马格尼托哥尔斯克钢铁公司从1970年开始采用磁力法无损检验钢材机械性能。目前有86％厚度为0.2～10毫米的冷轧、热轧板和镀锌、镀锡板在19个机组用磁力法在线控制性能,有40％厚度为5～10毫米的钢板、型钢和异型材用统计控制。磁力法无损控制的原理是应用金属机械性能(硬度HRB、屈服极限σ_S、抗拉强度σ_b、相对延伸率δ、按艾利克逊法深 Magnitogorsk Steel began non-destructive testing of the mechanical properties of steel using magnetic methods since 1970. There are currently 86% of cold-rolled, hot-rolled and hot-rolled sheets with a thickness of 0.2 to 10 mm and tin-plated and tin-plated plates that are magnetically controlled on-line in 19 units with 40% of steel plate thickness of 5 to 10 mm, Profile with statistical control. The principle of non-destructive magnetic method is the application of mechanical properties of the metal (hardness HRB, yield limit σ_S, tensile strength σ_b, relative elongation δ, according to the Ellison law deep