1) 21-4N air valve steel
21-4N气阀钢
2) 21-4N steel
21-4N钢
1.
Influence of different rare earth amounts on microstructure and mechanical properties of 21-4N steel was studied.
结果表明:适量混合稀土加入后,21-4N钢铸态树枝晶组织明显得到细化,偏析现象减轻,夹杂物尺寸变小,部分夹杂物形态由多边形向椭圆形转变。
3) N heat resistance steel
21-4N耐热钢
4) 21-4N Family Heat-resistant Steel
21-4N系耐热钢
5) valve steel
气阀钢
1.
Microstructure of friction welded seam of valve steels;
气阀钢摩擦焊焊缝的组织结构
2.
Development Strategy for Seriation of Internal- Combustion Engine Valve Steels in China;
我国内燃机气阀钢系列化发展趋势
3.
Study on Catalytic Method of Ion Nitriding of Valve Steel;
气阀钢离子氮化催渗方法的研究
6) Cr9Si2 steel wire for valve
4Cr9Si2气阀钢丝
补充资料：♀气阀钢748
gasvalvesteel：制造内燃机中的气阀用的钢。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条