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氢是钢中有害的杂质,它的存在会引起钢中形成气泡、白点、静力疲劳(Static fatigue)及脆化,它是使钢的塑性降低而又不能提高强度及硬度的唯一的合金元素.这些缺陷虽不会在每一种钢同时发生,但某些钢种就容易发生某些缺陷.这些缺陷的发生,以合金钢较严重,但在炭素钢中,如鞍钢的重轧钢,甚至经过缓冷以后,仍然有个别的罐号发现白点(1956年2月经缓冷后有两缺罐发现白点).一般未经缓冷在热
Hydrogen is a harmful impurity in steel. Its presence causes air bubbles, white spots, static fatigue and embrittlement in steel. It is the only alloy that reduces the plasticity of steel without increasing its strength and hardness Elements of these defects, although not in the simultaneous occurrence of each type of steel, but some of the steel is prone to certain defects.The occurrence of these defects to the more serious alloy steel, but in carbon steel, such as heavy rolling of Angang, Even after the slow cooling, there are still some cans found white spots (there are two missing cans found after slow cooling in February 1956).