... bars are distinguished from seamless fluid-carrying tubes or hollow sections by their dimensions and metallurgical properties which confer machinability ... , 440C, 430, 431Duplex Stainless Steel Series 2205, 2507Nickel-base Alloy Series 904L, 17-4PH, 17-7PH,F51, F55, 253MA, ... 254SMO, Alloy C276, N08367, N08926, Monel400, Inconel625, Inconel718Standard GB/T14975-2002 ...