45# steel pipe

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The mainly characteristics of 45# steel pipe


Commonly used medium carbon quenched and tempered structural steel. 45# steel pipe cold plasticity generally, annealing, normalizing is slightly better than quenching and tempering, 45# steel pipe has higher strength and better machinability, and can obtain certain toughness, plasticity and wear resistance after proper heat treatment. Sex, 45# steel pipe material is convenient. Suitable for hydrogen welding and argon arc welding, not suitable for gas welding. Preheating is required before welding, and stress relief annealing should be performed after welding.

45# steel pipe normalizing can improve the cutting performance of the hardness less than 160HBS blank. After 45# steel pipe has been quenched and tempered, its comprehensive mechanical properties should be optimized for other medium carbon structural steels, but 45# steel pipe has low hardenability, and the critical hardenability diameter of water is 12~17mm. There is a tendency of cracking during water quenching. When the diameter of 45# steel pipe is more than 80mm, the mechanical properties are similar after quenching or tempering, and the medium and small mold parts can be quenched and tempered to obtain higher strength and toughness, while the large parts are positive. Fire treatment is appropriate, so 45# steel pipe is usually used in quenched or tempered condition.


Katalor can supply the 45# steel pipe with high quality and best service. And if you have any requirements about 45# steel pipe, please contact us. We can send the 45# steel pipe detail information to you. We will reply you at first time.

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