40Cr钢在AQ251淬火介质中淬硬层深度的测定

Measurement of The Case Depth for 40Cr Steel Quenched in AQ251 Quenchant

用“U曲线法”测定了 4 0Cr钢在AQ2 5 1淬火介质中的淬硬层深度 ,为AQ2 5 1淬火剂使用者提供了参考数据。

Hardened case depth for 40Cr steel quenched in AQ251 quenchant has been measured by 'U curve method',and therefore supplies the AQ251 quenchant users with the theoretical basis.