This standard specifies terms and definitions,ordering information,dimensions,shape,mass,technical requirements,test methods,inspection rules,packaging,marking and quality certificate of hotrolled,forged,and colddrawn spring steels.
This standard applies to round and square spring steels (hereinafter referred to as steel bars) with nominal diameter or side length not greater than 120 mm,flat spring steels with nominal width not greater than 160 mm and nominal thickness not greater than 60 mm,and spring steel wire rods with nominal diameter not greater than 40 mm.
The steel grades and chemical composition specified in this standard are also applicable to ingots,billets and their products.
定价: 648元 / 折扣价: 551 元 加购物车
This standard specifies ordering information, dimensions, shape, mass, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of high carbon chromium stainless bearing steels.
This standard is applicable to hot-rolled (forged), cold-drawn, peeled and polished round bars with nominal diameter from 5 mm to 160 mm, round wire rods from 5 mm to 40 mm and round wire from 1 mm to 16 mm (hereinafter referred to as“steel products”).
定价: 312元 / 折扣价: 266 元 加购物车