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20Mn23AlV圆钢#无磁性钢材20Mn23AlV轧材黑皮棒
20 mn23alv without magnetic steel used in transformer tank of large and medium-sized magnetic shielding, core pulling plate, coil clamp parts, bolts, etc of the leakage magnetic field structure; Lifting electromagnet suction cups, magnetic separation equipment is simplified, and in addition to iron; Special smelting electric furnace lining, furnace cover, electrode plate and the structure of electronic device.
20Mn23AlV无磁钢化学成分（％）见下表：
种类/成分 | C | Mn | Al | Cr | Ni | Ti | Si | S | P |
20Mn23AlV | 0.14～0.20 | 21.5～25.0 | 1.50～2.50 | － | － | － | ≤0.50 | ≤0.03 | ≤0.03 |
无磁钢20Mn23AlV性能见下表：
型号 | 抗拉强度(≥Mpa) | 屈服强度(≥Mpa) | 延伸率(θ5％) | 冷弯(180°d=2a) | 磁导率(高/奥) |
20Mn23AlV | 530 | 255 | 30 | 合格 | 1.05 |
