Phehlukwayo Metal, based in Cape Town, South Africa, stands out as a top manufacturer and supplier of high-quality metals, with a special focus on High Speed Steel (HSS) M42 Bars. Renowned for its precision, quality, and dependability, the company crafts products that meet the tough demands of today’s industries. Their M42 Bars are made using cutting-edge metallurgical techniques, ensuring exceptional hardness, wear resistance, and performance even in high-temperature environments. Catering to sectors like automotive, aerospace, and heavy machinery, Phehlukwayo Metal provides materials that boost productivity, uphold precision, and offer long-lasting durability, solidifying its reputation as a reliable partner in South Africa’s industrial scene.
High Speed Steel M42 Bars are crafted with about 1.1% carbon, 4% chromium, 9% molybdenum, 8% cobalt, 1.5% vanadium, and 1% tungsten, resulting in remarkable hardness, toughness, and red-hardness properties. Mechanically, these bars showcase high tensile strength, outstanding wear resistance, and the ability to maintain cutting efficiency at elevated temperatures. The cobalt content enhances hot hardness, making M42 perfect for high-speed cutting tasks. Its uniform microstructure guarantees consistent performance, while excellent edge retention allows tools to endure heavy-duty machining, making M42 Bars a go-to choice in precision engineering and demanding industrial applications.
| ASTM A600 | C | Mn | P | S | Si | Cr | V | Mo | W | Co | ||||||||
| M42 | 1.05 | 1.15 | 0.15 | 0.40 | 0.03 | 0.03 | 0.15 | 0.65 | 3.50 | 4.25 | 0.95 | 1.35 | 9.00 | 10.00 | 1.15 | 1.85 | 7.75 | 8.75 |
| DIN ISO 4957 | C | Mn | P | S | Si | Cr | V | Mo | W | Co | ||||||||
| 1.3247/HS2-9-1-8 | 1.05 | 1.15 | … | … | … | … | … | 0.70 | 3.50 | 4.50 | 0.90 | 1.30 | 9.00 | 10.00 | 1.20 | 1.90 | 7.50 | 8.50 |
| JIS G4403 | C | Mn | P | S | Si | Cr | V | Mo | W | Co | ||||||||
| SKH59 | 1.05 | 1.15 | … | 0.40 | 0.03 | 0.03 | … | 0.70 | 3.50 | 4.50 | 0.90 | 1.30 | 9.00 | 10.00 | 1.20 | 1.90 | 7.50 | 8.50 |
| Mechanical Properties | Metric | Imperial |
| Hardness, Rockwell C (oil quenched from 1204°C, 5 minutes) | 64.3 | 64.3 |
| Hardness, Rockwell C (oil quenched from 1177°C, 5 minutes) | 65.5 | 65.5 |
| Hardness, Rockwell C(oil quenched from 1163°C) | 65.8 | 65.8 |
| Izod impact unnotched (oil quenched at 1191°C; 510°C temper temperature) | 13.6 J | 10.0 ft- lb |
| Izod impact unnotched (oil quenched at 1191°C; 622°C temper temperature) | 24.4 J | 24.4 J |
| Machinability (1% carbon steel) | 35.0 – 40.0% | 35.0 – 40.0% |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elastic modulus | 190-210 GPa | 27557-30457 ksi |
| Country | USA | German | Japan |
| Standard | ASTM A600 | DIN EN ISO 4957 | JIS G4403 |
| Grades | M42 | 1.3247/HS2-9-1-8 | SKH59 |
Yes, High-Speed Steel M42 can be welded, but it requires specialized techniques like preheating, post-weld heat treatment, and using appropriate filler materials to avoid cracking and maintain its properties.
Yes, High Speed Steel M42 bars are recyclable. They can be melted and reused in manufacturing, reducing waste and conserving resources, making them an environmentally friendly material choice.
High-Speed Steel M42 bars should be stored in a dry, cool environment, protected from moisture and corrosion. Ensure they are placed on clean, stable surfaces to prevent damage and maintain quality.
High Speed Steel M42 Bars find extensive use in creating cutting tools like drills, taps, milling cutters, reamers, and lathe tools. Their exceptional hardness and heat resistance make them ideal for machining both ferrous and non-ferrous metals at high speeds. Beyond cutting tools, M42 Bars are utilized in industries that require wear-resistant components, including aerospace, automotive, and die-making sectors. Their ability to maintain strength and sharpness under extreme conditions ensures reliable performance, a long service life, and dependability, making them an essential choice for professionals in the field.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Phehlukwayo Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Cape Town, South Africa
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