24 July 2021 Non-Magnetic Steel Plate
40Mn18Cr4V Non-Magnetic Steel plate
40Mn18Cr3 is a non-magnetic steel, according to the material can be divided 20mn23alv, 45mn17al3 (917), 30mn20al3,40Mn18Cr3,40mn18cr4v, 50mn18cr4v and other non-magnetic steel, widely used in large and medium-sized transformers, electromagnets, and other non-magnetic structural materials.
Non-magnetic steel is fe-mn-al-c series of austenite, the chemical composition of the electromagnetic properties, tissue stability, excellent mechanical properties, low permeability and high resistivity, eddy current loss in the magnetic field is minimal. When the magnetic field strength is 16000a / m (200 Oersteds), the magnetic permeability of the non-magnetic steel is less than or equal to 1.31910-6 h / m (1.05 high / A), the permeability of the stainless steel is 1.33910- 6h / m (1.1 high / o). Austenitic stainless steel has mild magnetic properties after cold working
40Mn18Cr3 non-magnetic steel is manganese-chromium non-magnetic austenitic retaining ring steel, solution treatment, semi-thermal deformation or cold deformation strengthening to improve the strength of the steel to meet the different types of retaining ring for retaining ring type Ⅰ ~ Ⅲ turbine generator without magnetic ring forgings and other non-magnetic parts.
Chemical Comosition:
| C | Si | Mn | S | P | Cr |
| 0.30~0.55 | 0.30~0.8 | 17.00~19.00 | ≤0.05 | ≤0.05 | 3.00~5.00 |
Mechanical Properties:
| Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % | Reduction of area % |
| 735 | 637 | 80 | 35 |