国外阀门材料常用技术标准 低温用承压件铁素体和马氏体钢铸件
| 牌号 | 通常的最低试验温度°F[℃] | 
| LCA | -25[-32] | 
| LCB | -50[-46] | 
| LCC | -50[-46] | 
| LC1 | -75[-59] | 
| LC2 | -100[-73] | 
| LC2-1 | -100[-73] | 
| LC3 | -150[-101] | 
| LC4 | -175[-115] | 
| LC9 | -320[-196] | 
| CA6NM | -100[-73] | 
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