Specials are steels made in a special way and having special properties. They are in fact alloy steels, such as stainless acid-resisting steel, oxidation-resistant steel, electrical heating alloys, low-temperature steel, etc.

• 特殊钢是用特殊的方法冶炼、具有特殊性能的钢。事实上它们都是合金钢，如不锈耐酸钢、耐热不起皮钢、电热合金、低温钢等。