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EN 31 Steel Supplier in India | Your Partner for High-Quality Bearing & Tool Steel
Introduction to EN 31 Steel
EN 31 steel is a premium high-carbon chromium alloy steel renowned for its exceptional hardness, wear resistance, and high compressive strength. This grade is widely recognized as a classic bearing steel due to its ability to achieve a very high hardness after heat treatment. It is a highly reliable material for components that will be subjected to high friction and wear. At Jupiter Steels, based in Delhi, we are a trusted stockist and supplier of EN 31 steel, providing certified material to customers throughout India, including key industrial regions like Manesar, Haryana, and beyond.
Chemical Composition of EN 31 Steel
The reliable performance of EN 31 steel is a direct result of its carefully controlled chemical composition. The key alloying elements and their typical weight percentages are:
- Carbon (C): 0.95 – 1.10%
- Manganese (Mn): 0.40 – 0.70%
- Chromium (Cr): 1.00 – 1.60%
- Silicon (Si): 0.10 – 0.40%
- Sulfur (S): Max 0.05%
- Phosphorus (P): Max 0.05%
Functioning and Reasoning of Chemical Elements
- High Carbon (C) & Chromium (Cr): The combination of high carbon and chromium is the defining feature of EN 31 steel. The high carbon content allows it to be hardened to an extremely high level, while the chromium enhances its hardenability and forms hard chromium carbides that provide exceptional wear resistance and improve its compressive strength.
- Manganese (Mn): Manganese improves the steel’s hardenability and tensile strength.
Hardness, Properties, and Applications of EN 31
Hardness
After heat treatment, EN 31 steel can achieve a very high working hardness, typically in the range of 60-64 HRC, which is critical for bearing and tool applications.
Properties
- Exceptional Wear Resistance: This is its most well-known property. Its high hardness and carbide content make it highly resistant to abrasive wear, extending the life of components.
- High Compressive Strength: It can withstand heavy compressive loads without deforming.
- Good Fatigue Strength: Its properties make it a good choice for parts that undergo repeated loading.
- Excellent Hardenability: It can be through-hardened, ensuring uniform properties through its cross-section.
Applications
EN 31 steel is a versatile grade used for a wide range of bearing and tool components. Key applications include:
- Ball Bearings and Roller Bearings
- Gauges and Bushings
- Rollers and Master Tools
- Cutting Tools
- General engineering components that require high wear resistance.
Why Choose Jupiter Steels for EN 31?
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 EN 31 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.
EN 31 Steel FAQ Section
Q1: What is EN 31 steel used for?
A: EN 31 steel is primarily used for bearings, gauges, and other components that require exceptional wear resistance and high hardness.
Q2: Does EN 31 steel require heat treatment?
A: Yes, EN 31 steel is typically supplied in an annealed condition and requires a specific hardening and tempering process to achieve its high working hardness.
Q3: Is EN 31 a tool steel?
A: While it is primarily a bearing steel, its high hardness and wear resistance properties also make it suitable for a variety of tool-making applications.
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