The effect of postwelding heat treatment on property of pressure equipment made of Cr-Mo steel has been interpreted thorough some research and practical examples.

前言： 通过一些试验研究和工程实例，介绍采用铬钼钢制造的承压设备，经热处理后对钢材性能的影响。

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The Zinc and Aluminum anode protector can prevent the Cr-Mo steel from corrosion. However, it has the obvious effect of accelerating the crack propagation.

采用锌阳极和铝阳极的防止腐蚀方法虽能防止铬钼钢腐蚀，但对其裂纹的扩展起明显的加速作用。

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Synopsis Regression analysis has been conducted on the relationship between the strength and hardness of Cr-Mo steel and the regression formula accordingly set up.

对铬钼钢强、硬度之间的关系进行了回归分析，建立了相应的回归关系式。

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