Wear-resistant steel plate

Here is the detailed information of wear-resistant plate materials of American, European and Japanese standards regarding their chemical composition data, mechanical properties and application fields:

1. American Standard A514GrH:

- Chemical Composition:

- Carbon (C): Content ranges from 0.12% to 0.21%. The relatively high carbon content is an important element to ensure the high strength and wear resistance of the steel plate.

- Silicon (Si): 0.10% to 0.40%, which helps improve the strength and hardness of the steel.

- Manganese (Mn): 0.95% to 1.30%, enabling the steel plate to have good hardenability and welding performance.

- Phosphorus (P): ≤0.025%. The low content of phosphorus reduces the adverse impact on the toughness and welding performance of the steel.

- Sulfur (S): ≤0.02%. The low sulfur content helps improve the quality and performance of the steel.

- Vanadium (V): 0.03% to 0.08%. Vanadium can improve the strength and toughness of the steel.

- Boron (B): ≤0.006% to 0.05%, which has a certain improvement effect on the performance of the steel.

- Molybdenum (Mo): 0.4% to 0.6%. Molybdenum can improve the strength and heat resistance of the steel.

- Chromium (Cr): ≤1.0% to 1.5%. Chromium can increase the corrosion resistance and wear resistance of the steel.

- Nickel (Ni): ≤0.70% to 1.70%. Nickel can improve the toughness and corrosion resistance of the steel.

- Mechanical Properties:

- Yield strength at room temperature: ≥690 MPa, which has a high bearing capacity and can withstand large stresses.

- Tensile strength: ≥795 MPa, indicating that the steel plate has good tensile properties and is not easy to break.

- Elongation after fracture: ≥16%, reflecting that the steel plate still has a certain extension ability after being deformed by force.

- Reduction of area: ≥35%, reflecting the plastic deformation ability of the steel plate when fractured.

- Hardness: about 23 HBW, ensuring good wear resistance and fatigue resistance.

- Application Fields: Commonly used in the field of construction machinery, such as large forklifts, railway equipment, mining machinery, etc.; also widely used in marine engineering, such as the construction of offshore platforms, marine channel racks, well frames, and leg piles.

2. European Standards:

- AR400:

- Chemical Composition: Contains relatively high carbon, manganese and other elements, as well as appropriate amounts of chromium, molybdenum and other alloy elements. The specific composition ratio may vary due to different manufacturers and production standards. The combination of these elements makes the steel plate have high hardness and strength to resist wear and impact.

- Mechanical Properties: The surface hardness is relatively high, usually around 400 HBW, and has good wear resistance and impact resistance. The tensile strength is relatively high and can withstand large external forces.

- Application Fields: Widely used in fields such as mining machinery, coal mining, construction machinery, etc., such as for manufacturing liners of crushers, middle troughs of scraper conveyors, and buckets of loaders.

- AR450:

- Chemical Composition: Compared with AR400, the content of alloy elements may be adjusted to obtain higher strength and hardness. The carbon content is relatively high, and the contents of manganese, chromium, molybdenum and other elements are optimized according to performance requirements.

- Mechanical Properties: The hardness is higher, generally above 450 HBW, and the strength is further improved, with better wear resistance and deformation resistance.

- Application Fields: Commonly used in occasions with higher requirements for wear resistance and strength, such as mining equipment in large open-pit mines and key components of large construction machinery.

- AR500:

- Chemical Composition: Through special alloy design, it contains more alloy elements to ensure its ultra-high hardness and strength.

- Mechanical Properties: It has extremely high hardness, which can reach more than 500 HBW. It is a very wear-resistant material. At the same time, its strength is also very high and can withstand extreme working conditions.

- Application Fields: Mainly used for equipment components in extremely wear-resistant environments, such as the cutter head of shield machines and wear-resistant parts of large crushers.

3. Japanese Standard Mn13:

- Chemical Composition: The main characteristic is high manganese content, generally with manganese content ranging from 11% to 14%. In addition, it also contains a certain amount of carbon, silicon and other elements. The high manganese content enables the surface of the steel plate to form a hardened layer when subjected to impact or pressure, thereby improving wear resistance.

- Mechanical Properties: It has high strength and good toughness. Under impact load, the surface hardened layer can effectively resist wear. After work hardening, the hardness can be significantly improved.

- Application Fields: Widely used in various fields that require high wear resistance, such as mining, construction, mechanical engineering, etc. Commonly used in manufacturing crusher hammers, ball mill liners, excavator bucket teeth and other components.

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