SM490C karfe farantin karfe

A karkashin Janpanese karfe misali Jis g3106, SM490 yana da uku daban-daban maki, aush kamar yadda SM490A, SM490B da SM490C, babban bambanci shi ne carbon dauke da wadannan karfe maki.Comparing da SM490B, karfe farantin SM490C da za a yi low zafin jiki tasiri gwajin karkashin 0 centigrade tare da ƙaramin tasirin makamashi mai ƙarfi a 47J, SM490B tare da 27J don farantin gwajin samfurin.Idan masu amfani da ƙarshen suna buƙatar yin maganin zafi don farantin karfe na tsarin SM490C a ƙarƙashin Normalized,Quenched and Tempered,Tempered,ya kamata su bayar da wannan lokacin a PO lokacin da aka umarce su. .