The physical properties of editing a) critical point temperature (approximate): Ac1 = 730 ° C, Ac3 = 800 ° C, Ms = 310 ° C. 2) linear expansion coefficient: Temperature 20 ~ 100 ° C / 20 ~ 200 ° C / 20 ~ 300 ° C / 20 ~ 400 ° C / 20 ~ 500 ° C / 20 ~ 600 ° C, linear expansion coefficient: 11.1 × 10K /12.1×10K/12.9×10K/13.5×10K/13.9×10K14.1×10K. 3) elastic modulus: temperature 20 ° C / 300 ° C / 400 ° C / 500 ° C / 600 ° C, elastic touch 210000MPa / 185000MPa / 175000MPa / 165000MPa / 15500oMPa annealing annealing No.1 "760 ± 10 ℃ annealing Levin Steel 42crmo, air-cooled furnace cooling to 400 ℃. HB220-230 normalizing normalize No.4 860 ± 10 ℃ normalizing 42crmo, cooled baked. quenching quenching + tempering No.5 840 ± 10 ℃ quenching in water or oil (depending on the product type shape complexity) Suzhou 42crmo, 680-700 degrees tempering. HB <217 quenching quenching + tempering No.6 840 ± 10 ℃ quenching oil, then 470 degrees tempering. HRC41-45 quenching quenching + tempering No.7 840 ± 10 ℃ quenching oil, then tempered to 480 degrees. HRC35-45 quenching quenching + tempering No.8 850 ℃ oil quenching, tempering and then 510 degrees. HRC38-42 quenching quenching + tempering No.9 850 ℃ quenching oil, then 500 degrees tempering. HRC40-43 quenching quenching + tempering No.10 850 ℃ quenching oil, then 510 ℃ tempered. HRC36-42 quenching quenching + tempering No.11 850 ℃ quenching oil, then . 560 ℃ tempered HRC32-36 quenching quenching + tempering No.12 860 ℃ quenching oil, then 390 degrees tempering HRC Dongguan 42crmo |. 42crmo | Katherine source of steel provided by source Pipe Co., Ltd. Liaocheng Liaocheng trillion. Katherine source Pipe Co., Ltd. (www.lczygg.com) strong, credible, Liaocheng in Shandong steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Katherine source of innovative ideas will lead pipe and you hand in hand into the brilliant, for a better future!