Quenching crack propagation characteristics of the organizations on both sides without decarburization phenomenon significant difference between crack and materials and forging cracks.

淬火裂纹的组织特征是裂纹两侧无脱碳现象，明显区别与锻造裂纹和材料裂纹。

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Causes the steel to produce the hot brittleness, reduces the steel the ductility and the toughness, when forging and rolling crack.

使钢产生热脆性，降低钢的延展性和韧性，在锻造和轧制时形成裂纹。

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Improper forging process will also appear large grain or uneven, hardening crack phenomenon, forging cost is higher than the casting flange.

锻造工艺不当也会出现晶粒大或不均，硬化裂纹现象，锻造成本高于铸造法兰。

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