قیمت مناسب aisi 420 جذابیت زیبایی
منزل • قیمت مناسب aisi 420 جذابیت ... The AISI 420 stainless steel round bar with a diameter of 20 mm was heated to 980 °C for 1 h at a heating rate of 10 °C/min. After being discharged, it was quickly cooled it to room temperature in the oil, then reheated to 600 °C and 700 °C, heat-cooled for 2.5 h, and cooled to ...