... , A269/SA269, A312/SA312 Steel Grade:TP304/304L,TP316 small diameter stainless steel tubingStandards: ASTM/ ASME A213/SA213, A269/SA269, A312 ... , 316/316L, 316Ti, 321/321H, 309S, 310S, 347/347H,31803Outside diameter range from 3 mm to 219mm.Wall thickness range from ... TestASTM E213 E309 E426ASTM E213 E309 E426HardnessHRB<90HRB<90 small diameter stainless steel tubing