Sahil Metals, located in Riyadh, Saudi Arabia, stands out as a reliable supplier and manufacturer of high-performance tool steels tailored for precision machining and industrial cutting tasks. Among their top-notch products are the **High Speed Steel M2 Bars**, celebrated for their remarkable hardness, wear resistance, and red hardness — which means they maintain their strength even at high temperatures. These M2 HSS bars are extensively utilized in the toolmaking, automotive, and aerospace sectors, and Sahil Metals ensures they meet international quality standards, providing consistent performance in challenging environments throughout Saudi Arabia and the GCC.
The composition of **High Speed Steel M2 Bars** typically includes carbon (0.85%), tungsten (6%), molybdenum (5%), chromium (4%), vanadium (2%), with the remainder being iron. This alloy strikes a great balance between toughness, hardness, and grindability. After undergoing heat treatment, M2 achieves a hardness rating of 62–65 HRC, allowing it to keep its cutting edge even at temperatures above 500°C. Its exceptional wear resistance and toughness make it one of the most popular grades of high-speed steel globally.
| ASTM A600 | C | Mn | P | S | Si | Cr | V | Mo | W | |||||||
| M2 regular C | 0.78 | 0.88 | 0.15 | 0.40 | 0.03 | 0.03 | 0.20 | 0.45 | 3.75 | 4.50 | 1.75 | 2.20 | 4.50 | 5.50 | 5.50 | 6.75 |
| DIN ISO 4957 | C | Mn | P | S | Si | Cr | V | Mo | W | |||||||
| 1.3343 | 0.86 | 0.94 | … | … | … | … | … | 0.45 | 3.80 | 4.50 | 1.70 | 2.10 | 4.70 | 5.20 | 5.90 | 6.70 |
| JIS G4403 | C | Mn | P | S | Si | Cr | V | Mo | W | |||||||
| SKH51 | 0.80 | 0.88 | … | 0.40 | 0.03 | 0.03 | … | 0.45 | 3.80 | 4.50 | 1.70 | 2.10 | 4.70 | 5.20 | 5.90 | 6.70 |
| Mechanical properties | Metric | Imperial |
| Hardness, Rockwell C (tempered at 1150°F, quenched at 2200°F) | 62 | 62 |
| Hardness, Rockwell C (as hardened, quenched at 2200°F) | 65 | 65 |
| Compressive yield strength (when tempered at 300°F) | 3250 MPa | 471000 psi |
| Izod impact unnotched (when tempered at 300°F) | 67 J | 49.4 ft-lb |
| Abrasion (loss in mm3, as-hardened; ASTM G65) | 25.8 | 25.8 |
| Abrasion (loss in mm3, tempered at 1275°F; ASTM G65) | 77.7 | 77.7 |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Country | USA | German | Japan |
| Standard | ASTM A600 | DIN EN ISO 4957 | JIS G4403 |
| Grades | M2 | 1.3343 | SKH51 |
| Thermal properties | Metric | Imperial |
| CTE, linear (@20.0 – 100°C/ 68.0 – 212°F) | 10 μm/m°C | 5.56 μin/in°F |
| CTE, linear (@20.0 – 500°C/68.0 – 932°F) | 12.2 μm/m°C | 6.78 μin/in°F |
| CTE, linear (@20.0 – 850°C/68.0 – 1560°F) | 12.6 μm/m°C | 7 μin/in°F |
| DENSITY (G/CM 3) | 8.08 |
| DENSITY (LB/IN 3) | 0.292 |
| MELTING POINT (°C) | 1425 |
| MELTING POINT (°F) | 2600 |
Yes, High-Speed Steel M2 can be welded, but it requires careful heat control. Preheating, welding with proper filler material, and post-weld heat treatment are necessary to avoid cracking and preserve hardness.
High-Speed Steel M2 bars are not ideal for high-temperature applications, as they can lose hardness and wear resistance above 540°C, limiting their performance in extreme heat conditions.
High-Speed Steel M2 bars should be stored in a dry, cool environment to prevent corrosion. They should be kept off the ground, ideally on wooden or metal racks, and away from moisture or chemicals.
**M2 Bars** are perfect for crafting cutting tools like drills, taps, end mills, reamers, punches, and saw blades. They also find applications in precision dies, forming tools, and cold work scenarios. Thanks to their impressive red hardness and resistance to deformation, M2 bars excel in high-speed machining, high-pressure settings, and continuous cutting operations. Their reliability, ease of machining, and extended tool life make them a go-to choice in the metalworking and engineering industries.






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Sahil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Riyadh, Saudi Arabia
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