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| C | Si | Mn | P | S | Cr | Mo |
|---|---|---|---|---|---|---|
| 0.35 - 0.45 | 0.20 - 0.40 | 1.30 - 1.60 | 0.03 | 0.03 | 1.80 - 2.10 | 0.15 - 0.25 |
DIN 2311 is an alloy tool steel with good machining ability even when hardened and tempered (Brinell 300). This steel has a polished surface and is one of the most regularly used requirements for machine cut plastic molds and casting dies. DIN 2311 is frequently hardened and tempered, ready for machining. It provides great wear resistance in this form, however if maximal surface hardness is required for compression molding plastic dies or similar equipment, the steel can be case hardened. A higher Sulfur variant, DIN 2311, is offered for improved machinability.
Virat Special Steels is the largest stockiest and supplier of DIN 2311 Steel in flat, square and round bar. We provide steel in all sizes as your requirements. DIN 2311 die steel is available in flat, square and round shape. Consult our team who will assist you for DIN 2311 steel query.
P20 / DIN 2311 /AISI P20 is the Pre Hardened Plastic mould steel hardness distributed evenly in large cross sections that have excellent weldability with least hardness elevation, good mirror polishability and less streak texture making finishing easier. Size Section availability upto 255mm thickness. Supply hardness is 240-280 BHN.
| Tensile Strength | 965-1030 MPa |
| Yield Strength | 827-862 MPa |
| Hardness | 30 HRC |
| Elongation | 20% |
| Compressive Strength | 862 MPa |
| Elastic Modulus | 190-210 GPa |
| Coefficient of thermal expansionat °C | 20-100 | 20-150 | 20-200 | 20-250 | 20-300 | 20-350 | 20-400 | 20-450 | 20-500 |
| 10-6 m/(m*K) | 12.7 | 12.8 | 13.1 | 13.3 | 13.6 | 13.7 | 13.8 | 14.0 | 14.3 |
| Thermal Conductivity at °C | 23 | 150 | 300 | 350 | 400 | 500 |
| W/(m*K) | 32.0 | 32.8 | 31.4 | 30.2 | 29.6 | 27.5 |
During the carburizing process, P20 / DIN 2311 / AISI P20 tool steels are heated to 871-899°C (1600-1650°F) in the carburizing medium. After carburizing, these steels are heated to 816-871°C (1500-1600°F) to harden, then held for 15 minutes before being oil quenched.
Heat the steel consistently to 820-840°C until completely heated. Soak in oil to cool.
Heat gently, giving the steel enough time to heat all the way through. start forging at 1050 degrees. Never forge below 930°C, reheating as needed. After forging, allow it to progressively cool.
To reduce machining stresses when dies are substantially machined, stabilizing is advised right before finishing machining. 460° to 500° Celsius. Good soaking followed by air cooling is advised.
Heating uniformly to 900°C for P20 / DIN 2311 / AISI P20 steel.
Heating consistently to 770–790°C for P20 / DIN 2311 / AISI P20 annealing. Good soaking, gentle cooling in the boiler.
Heat evenly and soak for at least one hour for every 25mm of section at the tempering temperature. Allow it to cool in a cool air.
P20 / DIN 2311 / AISI P20 tool steels are welded using traditional techniques.
| Soft annealing °C | Cooling | Hardness HB |
|---|---|---|
| 710 – 740 | Furnace | max. 235 |
| Hardening °C | Quenching | Hardness after quenching HRC |
|---|---|---|
| 850 – 880 | Oil or saltbath, 180 – 220 °C | 52 |
| Tempering °C after Quenching | 100 | 200 | 300 | 400 | 500 | 600 | 700 |
| HRC | 52 | 50.5 | 48.5 | 46 | 42 | 36.5 | 28 |
Plastic mould steel equivalent to P20/ DIN 2311 / AISI P20 use for die holders, zinc die, casting dies, backers, bolsters, injection moulds, mould frames for plastic moulds, Shoe Blocks, pressure casting moulds, recipient sleeves Etc.
P20 Tool Steel is a low-carbon, chromium-molybdenum mold steel that offers excellent toughness, machinability and polishability, making it a popular choice across mold-making and die-casting industries. It is extensively used in plastic injection molding, blow molding, zinc die casting, automotive component tooling and consumer goods mold making where cosmetic finish and dimensional consistency are of utmost importance. P20 Tool Steel is used by manufacturers to make mold cavities, cores, mold bases, bolsters and die holders that can stand up to repeated thermal cycling in production. Virat Special Steels' P20 Tool Steel, with its consistent pre-hardened quality, superior machinability and cost-effective supply, is the ideal choice for industries to achieve precision, productivity and long-lasting mold performance.
Want the full technical specifications, chemical composition, and hardness data for P20 Steel in one place? Download our Products Brochure.
Have a specific requirement or need a quote for P20 Steel? Reach out to our team directly — call us at +91-98140 21775 or email info@viratsteels.com
Virat Special Steels is one of the largest P20 Tool Steel suppliers of high quality for customers in the key manufacturing & industrial hubs in India such as Ahmedabad, Rajkot, Pune, Nashik, Aurangabad, Kolhapur, Belagavi, Chennai, Coimbatore, Hosur, Bengaluru, Hyderabad, Faridabad, Manesar, Bhiwadi, Gurugram, Delhi NCR, Ludhiana, Chandigarh, Haryana, Punjab and Jamshedpur. With a large inventory, stringent quality standards and a strong logistics network, we promise timely delivery PAN India to serve the needs of mold makers, die casters, automotive component manufacturers, precision engineering companies and plastic processing industries. Virat Special Steels is a trusted partner for high performance P20 Tool Steel solutions across a wide range of industrial applications, due to our dedication to quality, reliable supply and customer satisfaction.
