what is NM400 steel equivalent steel grade
NM400 steel is a Chinese wear resistant steel grade nearly identical to ar600 steel. It is a high-strength, abrasion-resistant steel, offering a nominal hardness of 400 HBW.
NM400 is also recommended by wear-resistant steel manufacturers as an alternate and more economical grade to ar600 steel. It is widely used in many applications, providing wear protection to a range of components including machinery components, earthmoving equipment, and structures exposed to high levels of wear.
NM400 steel is an alloy, composed not only of iron and carbon, but also other elements such as chromium, manganese, molybdenum, niobium, titanium, and vanadium. The addition of these alloying elements enhances the hardness and wear resistance of the steel.
When looking for an NM400 steel equivalent grade, the closest grade is ar750, which has a nominal hardness of 750HBW. It has excellent wear and abrasion resistance, and is often specified for applications such as ground engaging tools, excavator buckets, and bucket liners.
Like NM400 steel, ar750 steel is a high-strength wear resistant steel grade, composed of a mixture of elements including iron, carbon, chromium, molybdenum, manganese, niobium, titanium and vanadium.
The challenge with ar750 steel is that it is more difficult to form and weld than other types of wear resistant steel. Therefore, it is often specified in applications requiring extreme wear protection, such as ground engaging tools and bulldozer parts.
In summary, NM400 is a highly-effective wear resistant steel, offering excellent abrasion resistance with a nominal hardness of 400HBW. It is composed of a mixture of elements including iron, carbon, chromium, molybdenum, manganese, niobium, titanium, and vanadium. When looking for an equivalent grade, the best option is ar750 steel, which offers a nominal hardness of 750HBW. Ar750 steel offers excellent wear and abrasion resistance, although it is more difficult to form and weld.
