Wear-Resistant Steel NM400TUF – NM600TUF
General Technical Characteristics
Wear-resistant steel grades NM400TUF, NM500TUF, and NM600TUF are advanced plate steels with increased hardness and enhanced impact toughness (TUF — tough, improved resistance to impact). These steels are designed for operation under extreme abrasive wear and high dynamic loads.
The key parameter is Brinell hardness:
- NM400TUF — ~400 HB
- NM500TUF — ~500 HB
- NM600TUF — ~600 HB
The main difference from standard NM grades is improved resistance to cracking and impact loads while maintaining excellent wear resistance.
Supplied in plate form with thicknesses ranging from 4 mm up to 120 mm and more.
Chemical Composition and Mechanical Properties
NM-TUF steels feature a complex alloyed composition including carbon (C), manganese (Mn), silicon (Si), chromium (Cr), nickel (Ni), molybdenum (Mo), and boron (B).
Additional heat treatment and microstructure control provide:
- enhanced impact toughness
- resistance to crack formation
- uniform hardness through the thickness
Mechanical properties:
- hardness: 400–600 HB
- yield strength: from 1100–1400 MPa
- उत्कृष्ट resistance to both abrasive and impact wear
- extended service life compared to standard NM grades
Applications
NM400TUF – NM600TUF wear plates are used in the most demanding environments:
- mining industry
- quarry and excavation equipment
- buckets, blades, liners
- crushing and milling equipment
- bulk material handling systems
- cement and metallurgical plants
They are especially effective in applications combining impact and abrasion.
Features
The key advantage of NM-TUF steel is the combination of high hardness and superior impact strength. This allows you to:
- significantly increase component lifespan
- reduce the risk of brittle failure
- lower maintenance costs
- operate reliably in harsher environments
The material can be cut, bent, and welded with proper procedures (preheating and controlled cooling recommended).
Standards and Supply Formats
NM400TUF – NM600TUF steel is produced according to manufacturer specifications aligned with international standards such as EN and ASTM.
Available supply formats:
- standard size plates
- cut-to-size processing
- plasma, oxy-fuel, and laser cutting
- custom parts based on drawings
- optional machining services
Order NM-TUF Steel Today!
If you need maximum durability and performance, choose NM400TUF, NM500TUF, or NM600TUF wear-resistant steel.
Contact us today to buy high-quality wear plates at competitive prices with fast delivery and guaranteed quality!




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