英文: Especially at-0 ℃,the impact toughness of ductile iron excess J/cm~ so that it can meet the requirements of ductile iron in the very frigid regions.
中文: 尤其在-0℃时,αkv> J/cm,可以满足球墨铸铁件在高寒地区的使用要求。
英文: New material has excellent harden ability. After quenching in oil and tempering at middle temperature,the hardness is great than HRC,the impact toughness and fracture toughness exceeded J/cm~ and 0 MPa.
中文: 新材料具有足够的淬透性和淬硬性,经油冷淬火和中温回火处理后,硬度大于 HRC,冲击韧性大于 J/cm,断裂韧性大于0 MPa.