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440C Stainless Steel Sheets: Price, Suppliers, and Specifications

Are you navigating the complex market of 440C stainless steel sheets and seeking the best deals in India? Whether you’re an industrial buyer, engineer, or manufacturer, understanding the nuances of pricing, suppliers, and specifications can significantly impact your purchasing decisions. This article unravels the intricate details of 440C stainless steel sheets, offering a comprehensive guide on their chemical composition, mechanical properties, and market trends. Discover the leading suppliers in India and explore the diverse applications that make 440C stainless steel a preferred choice in various industries. Ready to delve deeper into the world of 440C stainless steel? Let’s get started!

Introduction

Overview of 440C Stainless Steel Sheets

440C stainless steel is renowned for its exceptional hardness and wear resistance, making it a top choice in various industries. This high-carbon martensitic stainless steel is particularly valued for its ability to maintain sharp edges and endure high-stress environments. Additionally, the high chromium content in 440C stainless steel provides excellent corrosion resistance, making it suitable for a range of domestic and industrial applications.

Key Features

High Carbon Content

The high carbon content in 440C stainless steel boosts its hardness and strength, making it ideal for durable, high-performance components. This property is crucial for applications that require materials to withstand significant stress and wear.

Corrosion Resistance

With 16-18% chromium, 440C stainless steel resists corrosion and oxidation, making it perfect for moist and corrosive environments. This characteristic ensures longevity and reliability, even in challenging conditions.

Versatility and Applications

Thanks to its strength, hardness, and corrosion resistance, 440C stainless steel is used in a wide range of applications, from aerospace and automotive to medical instruments and industrial machinery.

Aerospace Industry

In the aerospace industry, 440C stainless steel is used for components such as turbine blades and structural parts. Its ability to withstand extreme temperatures and harsh conditions makes it an ideal material for these critical applications.

Medical Instruments

The high hardness and corrosion resistance of 440C stainless steel make it suitable for surgical instruments and medical devices. These properties ensure that the instruments remain sharp and free from corrosion, even after repeated sterilization.

Industrial Equipment

440C stainless steel is widely used in the manufacturing of industrial equipment, such as valves, bearings, and molds. Its wear resistance and durability ensure long service life and reliable performance in demanding industrial environments.

Conclusion

The introduction of 440C stainless steel sheets underscores their critical role in various industries. Their unique properties, including high hardness, wear resistance, and excellent corrosion resistance, make them indispensable for applications requiring robust and reliable materials. Understanding these features and their applications provides a solid foundation for further exploration of 440C stainless steel sheets in industrial contexts.

Overview of 440C Stainless Steel

Introduction to 440C Stainless Steel

Known for its exceptional hardness and wear resistance, 440C stainless steel is a high-performance material widely used in demanding industries. It stands out for its ability to withstand extreme stress and maintain its properties under challenging conditions, making it a preferred choice for high-performance components.

Key Features and Benefits

High Carbon Content for Superior Hardness

Its high carbon content, ranging from 0.95% to 1.20%, allows 440C to achieve exceptional hardness after heat treatment, making it ideal for applications requiring durability and sharpness.

Chromium for Corrosion Resistance

With a chromium content of 16-18%, 440C provides moderate resistance to corrosion and oxidation. This ensures durability in environments with exposure to moisture or mild corrosive agents, extending the material’s service life.

Martensitic Structure

440C’s martensitic structure enables heat treatment that enhances its strength, wear resistance, and performance under high loads. This structure contributes to its high tensile strength, excellent wear resistance, and ability to maintain performance in demanding applications.

Mechanical Properties

Hardness

440C stainless steel can achieve a hardness range of 58-60 HRC after proper heat treatment. This makes it one of the hardest alloys in the stainless steel family, ideal for cutting tools, molds, and bearings.

Strength and Ductility

When annealed, 440C exhibits a tensile strength of approximately 760 MPa and a yield strength of 425 MPa. After tempering, these values can significantly increase, demonstrating the material’s adaptability to various performance requirements.

Thermal and Elastic Properties

  • Thermal Conductivity: 24.2 W/m*K at 100°C, ensuring efficient heat transfer in high-temperature applications.
  • Elastic Modulus: Around 200 GPa, providing excellent rigidity and resistance to deformation under stress.

Versatility Across Applications

Thanks to its unique combination of properties, 440C stainless steel serves a wide range of industries. Key applications include:

  • Bearings and Valves: Its wear resistance and hardness make it ideal for rolling contact bearings and industrial valves that operate in high-friction environments.
  • Cutlery and Tools: The material’s ability to hold a sharp edge makes it a popular choice for knives, surgical instruments, and precision tools.
  • Aerospace Components: Used in turbine blades and structural parts, 440C withstands extreme temperatures and stress conditions.
  • Industrial Equipment: Commonly used in molds, dies, and other equipment subjected to heavy wear and tear.

Limitations and Considerations

While 440C stainless steel offers many advantages, its corrosion resistance is moderate compared to austenitic stainless steels. Additionally, its high hardness can make machining more challenging, requiring specialized tools and techniques.

By balancing its strengths and limitations, 440C stainless steel continues to be a reliable choice for demanding applications requiring a combination of hardness, wear resistance, and moderate corrosion protection.

Chemical Composition and Mechanical Properties

440C Stainless Steel: Composition, Properties, and Applications

440C stainless steel is a high-carbon, martensitic alloy known for its exceptional hardness and moderate corrosion resistance, making it ideal for high-stress applications.

Chemical Composition and Corrosion Resistance

The chemical composition of 440C stainless steel directly influences its properties, including corrosion resistance. The key elements are:

  • Carbon (C): 0.95-1.20%
    Enhances hardness and wear resistance.
  • Chromium (Cr): 16-18%
    Provides corrosion resistance by forming a protective oxide layer.
  • Manganese (Mn): ≤1%
    Improves toughness and hardenability.
  • Silicon (Si): ≤1%
    Enhances strength and oxidation resistance.
  • Molybdenum (Mo): ≤0.75%
    Increases corrosion resistance in environments with chlorides or acids.
  • Phosphorus (P): ≤0.04%
    Minimizes brittleness.
  • Sulfur (S): ≤0.03%
    Improves machinability while maintaining toughness.

Hardness and Wear Resistance

440C stainless steel is renowned for its high hardness, ranging between 58-60 HRC after heat treatment. This makes it one of the hardest alloys within the stainless steel family. The high carbon and chromium content provide excellent wear resistance. This ensures 440C stainless steel can endure prolonged use in high-friction environments without significant surface degradation.

Mechanical Properties

440C stainless steel exhibits impressive mechanical properties:

  • Tensile Strength: 760 MPa to 1970 MPa, depending on heat treatment.
  • Yield Strength: 450 MPa to 1900 MPa, depending on heat treatment.
  • Elastic Modulus: Approximately 200 GPa, providing excellent rigidity.
  • Elongation: Up to 13% in the annealed state, decreasing significantly after heat treatment.
  • Density: 7.80 g/cm³
  • Thermal Conductivity: 24.2 W/m*K at 100°C
  • Melting Point: Approximately 1483°C

Heat Treatment

Heat treatment processes like annealing, hardening, and tempering adjust the steel’s hardness, machinability, and toughness to meet specific application needs.

  • Annealing reduces internal stresses and enhances machinability.
  • Hardening involves heating to 1010-1070°C, followed by rapid quenching to achieve maximum hardness and wear resistance.
  • Tempering fine-tunes hardness and toughness after quenching by heating at 150-370°C.

Conclusion

440C stainless steel’s unique combination of high hardness, moderate corrosion resistance, and excellent wear resistance makes it suitable for demanding applications such as cutting tools, bearings, and molds. Its properties can be tailored through precise heat treatment processes, ensuring it meets specific performance requirements.

Price List and Market Trends in India

Pricing Overview of 440C Stainless Steel Sheets in India

The price of 440C stainless steel sheets in India depends on factors like thickness, finish, form, and specific uses. Below are indicative price ranges based on recent market data:

  • Standard 440C Stainless Steel Plate: ₹132,000 to ₹148,000 per ton (around $1,600 to $1,800 per ton).
  • Food-Grade 440C Stainless Steel Plate: ₹150 to ₹290 per kg (around $1.8 to $3.5 per kg).
  • 440C 2B Hot Rolled Stainless Steel Sheet: ₹107,000 to ₹157,000 per ton (around $1,299 to $1,899 per ton).
  • Thin Inox 440C Stainless Steel Sheets (0.1mm – 1mm): ₹66,000 to ₹99,000 per ton (around $800 to $1,200 per ton).
  • High Hardness 440C Stainless Steel Plate: ₹103,000 to ₹211,000 per ton (around $1,250 to $2,550 per ton).
  • Custom Rolling Design Plates: ₹152,000 to ₹265,000 per ton (around $1,850 to $3,220 per ton).

These prices are subject to change based on raw material costs, market demand, and supplier-specific factors.

Factors Influencing the Price of 440C Stainless Steel in India

Raw Material Costs

Fluctuations in the cost of high-grade iron and chromium, combined with global commodity market trends and import duties, significantly influence pricing.

Thickness and Dimensions

The thickness and size of the sheets affect pricing. Thicker sheets or larger dimensions generally cost more, while thinner sheets require specialized manufacturing, which may increase their price.

Surface Finish and Customization

Finishes like polished, brushed, or 2B impact pricing, with custom finishes or designs often adding to the cost. These are typically tailored to specific industrial or aesthetic needs.

Heat Treatment and Hardness

Sheets subjected to processes like hardening and tempering for enhanced strength and durability are priced higher, as they are suited for demanding applications such as aerospace or automotive components.

Market Demand

Increased demand from industries like medical, automotive, and aerospace raises prices. Conversely, reduced demand or excess supply can lower costs.

Supply Chain and Logistics

Transportation costs, import/export duties, and the availability of local suppliers also play a crucial role in determining prices. Efficient supply chains can help stabilize costs.

Market Trends in India

Growing Demand Across Industries

Demand for 440C stainless steel sheets is increasing steadily because of their exceptional hardness and wear resistance. Key industries driving this growth include:

  • Medical Sector: Used in surgical instruments and medical devices for their ability to maintain sharpness and resist corrosion after sterilization.
  • Automotive Industry: Ideal for precision tools and components like bearings due to their strength and wear resistance.
  • Aerospace Industry: Preferred for turbine blades and structural parts, as they can withstand high stress and temperature variations.

Competitive Supplier Landscape

The Indian market is highly competitive, with suppliers providing a variety of 440C stainless steel sheets customized for different industries. Many suppliers maintain extensive inventories to meet urgent requirements, helping ensure price stability despite global fluctuations.

Emphasis on Quality Standards

Buyers increasingly prefer materials that meet international quality standards such as ASTM A276 and ISO 9001:2015. While certified materials may be priced higher, they ensure reliability and performance in critical applications.

Influence of Global Trends

India’s pricing is influenced by global supply chains, particularly from major producers like China and Europe. Trade policies, raw material shortages, and geopolitical factors can create price volatility.

Price Optimization Strategies for Buyers

To manage costs, buyers can:

  • Bulk purchase for discounts.
  • Compare quotes to ensure competitive pricing.
  • Choose domestic suppliers to reduce logistics costs.
  • Limit custom finishes to essential applications.

By understanding these dynamics and adopting cost-effective strategies, buyers can make informed decisions while sourcing 440C stainless steel sheets in India.

Leading Suppliers and Manufacturers in India

Leading Suppliers of 440C Stainless Steel Sheets in India

Triton Alloys

Triton Alloys offers a variety of 440C stainless steel sheets and plates in different thicknesses and widths. Along with their extensive product range, they provide additional services like cutting, shearing, and custom dimensions to meet specific customer requirements. Their products adhere to ASME/ASTM standards, including ASTM A480/ASME SA480, and are available in finishes such as 2B, cold-rolled, and hot-rolled.

ALL METAL INDIA

ALL METAL INDIA offers custom cut-to-size 440C stainless steel sheets and specialized finishes for different industries. They emphasize high-quality production and rigorous quality checks to ensure product reliability. Their extensive inventory and competitive pricing make them a key player in the market.

Otai Steel

Another key supplier, Otai Steel, is renowned in India for its high-quality 440C stainless steel sheets and exceptional customer service. They offer products in a range of thicknesses, widths, and finishes that meet international standards. Widely used in aerospace, automotive, and medical industries, their products are valued for their high hardness and wear resistance. Otai Steel also provides technical consultations and robust after-sales service to ensure customer satisfaction.

SS440C.IN

SS440C.IN, an ISO 9001:2015 certified and CRISIL-rated manufacturer, excels in supplying 440C stainless steel sheets. They maintain high-quality management standards, as evidenced by their ISO certification. Offering a comprehensive range of products, including sheets, rolled round bars, pipes, forged bars, bright bars, and flat bars, SS440C.IN is equipped with ultra-modern production facilities and implements stringent quality checks to ensure product consistency and reliability.

Metline Industries

Metline Industries, a major supplier and manufacturer in India, offers cut-to-size 440C stainless steel plates ranging from 6mm to 50mm. They adhere to ASTM A240 specifications, ensuring high standards of quality and consistency. Known for their customer-centric approach, Metline Industries provides tailored solutions, including shearing, cutting, and blanking services, to meet diverse industrial needs.

Doshi Impex

Doshi Impex is a notable supplier recognized for their commitment to quality and customer satisfaction. They provide a variety of 440C stainless steel sheets in different thicknesses and finishes. Focusing on maintaining high-quality standards, Doshi Impex offers custom cutting and finishing services to meet the specific needs of their clients.

These leading suppliers in India offer a comprehensive range of 440C stainless steel sheets, catering to various industrial applications with a focus on quality, customization, and customer satisfaction.

Dimensions and Finishes Available

Thickness

440C stainless steel sheets come in various thicknesses to meet diverse industrial needs. The thickness ranges from as thin as 0.2mm to as thick as 100mm. This variety allows for flexibility in applications, from delicate surgical instruments to robust industrial machinery components.

Dimensions

440C stainless steel sheets are produced in multiple widths and lengths to suit different fabrication and manufacturing needs. Available widths include:

  • 1000mm
  • 1219mm (standard width)
  • 1500mm
  • 1800mm
  • 2000mm
  • 2500mm
  • 3000mm
  • 3500mm

The lengths available are:

  • 2000mm
  • 2440mm
  • 3000mm
  • 5800mm
  • 6000mm

These dimensions ensure that 440C stainless steel sheets can be used for both small-scale and large-scale projects.

Finishes

440C stainless steel sheets are available in various finishes to meet different aesthetic and functional needs. Common finishes include smooth, reflective, and matte surfaces, while special finishes offer highly polished or patterned options.

Common Finishes

  • SATIN (with plastic coating): Offers a smooth, brushed appearance, often used for decorative purposes.
  • 2B (bright, annealed and pickled): Provides a reflective, smooth finish, suitable for general applications.
  • Cold Rolled Sheet (CR): Known for its fine surface finish and high precision.
  • BA NO(8) (bright annealed): Features a highly reflective surface, similar to a mirror finish.
  • Hot Rolled Plate (HR): Typically used for thicker sheets, offering a rougher surface compared to cold-rolled sheets.
  • 2D (dull, annealed and pickled): Presents a matte finish, often used where surface reflectivity is not a priority.

Special Finishes

  • No. 1 (hot rolled, annealed, and pickled): Suitable for heavy-duty applications, providing a rough, matte surface.
  • 8K (mirror finish): Offers a highly polished, reflective surface, ideal for decorative applications.
  • Embossed Sheet/Plate: Features patterns pressed into the surface, enhancing both the aesthetic and functional properties of the material.

These finishes enhance the versatility of 440C stainless steel sheets, making them suitable for a wide range of applications, from industrial uses to decorative purposes.

Applications of 440C Stainless Steel Sheets

Industrial and Manufacturing

Bearings and Turbine Components

440C stainless steel sheets are highly valued in the industrial sector for their exceptional hardness and strength, making them ideal for producing durable bearings and turbine components. The high carbon content ensures these parts maintain their integrity and performance under high-stress conditions, providing long-lasting reliability.

Molds and Tools

Additionally, the high strength and hardness of 440C stainless steel make it suitable for manufacturing molds and tools. These applications benefit from the material’s ability to withstand repeated use without significant wear, ensuring long service life and consistent performance.

Medical and Surgical

Medical Instruments

In the medical field, 440C stainless steel is commonly used for surgical tools such as scalpels and forceps. Its high hardness allows for sharp, precise edges, while its corrosion resistance ensures that instruments remain rust-free even after repeated sterilizations. This makes 440C stainless steel an excellent choice for a wide range of surgical instruments.

Aerospace

Aircraft Structural Parts

The aerospace industry utilizes 440C stainless steel for certain structural parts of aircraft. This material is both lightweight and strong, with excellent corrosion resistance. Components such as turbine blades and other structural elements benefit from the durability and reliability provided by 440C stainless steel, performing well under extreme conditions.

Oil and Gas

Oil Refining and Natural Gas Equipment

440C stainless steel’s resistance to corrosion and high strength make it suitable for various applications in the oil refining and natural gas industries. Equipment and components made from this material can withstand harsh environments, including exposure to corrosive substances and extreme temperatures, ensuring longevity and reliability in demanding operational conditions.

General Engineering

Chisels and Cutting Tools

The hardness and durability of 440C stainless steel sheets make them ideal for producing chisels and other cutting tools. These tools benefit from the material’s ability to maintain sharp edges and resist wear, providing consistent performance over extended periods of use.

Automotive

Precision Components

In the automotive industry, 440C stainless steel is used to manufacture precision components such as ball bearings and valves. These parts require high wear resistance and strength, and the properties of 440C stainless steel ensure that they can withstand the rigorous demands of automotive applications, contributing to the overall reliability and efficiency of vehicles.

Conclusion

Final Thoughts on 440C Stainless Steel Sheets

440C stainless steel sheets are a versatile and high-performing material used in various industries that require exceptional hardness and wear resistance. Their ability to maintain structural integrity under high stress and challenging environmental conditions makes them indispensable for applications ranging from aerospace and medical instruments to industrial and automotive components.

Key Takeaways for Buyers and Engineers

  • Material Versatility: With a wide range of thicknesses, finishes, and dimensions, 440C stainless steel sheets are adaptable for both functional and aesthetic applications.
  • Performance Reliability: Their high hardness and wear resistance can be enhanced through heat treatment, ensuring long-lasting performance in demanding applications.
  • Industry Applications: Their properties meet the stringent requirements of advanced industries, making them ideal for precision tools and structural aerospace components.
  • Cost Considerations: Understanding market trends, supplier options, and price-influencing factors can help optimize procurement strategies.

Importance of Quality and Standards

Adhering to international standards is crucial for ensuring the reliability, safety, and performance of 440C stainless steel sheets, particularly in critical applications. The significance of complying with benchmarks such as ASTM A276 and ISO certifications cannot be overstated, especially for industries like aerospace, medical, and automotive.

Frequently Asked Questions

Below are answers to some frequently asked questions:

What is the current price list for 440C stainless steel sheets in India?

The current price list for 440C stainless steel sheets in India varies based on thickness, form, and supplier. Generally, prices range from US $600 to $3220 per ton, depending on specific requirements. For instance, 440C stainless steel plates are priced between US $1600-1800 per ton, while thinner sheets (0.1mm to 1mm) range from US $800-1200 per ton. Stainless steel plates with custom designs can cost as much as US $1850-3220 per ton. Additionally, prices per kilogram range from US $1.8 to $16, depending on the product specifications and suppliers, such as Jignesh Steel and Metline Industries.

Who are the top suppliers of 440C stainless steel sheets in India?

The top suppliers of 440C stainless steel sheets in India include Triton Alloys, ALL METAL INDIA, and Otai Steel. These companies are known for their high-quality products, extensive stock, and competitive pricing. Additionally, Jignesh Steel, Metline Industries, and Lint Steels are also prominent suppliers, offering a variety of thicknesses and finishes to meet the demands of various industries such as surgical instruments, ball bearings, and valves. These suppliers ensure that their products adhere to industry standards and specifications, providing reliable and durable 440C stainless steel sheets to their customers.

What are the chemical composition and mechanical properties of 440C stainless steel?

440C stainless steel, known for its high carbon content, has a chemical composition of 0.95-1.20% carbon, 16.0-18.0% chromium, ≤1.00% manganese, ≤1.00% silicon, ≤0.75% molybdenum, ≤0.04% phosphorus, ≤0.03% sulfur, and the balance iron. Its mechanical properties vary with heat treatment. In the annealed condition, it offers a tensile strength of ~760 MPa, 97 HRB hardness, and 14% elongation. When tempered, it achieves up to 1970 MPa tensile strength, 57-60 HRC hardness, and exceptional wear resistance, making it ideal for applications requiring durability and strength, such as bearings, knives, and aerospace components.

What dimensions and finishes are available for 440C stainless steel sheets?

440C stainless steel sheets are available in a range of dimensions, including thicknesses from 0.2 mm to 100 mm, widths from 1000 mm to 3500 mm, and lengths from 2000 mm to 6000 mm. They come in various finishes such as satin, 2B, cold-rolled (CR), bright annealed (BA NO(8)), hot-rolled (HR), 2D, mirror, dull, and electropolished, which enhances corrosion resistance. These specifications cater to diverse industrial requirements, ensuring versatility and suitability for multiple applications.

What are the common applications of 440C stainless steel sheets?

440C stainless steel sheets are commonly used in various critical applications due to their high carbon content, superior hardness, and excellent wear resistance. These applications include industrial and mechanical components like ball bearings, bushings, valve parts, and pump nozzles. In the medical field, they are used for surgical, dental, and other medical instruments. The food and cutlery industry utilizes 440C for knives and blades that require excellent edge retention. Additionally, the aerospace sector employs this material for aircraft structural parts and turbine components, while general manufacturing uses it for molds and high-wear parts.

How do market trends influence the price of 440C stainless steel sheets in India?

Market trends significantly influence the price of 440C stainless steel sheets in India through various factors such as industrial growth, regional supply and demand dynamics, and supplier investments. Rapid industrialization and government initiatives like ‘Make in India’ drive demand, potentially raising prices due to increased production costs and raw material prices. Regional advantages, particularly in Western India, can lead to competitive pricing due to better access to raw materials. Investments in advanced manufacturing technologies and quality control by suppliers also affect pricing, as do economic policies and regulatory changes that impact raw material and production costs.

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