The main difference is the material.
The carbon contents of 35CrMo alloy steel pipe and 42CrMo alloy steel pipe are about 0.35% and 0.42%, respectively. In addition, the Cr content of 42CrMo alloy steel pipe is slightly higher than that of 35CrMo alloy steel pipe.
42CrMo alloy steel pipe than the 35CrMo alloy steel pipe strength, hardenability and toughness to be large, in actual use, 42CrMo alloy steel pipe is generally used to produce more than 35CrMo alloy steel pipe strength requirements, the larger the size of the important parts.
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