GNEE STEEL proudly announces the successful plasma cutting processing of 50mm high-strength NM500 wear-resistant plates, demonstrating the company's advanced processing capabilities for extreme-hardness steel materials.
The NM500 wear-resistant steel plate, with a Brinell hardness of up to 500 HBW (typically 470–540 HBW), is specifically engineered for extreme abrasion environments. With tensile strength reaching above 1500 MPa and wear resistance approximately three times higher than Q345 steel, NM500 is the material of choice for mining dump truck compartments, crusher liners, excavator buckets, chute liners, feeders, and conveyor systems.
Relevant NM 500 Specification and Equivalent Steel Grades
| GBT 24186 | JFE | SUMITOMO | DILLIDUR | SSAB |
| NM500 | JFE-EH500 | K500 | 500V | Hardox500 |
NM500 Chemical Composition
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo | Ti | B | Als |
| NM500 | ≤0.38 | ≤0.70 | ≤1.70 | ≤0.020 | ≤0.010 | ≤1.50 | ≤1.00 | ≤0.65 | ≤0.50 | 0.0005-0.006 | ≥0.01 |
NM500 Steel Properties
NM500 steel exhibits excellent wear resistance due to its high hardness level. Some of its key properties include:
| Mechanical properties of NM 500 | |||
| Grade | Mechanical Property | ||
| NM 500 | Tensile | Elongation | |
| Mpa | Min % | ||
| 1350 | 7 | ||
| Charpy V Impact Test | |||
| Degree | longitudinal | ||
| -20 / -40 | J | ||
| min 21 | |||
| NM500 | Thickness | Hardness (HB) | |
| ≤70mm | 420~480 | ||
| ＞70~100mm |
450~540 |
||
Precision Plasma Cutting for High-Hardness NM500
Plasma cutting serves as the ideal solution for 50mm NM500 plates, operating on the principle of utilizing a high-temperature plasma arc (reaching 15,000–30,000℃) to locally melt the metal and employing high-speed airflow to remove molten slag, achieving fast and efficient cutting. The 50mm thickness falls within the optimal range of plasma cutting for NM500, where thick plates (25–50 mm) are most effectively processed.
GNEE follows rigorous process specifications when cutting NM500 plates: appropriate plasma arc current and pressure are adjusted according to plate thickness, post-cutting slag is thoroughly removed from cut surfaces, and proper cooling protocols are strictly observed to prevent edge cracking caused by thermal stress. Additionally, plasma cutting effectively controls thermal stress in the heat-affected zone, significantly reducing the risk of delayed edge cracking.
One-Stop Steel Plate Cutting Service from GNEE STEEL
Beyond NM500 plasma cutting processing, GNEE STEEL provides comprehensive one-stop steel plate cutting services for global industrial projects. With advanced CNC cutting equipment and an experienced technical team, GNEE delivers high-precision steel plate processing for pressure vessels, storage tanks, heavy machinery, and structural components.
Core Cutting Capabilities
GNEE's cutting platform is equipped with over 236 sets of advanced cutting equipment incorporating technologies from Germany, Sweden, the United States, and Japan, offering a range of cutting methods tailored to diverse processing requirements:
1. Laser Cutting
- Maximum dimensions: 40,000 mm length × 4,600 mm width
- Maximum thickness: 100 mm
Laser cutting delivers high precision (±0.1 mm) and smooth burr-free edges with minimal heat-affected zone, making it ideal for complex contours and tight-tolerance components.
2. Plasma Cutting
- Maximum dimensions: 30,000 mm length × 5,000 mm width
- Maximum thickness: 100 mm
Plasma cutting ensures fast, efficient processing for medium-thick plates (optimized for 6–60 mm), delivering moderate cost and moderate dimensional precision (±0.5 mm).
3. Flame Cutting
- Maximum dimensions: 40,000 mm length × 8,000 mm width
- Maximum thickness: 500 mm
Flame cutting is specially designed for ultra-thick plates and large structural components, capable of cutting special-shaped parts and grooves.
4. Waterjet Cutting
- Maximum dimensions: 12,000 mm length × 4,010 mm width
- Maximum thickness: 250 mm
Waterjet cutting produces clean edges with no thermal deformation (cold process, no heat-affected zone), making it perfect for high-precision industrial parts and heat-sensitive critical components.
Full-Range Custom Processing: Cutting, bending, welding, drilling, tapping, grinding, and painting-a complete manufacturing chain
GNEE STEEL is committed to delivering high-quality steel plate cutting solutions that meet international project standards. From raw NM500 plate to precision-cut finished components, GNEE offers the integrated "Material + Processing + Delivery" solution for customers in high-abrasion, heavy-load industries worldwide.
