Mahadev Steel India

Mahadev Steel India is a premier importer of European-make Jethete M152 round bars. As a market leader and one of India’s largest stockholders, we bridge the gap between global manufacturing excellence and domestic industrial demand. We maintain a ready inventory with a size range from 50 mm to 300 mm diameter, offering specialized cut-to-size services to meet your exact engineering drawings.

Jethete M152 is a nitrogen-bearing, 12% chromium martensitic stainless steel. It is engineered for high-stress components that require superior creep-rupture strength and toughness at elevated temperatures.

• Standard Designations: UNS S64152, AMS 5719, BS S151, BS S159.

• Werkstoff Number: 1.4933 / 1.4939.

• Origin: Exclusively European Make (High-purity melt).

At Mahadev Steel India, we prioritize availability and precision:

• Size Range: 50 mm to 300 mm Diameter.

• Supply Scope: Pan-India delivery with rapid transit times.

• Customization: Advanced band-saw cutting facilities for customized lengths and blanks.

The addition of Nickel, Molybdenum, and Vanadium provides the alloy with its signature strength and heat resistance.

M152 is valued for maintaining high mechanical integrity up to 560°C.

• Tensile Strength: 1000 – 1150 MPa

• Yield Strength: 800 MPa (Minimum)

• Elongation: 15% (Minimum)

• Reduction of Area: 45% (Minimum)

• High-Temperature Stability: Designed specifically for the transition zones of turbines where heat and stress are simultaneous.

• Excellent Hardenability: Uniform mechanical properties throughout the cross-section of large diameter bars (up to 300 mm).

• Fracture Toughness: Superior resistance to crack propagation compared to standard 12% Cr steels.

• Corrosion Resistance: Good resistance to atmospheric oxidation and mild corrosive media.

Our Jethete M152 round bars are widely utilized in critical sectors across India:

• Aerospace: Jet engine compressor blades, discs, and shafts.

• Power Plants: High-pressure steam turbine bolting and fasteners.

• Oil & Gas: High-strength mechanical components for downhole tools.

• Motorsports: High-performance engine parts subjected to thermal cycling.

1. European Quality: We strictly import from Tier-1 European mills to ensure zero impurities and consistent grain structure.

2. Certification: All material is supplied with EN 10204 3.1 Mill Test Certificates.

3. Testing: 100% Ultrasonic (UT) and PMI tested material.

4. National Presence: Capable of handling bulk orders and small-scale custom requirements with equal efficiency.

Mahadev Steel India The Trusted Name for Jethete M152 Round Bars in India.

Mahadev Steel India stands as a dominant force in the Indian specialty steel market. As a specialized importer of European-make M152, we bridge the gap between global manufacturing standards and domestic industrial demand. With a robust inventory and Pan-India supply capabilities, we cater to the most stringent engineering requirements.

We understand that precision is non-negotiable in high-performance engineering.

• Size Availability: 50 mm to 300 mm Diameter (Ready Stock).

• Inventory Origin: Exclusively European Mills (ensuring superior grain structure and chemical purity).

• Processing: Advanced Band Saw Cutting facilities available. We provide "Cut-to-Size" blanks to reduce your machining time and material wastage.

• Supply Reach: Seamless logistics and door-step delivery across all industrial hubs in India.

M152 is a nitrogen-strengthened, 12% Chromium martensitic stainless steel, optimized for high-stress components.

To achieve its peak mechanical properties, M152 typically undergoes the following process:

1. Hardening: Heat to $1050^\circ C$, followed by oil or air cooling.

2. Tempering: Double tempering between $560^\circ C$ and $590^\circ C$ to stabilize the martensitic structure and ensure stress relief.

• Thermal Conductivity: 24 $W/m\cdot K$ (at $100^\circ C$)

• Modulus of Elasticity: 200 $GPa$

• Specific Heat: 460 $J/kg\cdot K$

• Coefficient of Thermal Expansion: $11.2 \times 10^{-6}/^\circ C$ (between $20-200^\circ C$)

• Quality Assurance: Every bar is supplied with a Mill Test Certificate (MTC) as per EN 10204 3.1, including chemical analysis and mechanical testing.

• Strict Tolerances: Our European-make bars offer superior surface finish and dimensional accuracy, minimizing tool wear during your CNC operations.

• Material Integrity: 100% Ultrasonic Tested (UT) to ensure zero internal defects or porosity, critical for aerospace and turbine applications.

• Corrosion Resistance: Offers significantly better resistance to atmospheric corrosion and mild acids compared to standard 400-series stainless steels.

• Gas Turbine Technology: Disc forgings, casing bolts, and shafting.

• Steam Turbines: High-pressure valve stems and structural fasteners.

• Defense & Aerospace: Structural components requiring high strength-to-weight ratios at elevated temperatures.

• Motorsports: High-performance engine valves and transmission components.

Mahadev Steel India

Leading Importer & National Supplier of Premium Alloy Steels.

Service: Pan-India Distribution.

Mahadev Steel India is a premier importer of European-make M152 (Jethete) round bars. As one of India's largest stockholders and suppliers, we provide high-performance solutions for high-stress and high-temperature environments.

M152, also known as Jethete M152, is a nitrogen-bearing, hardenable 12% chromium martensitic stainless steel. It is specifically designed to offer excellent toughness, creep rupture strength, and oxidation resistance at elevated temperatures up to 560°C (1040°F).

• Common Names: Jethete M152, Alloy M152

• Equivalent Standards: UNS S64152, DIN 1.4933, AMS 5719, BS S151, BS S159, MSRR 6503.

• Tensile Strength: 1034–1104 MPa (approx. 150-160 ksi)

• Yield Strength (0.2% Offset): 827–966 MPa (approx. 120-140 ksi)

• Elongation: 15% - 20%

• Hardness: 311 - 375 HBW (Rockwell C 32-38)

• Density: 7.75 $g/cm^3$

Mahadev Steel India maintains a significant inventory of European-origin material to ensure the highest purity and performance standards.

• Size Range: 50 mm to 300 mm Diameter.

• Form: Round Bars, Bright Bars, Forged Bars.

• Customization: Full length and cutting-to-size facilities available to meet specific project requirements.

• Make: European (Certified Mills).

• Testing: 100% Ultrasonic Tested (UT), PMI Tested, and accompanied by EN 10204 3.1 Mill Test Certificates.

• Superior Toughness: Combines high tensile strength with excellent notch tolerance.

• High Temperature Stability: Maintains mechanical integrity and resists creep rupture in extreme heat.

• Machinability: Excellent workability compared to other 12% Cr alloys; maintains constant feeds/speeds.

• Corrosion Resistance: Resistant to oxidation and stress corrosion cracking in industrial environments.

Due to its robust nature, M152 is primarily used in:

• Aerospace: Turbine blades, discs, and shafts for jet engines.

• Power Generation: High-temperature fasteners, bolts, and rings for land-based turbines.

• Oil & Gas: Drilling equipment and mechanical gears subjected to heavy stress.

• Mechanical Engineering: High-strength structural components and landing gears.

Mahadev Steel India

Your Trusted Partner for Specialized Alloy Steels.

Supplying across India with ready stock and customized cutting solutions.