Sichuan Liaofu Special Steel Company is one of the most experienced manufacturers and suppliers of m2 high speed tool steel bars in China. With over 20 years' experience, our factory offer high quality products made in China with competitive price. Welcome to contact us for wholesale service.
M2 High Speed Tool Steel Bars are widely known for their superior strength and durability. Made from high-speed tungsten-molybdenum tool steel, M2 bars are an excellent choice for manufacturing a variety of tools, including drill bits, taps, and reamers.
One of the key features of M2 High Speed Tool Steel Bars is their small and evenly distributed carbides. This helps to provide exceptional wear resistance, making M2 bars suitable for use in high-stress environments. Additionally, after heat treatment, the hardness of M2 bars is comparable to T-1, but with greater bending strength of up to 4700 Mpa.
Notably, M2 bars also exhibit higher toughness and thermoplasticity than T-1 by 50%, making them an exceptional choice for applications where precision and strength are critical. However, it is important to note that M2 bars do have a higher sensitivity to decarbonization.
| C | CO | CR | MN | MO | NI | P | S | SI | V | W |
|---|---|---|---|---|---|---|---|---|---|---|
| 0.78 – 1.05 | 3.75 – 4.50 | 0.15 – 0.40 | 4.50 – 5.50 | 0.30 Max. | 0.03 Max. | 0.03 Max. | 0.20 – 0.45 | 1.75 – 2.20 | 5.50 – 6.75 |
Size Availability:
Flats • Hollowbar • Metric • Non-Standard • Rounds • Squares • Standard
M2 High Speed Tool Steel Bars are versatile and high-performance tools that can be used in a variety of industries. These bars are available in a range of shapes including flats, hollow bars, metric, non-standard, rounds, squares, and standard.
The use of M2 High Speed Tool Steel Bars is widespread, including the aerospace, automobile, defense, and manufacturing industries. The bars are prized for their high wear resistance, toughness, and ability to hold a sharp edge. They are also heat and corrosion resistant, making them ideal for use in harsh environments.
M2 High Speed Tool Steel Bars come in a range of sizes to suit any application. The bars can be used for cutting, drilling, and shaping a variety of materials including metal, wood, plastic, and more. Their versatility and durability make M2 High Speed Tool Steel Bars an essential tool for any industry that requires precise and reliable cutting and shaping.
Products application
| Blanking Dies | Boring Tools | Broaches |
| Center Drills | Gear Cutters | Lamination Dies |
| Lathe Tools | Mandrels | Milling Cutters |
| Planer Tools | Punches | Reamers |
| Router Bits | Shear Blades | Taps |
| Thread Chasers | Twist Drills | Wood Knives |
Designations:
AISI M2 High Speed Steel-US AFNOR 06-05-04-02-France DIN 1.3343-Germany UNI KU-Italy JIS SKH9-Japan SS 2722-Sweden B.S. BM 2-United Kingdom ASTM A600-US FED QQ-T-590-US SAE J437-US SAE J438-US UNS T11302-US
| Treatment | Temperature Range | Cooling/Quenching | Notes |
|---|---|---|---|
| Forging | 1975-2075° F | Slow. | Do not forge below 1700° F. Anneal after forging. |
| Annealing | 1550-1600° F | Cool slowly at a rate of 35° F per hour to 1000° F | For best results, insulating media is desirable. Hold at temperature for 2 hours. |
| Stress Relieving | 1100-1300° F | Cool slowly | Stress relieve after rough machining |
| Preheating | 1500-1550° F | Preheat time in furnace is ¾ Hr. per inch of thickness. Heating up to temperature as slow as possible. | |
| Hardening | 2225-2275° F (furnace) 2200-2225° F (salt bath) | Quench in air or warm oil. To minimize quenching strains, quench in salt at 1000° F | For maximum wear resistance, harden at 2275° F. For maximum toughness and high hardness, harden at 2200° F. |
| Tempering | (See Chart) | Double tempering is required. The usual tempering time is 2+2 hours. Recommended temperature is 1000-1075° F. |
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