20MnCr5 Steel – Durable, High-Strength Case-Hardening Alloy

20MnCr5 Steel – Durable, High-Strength Case-Hardening Alloy

At Amardeep Steel Centre, we take pride in manufacturing and supplying 20MnCr5 steel, a low-alloy case-hardening steel recognized for its superior mechanical properties, wear resistance, and core toughness. This steel is the backbone of numerous industries, including automotive, heavy machinery, agriculture, and general engineering, where reliability and performance are non-negotiable.

If you are looking for a dependable steel supplier that meets international standards and delivers exceptional quality, your search ends here.

What is 20MnCr5 Steel?

20MnCr5 steel is a chromium-enriched alloy designed for case-hardening applications. It is highly regarded for its ability to combine a hard, wear-resistant surface with a tough, impact-resistant core. This makes it a preferred choice for components subjected to high loads, stress, and friction.

Key Features of 20MnCr5 Steel:

  1. Core Strength: Ensures tensile strength ranging from 1000 to 1300 N/mm².
  2. Exceptional Durability: Handles both static and dynamic stress effectively.
  3. Case Hardening Capability: Achieves customizable surface hardness through carburizing or carbonitriding.
  4. Machinability: Excellent machinability for ease of processing in various forms.
  5. Versatility: Widely used across multiple industries due to its superior properties.

What Makes 20MnCr5 Unique?

The addition of Chromium enhances its wear resistance and core toughness. The steel’s ability to undergo advanced heat treatments like carburizing and tempering ensures that it remains durable in the most demanding conditions.

Applications of 20MnCr5 Steel

Automotive Industry:

  1. Gears: High wear resistance and strength make it suitable for gears enduring continuous motion.
  2. Axles and Crankshafts: Tough core properties provide reliability under extreme stress.
  3. Camshafts and Transmission Parts: Precision and durability ensure seamless performance in high-speed operations.

Industrial Machinery:

  1. Rotating Shafts and Pinions: Widely used in heavy machinery due to its robustness.
  2. Machine Tools: Ideal for parts requiring precision and wear resistance.
  3. Construction Equipment: Ensures reliable operation in harsh environments.

Agricultural Sector:

  1. Tractor Gears: Withstands wear and tear under heavy agricultural usage.
  2. Threshing Machines: Provides durability and resistance for critical load-bearing components.

Energy Sector:

  1. Wind Turbine Components: Used in gears and transmission systems for long-lasting performance.

General Engineering:

  1. Spindles and Control Parts: Commonly used in industrial tools and systems for enhanced reliability.
  2. Precision Components: Perfect for manufacturing cams, shafts, and gearboxes.

Technical Specifications of 20MnCr5 Steel

Chemical Composition (EN 10084:2008):
Element Range (%)
Carbon 0.17–0.22
Silicon 0.15–0.40
Manganese 1.1–1.4
Phosphorus Max 0.025
Sulfur 0.015–0.035
Chromium 1.0–1.3

Mechanical Properties:

  • Ultimate Tensile Strength (UTS): 980 N/mm² (minimum).
  • Elongation: Minimum 8%.
  • Impact Strength: 3.8 kgm (minimum).

Heat Treatment Parameters:

  1. Carburizing: Surface hardening at 900–950°C.
  2. Hardening: Core strength enhancement at 850–880°C.
  3. Tempering: Stabilizes steel at 150–200°C, preventing brittleness.
  4. Soft Annealing: Improves machinability by reducing internal stress (650–700°C).

Manufacturing Excellence at Amardeep Steel Centre

We manufacture 20MnCr5 steel in multiple forms to meet varied industrial needs. Our advanced facilities ensure precision, quality, and compliance with global standards.

Products We Offer:

  • Hot Rolled Round Bars: Available in diameters ranging from 23.5 mm to 80 mm.
  • Cold Drawn Bright Bars: Sizes from 22 mm to 63.5 mm.
  • Round Cornered Squares (RCS): Sizes of 55 mm, 63 mm, and 75 mm.

Advanced Manufacturing Processes:

  1. Soft Annealing: Prepares steel for machining by reducing hardness.
  2. Precision Cutting: Ensures exact sizes and dimensions as per client requirements.
  3. Carburizing and Hardening: Enhances surface hardness and core durability.
  4. Quality Inspections: Every batch is tested to ensure it meets stringent quality standards.

Quality Assurance and Testing

Quality is at the heart of everything we do at Amardeep Steel Centre. Each batch of 20MnCr5 steel undergoes rigorous testing to ensure it meets industry standards.

Our Testing Process Includes:

  • Chemical Composition Analysis: Ensures consistency in elemental properties
  • Mechanical Testing: Verifies tensile strength, elongation, and impact resistance.
  • Non-Destructive Testing (NDT): Includes ultrasonic and magnetic particle inspection (MPI)
  • Visual and Dimensional Checks: Ensures precision in size and shape.

Certifications and Compliance:

  1. Test certificates are issued with every consignment.
  2. Third-party inspections can be arranged upon request to meet specific requirements.

Why Choose Amardeep Steel Centre?

Amardeep Steel Centre is a trusted partner for industries requiring high-quality alloy steels.

Why Work With Us?

  1. Expertise in Manufacturing: Decades of experience in producing world-class alloy steels.
  2. Custom Solutions: Tailored products to meet the unique needs of various industries.
  3. Global Reach: Reliable supplier to domestic and international markets, including UAE and Europe.
  4. Competitive Pricing: Fair and transparent pricing without compromising on quality.
  5. Sustainability Commitment: Environmentally friendly manufacturing practices.

Markets We Serve:

We supply 20MnCr5 steel across India (Mumbai, Pune, Bangalore, Ahmedabad) and internationally to the UAE, Europe, and more.

How to Order 20MnCr5 Steel from Us?

Minimum Order Quantity: 3 MT per size
Length Options:

  • Standard lengths of 5–6 meters
  • Custom lengths available on request

Conditions Available:

  1. Hot Rolled
  2. Bright Bar
  3. Cold Drawn & Polished

Frequently Asked Questions (FAQs)

1. What are the main advantages of 20MnCr5 steel?

20MnCr5 steel provides high tensile strength, excellent wear resistance, and the ability to achieve customizable hardness through case-hardening processes like carburizing.

2. Is 20MnCr5 steel suitable for automotive gears?

Yes, its wear resistance and toughness make it an ideal choice for gears, shafts, and other automotive components.

3. Can you customize the dimensions of 20MnCr5 steel bars?

Absolutely. We provide customized dimensions and finishes to meet your specific requirements.

4. What is the typical heat treatment for 20MnCr5 steel?

It undergoes carburizing at 900–950°C, hardening at 850–880°C, and tempering at 150–200°C for optimal properties.