Product description

Milano Special Steel: Your Premier Partner for P20 Steel and High-Quality Tool Steels in India

Since our establishment in 1972, Milano Special Steel has proudly served as a cornerstone of the Indian steel industry.

With over 50 years of unparalleled experience, we have cultivated an unwavering reputation as leading importers and suppliers of a comprehensive range of premium steel grades. Our commitment to excellent quality, competitive prices, and customer-centric service has made us the preferred choice for businesses across diverse sectors.

This extensively optimized text will delve deep into our core expertise: P20 Steel grade DIN 1.2311, a highly sought-after plastic mould steel. We’ll explore its essential properties, myriad applications, key differences from other steels, equivalent grades, alternative grades, and intricate composition. Furthermore, we’ll highlight our unique capabilities in supplying wholesale and retail, offering cut pieces sizes as per customer requirements, and our extensive supply network across India.

P20 Steel (DIN 1.2311): The Backbone of Plastic Moulding

Unveiling the Properties of P20 Steel

P20 Steel (DIN 1.2311) is a pre-hardened, medium carbon, chromium-molybdenum alloy steel. Its popularity in the plastic moulding industry stems from a unique blend of properties that ensure optimal performance and longevity for moulds.

• Pre-Hardened State: One of the most significant advantages of P20 steel is that it’s typically supplied in a pre-hardened condition, usually ranging from 28-32 HRC or 30-34 HRC. This eliminates the need for further heat treatment by the mould maker, significantly reducing production time, cost, and the risk of distortion or cracking during hardening. For specific high-demand applications, we also specialize in providing P20 High Hard Steel with hardness ranging from 34HRC to 38HRC, ensuring superior wear resistance and extended tool life.
• Good Machinability: Despite its pre-hardened state, P20 steel offers good machinability, allowing for intricate mould designs and fine surface finishes. This is crucial for achieving the desired product aesthetics and dimensional accuracy in plastic components.
• Excellent Polishability: The clean steel microstructure of P20 steel contributes to its superb polishability, enabling mould surfaces to achieve a high mirror finish. This is vital for producing plastic parts with superior surface quality, especially in optical or aesthetic applications.
• Uniform Hardness: P20 steel exhibits uniform hardness throughout its cross-section, even in larger mould blocks. This consistency ensures predictable performance and minimizes differential wear, contributing to longer mould life.
• High Toughness and Ductility: This steel grade possesses good toughness and ductility, which makes it resistant to chipping and cracking under the stresses of injection moulding. It can withstand the repeated thermal cycles and mechanical pressures inherent in the process.
• Moderate Wear Resistance: While not as wear-resistant as some high-speed steels, P20 offers moderate wear resistance suitable for a vast majority of plastic moulding applications, particularly for non-abrasive plastics. For abrasive plastics or very high production volumes, other grades might be considered, but P20 often provides the best balance of cost and performance.
• Good Weldability: P20 steel has good weldability, which is beneficial for mould modifications, repairs, or adding inserts. Proper preheating and post-weld heat treatment are recommended to maintain desired properties.
• Thermal Stability: It maintains its mechanical properties and dimensional stability even under the elevated temperatures experienced during the plastic injection moulding process. This prevents distortion of the mould and ensures consistent part quality.

Applications of P20 Steel

The versatility and robust properties of P20 Steel make it indispensable in a wide array of industries, particularly in the manufacture of plastic components. Its main applications include:

• Plastic Moulds Making Industry: This is the primary domain for P20 steel. It is extensively used for the creation of:
  • Large and Medium-Sized Plastic Injection Molds: For automotive parts, consumer electronics housings, household appliances, and packaging.
  • Compression Moulds: Used for thermosetting plastics.
  • Rubber Moulds: For various rubber products.
  • Die Holders: Components that support and align the actual moulding cavities.
  • Back Plates, Support Plates, and Frames: Structural components of mould assemblies.
  • Extrusion Dies: For plastic profiles and pipes.
• Automotive Industry: P20 steel is crucial for manufacturing moulds for various automotive components, including dashboard parts, interior trims, bumper fascias, lighting components, and engine covers made from plastic.
• Consumer Goods Industry: From appliance housings to electronic casings, toys, and kitchenware, P20 moulds are fundamental to the production of countless consumer products.
• Packaging Industry: Moulds for plastic bottles, caps, containers, and food packaging are frequently made from P20 steel due to its balance of cost, machinability, and polishability.
• Industrial Machines and Parts Making: While primarily a mould steel, its excellent machinability and pre-hardened state make it suitable for some industrial machine components where moderate hardness and good dimensional stability are required, often as support structures or non-critical wear parts.
• Die Casting Industry (Limited): Though specifically a plastic mould steel, sometimes P20 is used for less demanding aluminum die casting and pressure die casting dies, especially for components that do not require very high thermal fatigue resistance or extreme hot hardness. However, for demanding die casting applications, hot work tool steels like H13 are generally preferred.
• Forging Industry (Limited): Similarly, in the forging industry, P20 might be used for some less demanding dies or bolster plates, but typically, dedicated hot work tool steels are employed for high-temperature forging applications.

Understanding the Difference: P20 Steel vs. Other Tool Steels

It’s crucial to differentiate P20 steel from other tool steel grades, as each is designed for specific applications.

• P20 Steel vs. Hot Work Tool Steels (e.g., H13, H11): Hot work tool steels are engineered to withstand high temperatures and thermal fatigue, making them ideal for aluminum die casting, pressure die casting, and hot forging dies. P20 steel, on the other hand, is optimized for plastic moulding where temperatures are significantly lower. While P20 can handle some moderate heat, it lacks the specialized alloying elements (like higher tungsten or vanadium) to maintain hardness and strength at elevated temperatures for extended periods, unlike H13.
• P20 Steel vs. Cold Work Tool Steels (e.g., D2, O1): Cold work tool steels are designed for applications involving severe abrasion and high wear resistance at room temperature, such as sheet metal cutting, punching, and blanking tools, or cutting tools making. They typically have very high carbon and alloy content, making them very hard but also more brittle than P20. P20’s primary advantage is its balance of machinability, polishability, and toughness for plastic moulds, where wear is generally less severe than in cold work applications.
• P20 Steel vs. High Speed Steels (e.g., M2, M35): High-speed steels are used for cutting tools (drills, reamers, milling cutters) due to their exceptional hardness, hot hardness, and wear resistance at elevated temperatures generated during cutting operations. They are significantly harder and more expensive than P20 and are not suitable for mould applications due to their brittleness and difficulty in machining large mould blocks.

Equivalent and Alternative Grades

Understanding equivalent grades and alternative grades is vital for sourcing and specifying P20 steel globally.

• Equivalent Grades:
  • USA (AISI/SAE): P20 (most direct equivalent, though variations in specific composition can exist).
  • Germany (DIN/W.Nr.): 1.2311 (our primary offering and the focus here). Another common equivalent is 1.2312, which contains added sulfur for improved machinability, sometimes at the expense of polishability or toughness.
  • France (AFNOR): 40 CrMnMo 7
  • **Japan (JIS): PX5
  • China (GB): 3Cr2Mo
  • United Kingdom (BS): 40ChMnMo7
• Alternative Grades: While P20 is highly versatile, alternative grades might be considered for specific performance requirements or cost considerations:
  • 1.2738 (P20+Ni): This grade is essentially P20 with added nickel (typically 1%). The nickel content enhances through-hardening capabilities, especially in larger mould sections, providing more uniform hardness distribution. It also slightly improves toughness.
  • H13 (DIN 1.2344): As a hot work tool steel, H13 is an alternative for plastic moulds where higher heat resistance or resistance to thermal fatigue is critical, such as for moulds producing parts with very thick sections, requiring longer cooling times, or operating at elevated temperatures. It requires heat treatment after machining.
  • 420 Stainless Steel / DIN 1.2083 steel: For plastic moulds requiring corrosion resistance, especially for moulding corrosive plastics (e.g., PVC) or for moulds stored in humid environments, 420 stainless steel is a viable alternative. It is also pre-hardened and offers good polishability.
  • Pre-hardened Beryllium Copper Alloys: For applications demanding extremely rapid heat dissipation or superior thermal conductivity in specific mould areas, beryllium copper inserts are sometimes used.

Chemical Composition of P20 Steel (DIN 1.2311)

The specific properties of P20 steel are a direct result of its carefully balanced chemical composition. While exact percentages can vary slightly between manufacturers within standard specifications, a typical composition for DIN 1.2311 is as follows:

• Carbon (C): 0.35 – 0.45% (Provides hardness and strength after heat treatment or in its pre-hardened state).
• Silicon (Si): 0.20 – 0.40% (Deoxidizer, contributes to strength).
• Manganese (Mn): 1.30 – 1.60% (Enhances hardenability and strength).
• Chromium (Cr): 1.80 – 2.10% (Increases hardenability, wear resistance, and corrosion resistance).
• Molybdenum (Mo): 0.15 – 0.25% (Improves strength, toughness, and hot hardness).
• Sulfur (S): Max 0.030% (Typically kept low, except in DIN 1.2312, where it’s intentionally added for machinability).
• Phosphorus (P): Max 0.030% (Typically kept low to prevent brittleness).

Milano Special Steel: Your Trusted Steel Partner

At Milano Special Steel, we understand the critical role that high-quality steel plays in your manufacturing processes. Our commitment extends beyond just supplying steel; we aim to be a comprehensive solution provider for all your steel requirements.

Extensive Inventory and Supply Capabilities

We maintain a vast and diverse inventory of P20 Steel grade DIN 1.2311 in both plates and round shapes, ensuring immediate availability for your projects. Our extensive stock is meticulously managed to meet the demands of both wholesale and retail clients. Whether you require large bulk orders for continuous production or smaller quantities for specific projects, we are equipped to fulfill your needs promptly and efficiently.

Customization and Cut Pieces

A unique aspect of our service is our ability to provide cut pieces in sizes as per customer requirements. We understand that not all projects require full plates or standard-length rounds. Our state-of-the-art cutting facilities allow us to precisely cut steel to your exact specifications, minimizing waste and optimizing your material usage. This service is invaluable for intricate mould designs, prototyping, or specialized industrial parts, providing significant cost savings and convenience.

Nationwide Supply Network

Milano Special Steel boasts a robust and efficient supply chain that enables us to deliver our premium steel products all over India. Our strategic location and strong logistical partnerships ensure timely and reliable delivery to your doorstep, regardless of your location. We serve major industrial hubs and emerging markets alike, ensuring that quality steel is always within your reach.

Serving Diverse Industries and Major Clients

Our deep understanding of various industry requirements has allowed us to forge strong, long-lasting relationships with a diverse clientele. Our major clients span critical sectors, including:

• Aluminum Die Casting Industry: Supplying specialized steels for demanding die-casting applications where precision and durability are paramount.
• Pressure Die Casting Industry: Providing robust steel grades that can withstand the high pressures and temperatures involved in pressure die casting.
• Sheet Metal Cutting Industry: Offering steels with the necessary hardness and wear resistance for cutting tools and dies used in sheet metal fabrication.
• Cutting Tools Making Industry: Supplying the foundational materials for manufacturing high-performance cutting tools that deliver precision and longevity.
• Plastic Moulds Making Industry: Our core strength is providing the ideal P20 steel and other mould steels for creating intricate and durable plastic moulds.
• Automotive Industry: A vital sector for us, supplying steels for tooling used in manufacturing a vast array of automotive components.
• Forging Industry: Providing robust steels for dies and tools used in the demanding process of metal forging.
• Industrial Machines and Parts Making: Supplying various steel grades for components that require specific mechanical properties, wear resistance, or structural integrity in industrial machinery.
• Industrial and Defense Industry Parts Making: Catering to the stringent requirements of these sectors with high-performance and reliable steel materials for critical components.

Our Strategic Locations

To better serve our extensive client base, Milano Special Steel has strategically established its presence and supply capabilities across key industrial regions. Our primary operational hubs and service areas include:

• Gurugram, Haryana: A major industrial and automotive hub, allowing us to cater directly to numerous manufacturing units.
• Kundli, Sonipat, Haryana: Proximity to Delhi and a burgeoning industrial corridor for diverse manufacturing needs.
• Manesar, Haryana: A significant automotive and industrial cluster where demand for high-quality tool steels is consistent.
• Bawal, Haryana: Another rapidly developing industrial zone with a strong manufacturing presence.
• Bhiwadi, Rajasthan (Proximity to Haryana): Serving the industrial belt in and around Bhiwadi.
• Dharuhera, Haryana: A growing industrial area with diverse manufacturing units.
• Faridabad, Haryana: A long-established industrial powerhouse with a high demand for various steel grades.
• Ghaziabad, Uttar Pradesh: A major industrial city neighboring Delhi, with a significant manufacturing base.
• Noida, Uttar Pradesh: A prominent industrial and IT hub with growing manufacturing requirements.
• Maharashtra: A key industrial state with major manufacturing centers like Pune and Mumbai, where we have strong supply lines.
• Bihar: Expanding our reach to cater to the industrial development in the eastern part of India.
• West Bengal: Serving the manufacturing and industrial sectors in this strategically important state.
• Punjab: A significant agricultural and industrial state, requiring various steel grades for machinery and tools.
• Himachal Pradesh: Catering to the industrial units in the northern hilly regions.
• Gujarat: A powerhouse of manufacturing and trade, with high demand for quality steel.
• Bangalore, Karnataka: Serving as the IT and manufacturing hub in South India.
• Pune, Maharashtra: A major automotive and industrial center, a key market for our products.
• Surat, Gujarat: Known for its textile and diamond industries, it is also an emerging manufacturing hub.

Our extensive network ensures that Milano Special Steel is consistently accessible to manufacturers across these regions, providing prompt delivery and unparalleled service.

Why Choose Milano Special Steel?

Choosing the right steel supplier is as crucial as selecting the right steel grade. Here’s why Milano Special Steel stands out as your ideal partner:

• Five Decades of Expertise (Established 1972): With over 50 years in the industry, our experience is unmatched. We possess deep technical knowledge of steel grades, applications, and market dynamics, enabling us to provide expert advice and solutions.
• Uncompromising Quality: We source our steel from reputable global manufacturers, ensuring that every batch meets stringent international quality standards. Our focus on excellent quality guarantees reliability and performance for your critical applications.
• Competitive Pricing: As major importers and efficient suppliers, we leverage our strong procurement network and streamlined operations to offer the best prices in the market without compromising on quality.
• Comprehensive Inventory: Our vast stock of P20 Steel in plates and round shapes, along with other premium grades, means you rarely face delays due to material unavailability.
• Customization Capabilities: Our ability to supply cut pieces in sizes as per customer requirements provides flexibility and cost efficiency, distinguishing us from many competitors.
• Nationwide Reach: Our robust logistics ensure that we can supply all over India, bringing quality steel to your doorstep, wherever your operations are located.
• Customer-Centric Approach: At Milano Special Steel, the customer is at the heart of everything we do. We strive to understand your specific needs and provide tailored solutions, ensuring your complete satisfaction.
• Technical Support: Our experienced team can provide valuable insights and technical support regarding steel properties, applications, and suitability for your projects.

Contact Milano Special Steel Today

Ready to elevate your manufacturing processes with premium P20 Steel and other high-quality tool steels? Milano Special Steel is your trusted partner for reliability, quality, and competitive pricing.

Visit our websites to learn more about our comprehensive range of products and services:

• https://www.milanospecialsteel.com/
• https://www.p20highhardsteel.com
• https://www.p20steel.com
• https://www.p20steelsupplier.com

For inquiries, quotations, or expert advice, please do not hesitate to reach out to us:

Email ID: [email protected]

We look forward to partnering with you and providing the excellent quality steel solutions that your business deserves. Choose Milano Special Steel – where experience meets excellence.