Cr12Mo1V1是國際上較廣泛應用的高碳高鉻冷作模具鋼，屬萊氏體鋼，具有高的淬透性、淬硬性和高的耐磨性；高溫抗氧化性能好，淬火和拋光后抗銹蝕能力好，熱處理變形小。Cr12Mo1V1宜制造各種高精度、長壽命的冷作模具、刃具和量具，例如:形狀復雜的沖孔凹模、冷擠壓模、滾絲輪、搓絲輪、冷剪切刀和精密量具等.

化學成份                                         

碳C：1.40～1.60                                         

硅Si：≤0.60                                         

錳Mn：≤0.60                                        

 硫S：≤0.030                                         

磷P：≤0.030                                         

鉻Cr：11.00～13.00                                        

 釩V：≤1.10                                         

鉬Mo：0.70～1.20                                         

鈷Co：≤1.00                                                                                  

力學性能：                         

                 硬度：退火，≤255HB，壓痕直徑≥3.8mm淬火，≥59HRC