公开(公告)号：US4855106A

公开(公告)日：1989-08-08

申请号：US096798

申请日：1987-09-15

申请人： Masaaki Katsumata ,  Isamu Takagi ,  Eiji Takahashi ,  Tadamichi Sakai ,  Yoji Matsumoto ,  Hideaki Ohtsu ,  Hiroyuki Uchida ,  Kiyoshi Asami

发明人： Masaaki Katsumata ,  Isamu Takagi ,  Eiji Takahashi ,  Tadamichi Sakai ,  Yoji Matsumoto ,  Hideaki Ohtsu ,  Hiroyuki Uchida ,  Kiyoshi Asami

IPC分类号： C22C38/00 ,  C22C38/22 ,  C22C38/24 ,  F16J12/00

CPC分类号： C22C38/24 ,  C22C38/22

摘要： Low alloy steels for use in pressure vessel comprising on the weight % basis:C: from 0.05% to 0.30%,Si: less than 0.10%,Mn: from 0.3% to 1.5%,Ni: from inevitably incorporated content to 0.55%,Cr: from 1.5% to 5.5%,Mo: from 0.25% to 1.5%,V: in excess of 0.10% and less than 0.6%, andthe balance of iron and inevitably incorporated impurities.The steels are excellent in hardenability, the hot strength, toughness weldability and hydrogen attack and embrittlement resistance, as well as show excellent toughness after the use in the temper brittle temperature region.

摘要翻译： 用于压力容器的低合金钢以重量％计：C：0.05％至0.30％，Si：小于0.10％，Mn：0.3％至1.5％，Ni：不可避免地含有量至0.55％ Cr：1.5〜5.5％，Mo：0.25〜1.5％，V：超过0.10％且小于0.6％，剩余的铁不可避免地加入杂质。 钢的淬透性，热强度，韧性可焊性，氢侵蚀和脆化性优异，并且在回火脆性温度区域中使用后显示出优异的韧性。