35CrMo steel pipe

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35CrMo steel pipe has the good weldability under the GB/T 18248 


Katalor is a professional steel company to produce the 35CrMo steel pipe. We have our own mill and warehouse in 35CrMo steel pipe. Every month, we have export 35CrMo steel pipe more than 40,000 ton.


According to the International Institute of Welding (IIW), when Ceq<0.40%, the hard tendency of 35CrMo steel pipe is not obvious, the weldability is excellent, the welding is not necessary to be preheated and can be welded directly. When Ceq=0.40 to 0.60%, the hard tendency of the 35CrMo steel pipe is obvious, the weldability is still available, the 35CrMo steel pipe needs to be properly preheated before welding. Meanwhile, the post weld slow colding and other technical measures need to be adopted to control the welding connection energy.

When Ceq>0.60%, the hard tendency of steel is strong, and the weldability is poor. It belongs to hard welding steel, such as 35CrMo steel pipes. It is necessary to adopt high preheating temperature and strict technical measures, and select suitable welding material to weld 35CrMo steel pipe, etc such hard welding steel.

It is calculated that the carbon equivalent of 35CrMo steel pipe is Ceq=0.72%. It can be seen that the weldability of 35CrMo steel pipe material is bad, the hard tendency of the welding is larger, the hot cracking and cold cracking tendency of the heat affected zone will be larger, especially in the tempering state, and the cold cracking tendency in the heat affected zone will be very prominent.

Do you want to buy the high quality 35CrMo steel pipe? You should choose 35CrMo steel pipe from Katalor. If you have any need in 35CrMo steel pipe, please contact us freely. We will reply you at first time. Of course we will give you the 35CrMo steel pipe with best price.

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