,329 ect. Stainless steel round pipe outside diameter : 8,9.5,11,12 ... 88.9,102,114,133,141,159,219 stainless steel square pipe : 10x10,12x12,15x15,17x17,18x18,19x19, ...