Tool steel is a type of alloy steel that is especially suited to metalworking, machining, and forging. One type of tool steel is Tool Steel M35, which is a high-speed tool steel with a cobalt content of 5.3%. It features great wear resistance and toughness, making it ideal for cutting applications. Let’s take a closer look at what makes Tool Steel M35 so special.
M35 Tool Steel Composition
UNS T11335 contains 5.3% cobalt and has excellent abrasion resistance and toughness properties. This alloy also contains carbon, chromium, molybdenum, tungsten, vanadium, and silicon for added strength and durability. The combination of these elements gives Tool Steel M35 the unique properties that make it so useful in metalworking applications.
| Element | Content (%) |
|---|---|
| C | 0.93 |
| Cr | 4.2 |
| Co | 4.9 |
| Fe | 76.52 |
| Mo | 5 |
| Si | 0.3 |
| W | 6.25 |
| V | 1.9 |
M35 Tool Steel Chemical Properties
Thanks to its impressive chemical properties, tool Steel M35 is an ideal choice for various tough jobs. Its high molybdenum content gives it excellent heat resistance, meaning that it can withstand temperatures reaching up to 1000°F. In addition, its carbide structure makes it incredibly resistant to wear and tear, ensuring durability over time. The alloy is also composed of trace amounts of cobalt, tungsten and carbon, which gives the material additional toughness. This makes Tool Steel M35 perfect for various applications, such as automotive parts and components manufacturing. In short, the unique chemical composition of Tool Steel M35 results in a durable alloy that can be used in numerous industries.
M35 Tool Steel Mechanical Properties
The mechanical properties of Tool Steel M35 include the following:
- A tensile strength of 1120-1300 MPa (162-188 ksi).
- An elongation of 13%.
- An impact energy (Charpy) value at 20°C (68°F) of 33 J/cm2.
| Mechanical properties | Metric | Imperial |
|---|---|---|
| Hardness, Rockwell C (oil quenched from 1232°C, 5 mins) | 64.8 | 64.8 |
| Hardness, Rockwell C (oil quenched from 1177°C, 5 mins) | 65.2 | 65.2 |
| Hardness, Rockwell C (oil quenched from 1204°C, 5 mins) | 65.2 | 65.2 |
| Modulus of elasticity | 207 GPa | 30000 ksi |
| Machinability (1% carbon steel) | 45.0 – 50.0% | 45.0 – 50.0% |
M35 Tool Steel Physical Properties
The physical properties include a density of 7.75 g/cm3 (0.281 lbs/in3). These physical and mechanical properties give m35 steel the strength needed for cutting applications and excellent shock resistance against high impacts or temperature changes.
| Physical properties | Metric | Imperial |
|---|---|---|
| Density | 8.14 g/cm3 | 0.294 lb/in3 |
M35 Tool Steel Thermal Properties
| Thermal properties | Metric | Imperial |
|---|---|---|
| CTE, linear (@21 – 399°C / 69.8 – 750°F) | 11.4 μm/m°C | 6.33 μin/in°F |
| CTE, linear (@21 – 593°C /69.8 – 1100°F) | 11.5 μm/m°C | 6.39 μin/in°F |
M35 Tool Steel Uses
Because it has such great wear resistance, high speed steel M45 is often used in cutting tools such as drills and taps as well as milling cutters and other cold-work tools that require good abrasion resistance but don’t need extreme hardness or heat treatment response like some other tool steels do
Corrosion Resistance
In addition to being highly resistant to wear and tear, it also has good corrosion resistance when exposed to water or acidic environments – making it suitable for various industrial applications where corrosion can be an issue.
Heat Resistance
Tool Steel M45 has good heat resistance due to its high chromium content, which helps prevent scaling during heat treatments like hardening or tempering processes. It can be hardened up to 63 HRC by using conventional heat treating methods such as quenching in oil followed by tempering for improved toughness without sacrificing too much hardness.
Heat Treatment
Additionally, this alloy can retain its hardness after long exposure times at normal temperatures without losing its performance characteristics – making it an ideal material for use in manufacturing environments where long run times are required without sacrificing quality or performance over time.
Machining
Due to its good machinability characteristics even when coolant is not used during the process, tool steel m45 can easily be machined using standard machine shop practices with minimal effort required compared to other materials commonly used in machine shops today, such as aluminium alloys or stainless steel grades 304L/316L respectively – allowing manufacturers to save time on production while still getting quality results from their workpiece material every time they use it in their processes.
Welding
Additionally, this alloy can be welded using standard arc welding procedures with shielding gas protection available if necessary, depending on the desired results from the welding process itself.
Conclusion
Tool Steel M45 is one of the best options available when looking for a versatile material that offers great wear resistance along with good corrosion protection when exposed to water or acidic environments – making it highly suitable for use in manufacturing industries where both qualities are important factors for proper product performance over time without having to sacrifice either one unnecessarily. Its combination of mechanical properties also make this alloy ideal for use in cutting tools like drills and taps along with milling cutters thanks to its ability to retain its hardness even after long exposure times at average temperatures without losing any performance characteristics whatsoever – allowing manufacturers everywhere get more out of their production runs no matter how many hours they put into them each day. With all these qualities combined together into one single package, there really isn’t any better material than Tool Steel M45 when you’re looking for something that’s both durable enough for daily industrial use yet still lightweight enough not to cause any major strain during operation thanks to its relatively low density compared with other similar materials currently available on the market today!
Meet Bhavesh, a seasoned blogger with a wealth of knowledge and experience. From metal products manufacturing to retail, Bhavesh has a diverse background in various industries and is dedicated to sharing his insights and expertise with readers.
