NM500 and AR500 are both abrasion-resistant steel plates commonly used in applications that require high resistance to wear and impact. While they share similarities, there are some differences between them:
Origin: NM500 is a Chinese standard (GB/T 24186) for wear-resistant steel, while AR500 is an American standard (ASTM A36/A36M-08) for abrasion-resistant steel.
Chemical Composition: The composition of NM500 and AR500 may vary slightly. Both grades generally contain high amounts of carbon and manganese to improve hardness and strength. However, the specific chemical composition can differ depending on the manufacturer or supplier.
Hardness: NM500 typically has a hardness range of around 470-540 HBW (Brinell hardness), while AR500 usually falls within the range of 470-535 HBW. The hardness level indicates the ability to resist indentation and wear.
Availability: AR500 is more widely available and recognized globally, especially in North America, due to its acceptance as an ASTM standard. NM500 may be more commonly found in China and certain Asian markets.
Both NM500 and AR500 offer excellent abrasion resistance and are suitable for various applications such as mining equipment, construction machinery, and targets for shooting ranges. When choosing between the two, it's essential to consider factors like cost, availability, specific project requirements, and the compatibility of the steel grade with relevant standards and regulations in your region.
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