Anucha Metals is a leading manufacturer and distributor of **High Speed Steel M2 bars** from Bangkok, Thailand. Famed for their precision, consistency, and devotion to quality, Anucha Metals offers M2 HSS bars adhering to international standards of tool steels. These bars are designed for high-performance machining and cutting processes, providing superior durability and wear resistance. Used in industries like automotive, aerospace, tooling, and general engineering, Anucha Metals has gained the confidence of customers in Thailand and overseas for providing dependable M2 grade solutions suited to demanding production conditions.
**High Speed Steel M2 bars** consist of about 0.85% carbon, 6.0% tungsten, 5.0% molybdenum, 4.0% chromium, 2.0% vanadium, and traces of other elements. This gives a balanced combination of hardness, toughness, and red hardness — the power to maintain its cutting strength up to elevated temperatures. M2 HSS bars have superior wear resistance, superior edge retention, and good machinability. Mechanically, they provide high compressive strength and average impact resistance and are appropriate for a broad variety of high-speed cutting and forming operations where long tool life is crucial.
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.
**High Speed Steel M2 bars** are used extensively in manufacturing a variety of cutting tools like end mills, drill bits, reamers, taps, and saw blades. Their superior wear resistance and red hardness make them suitable for high-speed machining of ferrous and non-ferrous alloys. For precision tooling of complicated and high-stress machining operations in the automotive and aerospace sectors, M2 HSS bars are utilized. For die making, gear cutting, and punch tools in the general metalworking and engineering industries, they are also utilized. The M2 grade is favored for its toughness and cutting ability under conditions of high thermal and mechanical stresses.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Anucha Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Bangkok, Thailand
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