很多人都誤認為P20跟P21其實是一樣的，錯，一點都不一樣。P20是普通通用模具鋼,而P21是高硬度鏡面模具鋼，性能相差很大。
化學成份 | Chemical Composition |
專利申請中 | Patent Pending Steel |
出廠硬度 | Delivery Hardness |
預硬處理HBC36-41 | Prehardened HBC36-41 |
特征 | Features |
最適用於鏡面拋光加工的預硬化鋼 | The prehardened steel most suitable for mirror polishing. |
放電加工特性佳 | Excellent Electric Discharge Machining (EDM)characteristic ching process can be replaced. |
組織均勻，最適用於精密蝕花加工 | Homogeneous microstructure which is most suitable for the etching process. |
焊接性佳，表層不會硬化，可使其後的過程簡化 | Good weldability,surface will not be hardened after welding which simplifies the following procedures. |
用途 | Applications |
鏡面拋光模具：防塵帽、電視機濾光板、化壯品合、傢電等。 | Moulds that require mirror finishing Anti-dust cover,TV screen,electrical appliances. |
精密波紋加工模具：辦公自動化設備、汽車零件 |
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