Ultra-high strength steel 42CrMo die steel, high strength and toughness Suzhou 42crmo, hardenability better, no temper brittleness, quenching small deformation after quenching a higher fatigue limit and anti times shocks Shenzhen 42crmo, good low temperature impact toughness, high creep strength and rupture strength at high temperatures. The steel is usually quenched after a surface hardening heat treatment plan. Basic Information China executed Standard GB / T 3077-1999 the corresponding ISO Grade: 42CrMo4 corresponding first special steel grades: 42crmo4 corresponding Japanese brands: SCM440 corresponding German brands: 42CrMo4 or 1.7225 corresponds approximately US brands: 4140 or edit an G41400 physical properties ) 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 Suzhou 42crmo, Yangzhou 42crmo, Katherine source steel from Liaocheng Katherine source Pipe Limited. Liaocheng 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 work into the brilliant, for a better future!