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M42 Steel Supplier in India | High-Performance Cobalt High-Speed Steel
Introduction to M42 Steel
M42 steel is a premium, high-cobalt, high-molybdenum high-speed steel known for its exceptional hot hardness, toughness, and superior wear resistance. This grade is specifically engineered to perform at elevated temperatures, making it a top choice for demanding cutting applications where other high-speed steels would fail. Its high cobalt content gives it a distinct advantage in maintaining its hardness and cutting ability even when red hot. At Jupiter Steels, based in Delhi, we are a trusted stockist and supplier of M42 steel, providing certified material to customers throughout India, including key industrial regions like Manesar, Haryana, and beyond.
Chemical Composition of M42 Steel
The outstanding performance of M42 steel is a direct result of its carefully controlled chemical composition. The key alloying elements and their typical weight percentages are:
- Carbon (C): 1.05 – 1.15%
- Tungsten (W): 1.15 – 1.85%
- Chromium (Cr): 3.50 – 4.25%
- Vanadium (V): 0.90 – 1.25%
- Molybdenum (Mo): 9.00 – 10.00%
- Cobalt (Co): 8.00 – 9.00%
Functioning and Reasoning of Chemical Elements
- Cobalt (Co): The high cobalt content is the defining feature of M42 steel. Cobalt significantly increases the steel’s hot hardness, allowing it to maintain a sharp edge and cut effectively even at high operating temperatures.
- Molybdenum (Mo) & Tungsten (W): This combination forms hard carbides that contribute to the steel’s excellent wear resistance and hardenability.
- Vanadium (V): Vanadium forms extremely hard carbides, which further enhance the steel’s resistance to abrasive wear.
Hardness, Properties, and Applications of M42
Hardness
After heat treatment, M42 steel can achieve a very high working hardness, typically in the range of 65-68 HRC, which is critical for its performance in cutting applications.
Properties
- High Hot Hardness: This is its most well-known property. It retains its hardness and cutting edge even at elevated temperatures caused by high-speed friction.
- Exceptional Wear Resistance: The high volume of carbides makes it highly resistant to abrasive wear, extending the life of tools.
- Good Toughness: Despite its high hardness, it provides a good balance of toughness, which helps to prevent chipping and fracturing.
Applications
M42 high-speed steel is extensively used for cutting tools that operate at high speeds and temperatures. Key applications include:
- Drill Bits and Taps
- Milling Cutters and End Mills
- Broaching Tools
- Saw Blades
- Forming Dies where high wear resistance is required
Why Choose Jupiter Steels for M42?
As a premier steel stockist in India, Jupiter Steels is your reliable partner. We are committed to providing you with top-notch materials and service.
- Certified Quality: We supply high-quality, genuine M42 steel that meets international standards. Our reputation for excellence is a promise to our customers.
- Nationwide Supply Chain: While based in Delhi, our robust logistics network allows us to provide high-quality steel to customers across India, including Haryana, Manesar, Rajasthan, and other industrial areas.
- Expert Guidance: Our team has extensive knowledge of different steel grades. We don’t just sell steel; we provide expert advice to help you select the right material for your specific application.
M42 Steel FAQ Section
Q1: What is M42 steel used for?
A: M42 steel is primarily used for high-performance cutting tools that operate at high speeds and cut difficult-to-machine materials.
Q2: What is the main benefit of using M42 steel?
A: The main benefit is its exceptional hot hardness and high wear resistance, which allows it to maintain its cutting ability at elevated temperatures.
Q3: Is M42 suitable for cold work applications?
A: While it can be used for some cold work applications, M42 is optimized for high-speed cutting. Other tool steels are often better suited and more cost-effective for pure cold work.
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