1. Mn13 high manganese wear-resistant steel, after water toughening treatment, has a single austenite structure with good plasticity and toughness. When the surface of the steel plate is subjected to impact and large pressure, the surface austenite will quickly form martensite and produce work hardening, resulting in extremely high wear resistance on the surface.
2. Mn13 steel plate is a flat steel plate formed by pouring molten steel, cooling it, and pressing it. It is flat and rectangular, and can be directly rolled or cut from wide steel strips. Steel plates are divided by thickness, with thin steel plates<8 millimeters (the thinnest being 0.2 millimeters), medium thick steel plates ranging from 8 to 60 millimeters, and extra thick steel plates ranging from 60 to 120 millimeters.
3. Executive standard for Mn13 steel plate:
- Japan JIS G5131 (1991)
- Korea KS D4104 (1995)
- American ASTM A128/A128M-1998
4. Mn13 steel plate delivery status: The steel plate is delivered in a quenched and tempered state, and the delivery status can also be specified according to technical requirements.
5. Performance requirements for thickness direction of Mn13 steel plate: Z15, Z25, Z35.
6. Mn13 steel plate density: 7.85/cubic meter.
7. The formula for calculating the weight of Mn13 steel plate is: thickness * width * length * density.
8. Mn13 steel plate conventional size: 8-80mm * 2000-2500mm * 8000-10000m
Mechanical properties of Mn13 steel:
- Tensile strength（ σ B/MPa): ≥ 880Mpa
- Yield point（ σ S/MPa): ≥ 345Mpa
- Elongation rate: ≥ 40%
- Impact performance 20 ℃ (Aku2/J): ≥ 90J
- Initial hardness value (HB): 200-250
- Hardness value after hardening (HB):>300
- 180 ° bending test: D=2A
Characteristics of Mn13 steel plate
1.The greater the external impact load, the higher the wear resistance of its own surface layer;
2. As the surface hardening layer gradually wears away, new work hardening layers will continuously form.
3. Mn13 rolled steel plate has excellent wear resistance to strong impact wear and high stress wear, and will not break during use. It also has easy mechanical processing properties such as cutting, welding, and bending.
4. Mn13 is the best choice among wear-resistant materials that resist strong impact and high pressure material wear. It has work hardening properties that cannot be compared to other wear-resistant materials. Under the action of large impact loads or contact stresses, the surface of the steel plate undergoes work hardening, and the surface hardness rapidly increases from HB200 to HB500 or above, resulting in a high wear-resistant surface layer. However, the austenite layer inside the steel plate still maintains good impact toughness.
5. The traditional use of high chromium cast iron only has good wear resistance to mobile wear. Mn13 rolled steel plate can effectively reduce the cost of using vulnerable parts of equipment, save equipment maintenance costs, and improve the competitiveness of finished products.
Production and cutting process flow of Mn13 steel plate:
- Production process: initial refining → LF refining → VD treatment → continuous casting (mold casting) → cleaning, heating → rolling → surface inspection → batch → flaw detection → heat treatment → cutting sampling → performance inspection → warehousing.
- Cutting process: After all performance indicators of Mn13 steel plate meet the requirements during factory inspection, it can be cut and processed according to the cutting process. Generally, CNC plasma cutting or CNC laser cutting are preferred when the thickness of the steel plate is not more than 20mm. If the thickness of the steel plate is greater than 30mm, CNC flame cutting is usually chosen to control the cutting accuracy and time.
