What are the characteristics of 20# precision seamless steel pipe

20# precision seamless steel pipe has moderate price and it is easy for processing. After proper heat treatment, 20# precision seamless steel pipe can obtain certain toughness, plasticity and wear resistance. Normalizing can promote the spheroidization of the tissue and improve the chip properties of the hair embryo with hardness less than 160HBS.

After tempering at 550-570℃, 20# precision seamless steel pipe has good comprehensive mechanical properties. The hardenability of 20# precision seamless steel pipe is higher than that of 45# steel, which is suitable for surface hardening treatment such as high frequency quenching, flame quenching, etc.