302 stainless steel circular light for adoption of machining screw and tapping screw.
303 stainless steel circular light to improve machinability, add a small amount of sulfur in type 303 stainless steel, bar material is used for processing the nut.
304 stainless steel circular light is suitable for using craft processing fasteners, such as the bolt is longer than the specification, large diameter of the bolt, they are probably beyond the scope of the cold heading process.
305 stainless steel circular light is suitable for the cold heading process processing fasteners, such as cold forming nuts, hex bolt.
Type 309 stainless steel round and 310 stainless steel light round, they contain amount of Cr and Ni content is higher than 18 8 stainless steel, is suitable for the work under the high temperature of the fasteners.
316 stainless steel round and 317 stainless steel light round, they all contain Mo alloy element, so their high temperature strength and corrosion resistance are higher than 18 8 stainless steel.
Type 321 stainless steel round and 347 stainless steel light round, 321 stainless steel light circular containing Ti alloy element, the more stable the type 347 contains Nb, so as to improve the intergranular corrosion resistance of the material. Suitable for no annealing after welding or fasteners, serving in 420 ~ 1013 ℃.