Heat Treatment & Processes:
Heat Treatment
P20+Ni / DIN / AISI P20+Ni is already pre-toughened, thus no heat treatment is necessary if no particular needs exist.
With competitive price and timely delivery, Jiebao sincerely hope to be your supplier and partner.
Hardening:
Harden from 840-870°C, followed by oil, and finally quench in oil/hot bath/air 180-220 °C. The hardness after quenching is approximately 52 HRC.
Tempering:
After hardening, slowly heat the part to the tempering temperature; the minimum duration in the furnace is one hour for every 20 mm of part thickness; two tempering is advised.
Forging:
-898 °C.
Stress Relieving:
Approx. 650°C.
Normalizing:
Approx 900°C
Annealing:
The maximum Brinell hardness will be 235 after being heated to 710 to 740 °C for 2 to 5 hours, and then gently cooled to 600 °C additional cooling in air.
Welding:
For the welding process , P20+Ni tool steel conventional methods are used.
Quenching:
840-870 °C.
DIN 1. is specially used for Plastic injection die moulds. The characteristics of a material are right sharpening, photo-etching properties with high purity and good homogeneity. DIN is upgraded version of plastic mold steel 0f , which normally supply in Pre hardened condition. Hardness in as supplied condition 280-320 HB with having uniform hardness. The additional nickel content of 1 % increases through hardening. It has good machinability, suitable for Texturing, fine polishability, adequate corrosion resistance, vacuum-degassed steel.
DIN is a premium mold steel that offers excellent polishability, wear resistance, and toughness, making it ideal for a wide range of tooling applications. DIN is a specially designed mold steel with improved toughness and excellent machinability compared to standard P20 grades.
Are you interested in learning more about mold steel? Contact us today to secure an expert consultation!
DIN 1. is a widely used cold work steel, especially in the plastic mold industry. It is equivalent to P20+Ni and AISI P20+Ni tool steel. DIN steels have superior polishability compared to 1. (AISI P20+S) and better machinability. To enhance the hardness and wearability of the mould surface material , it can be treated with nitrogenation and flame hardening. DIN steel is melted in an electrical furnace and refined using a VOD or DH equipment.
Chemical Composition:
DIN : Carbon (C): 0.35-0.45%, Manganese (Mn): 1.30-1.60%, Silicon (Si): 0.20-0.40%, Phosphorus (P): ≤ 0.030%, Sulfur (S): ≤ 0.030%, Chromium (Cr): 1.80-2.10%, Nickel (Ni): 0.90-1.20%, Molybdenum (Mo): 0.15-0.25%
P20+Ni: Carbon (C): 0.28-0.40%, Manganese (Mn): 0.60-1.00%, Silicon (Si): 0.20-0.80%, Phosphorus (P): ≤ 0.030%, Sulfur (S): ≤ 0.030%, Chromium (Cr): 1.40-2.00%, Nickel (Ni): 0.80-1.20%
Mechanical Properties:
DIN :
Tensile Strength: 980- MPa
Yield Strength: ≥ 800 MPa
Elongation: ≥ 15%
Hardness: 280-325 HB
P20+Ni:
Tensile Strength: - MPa
Yield Strength: ≥ 900 MPa
Elongation: ≥ 12%
Hardness: 280-325 HB
Physical Properties:
Density: DIN and P20+Ni have a density of approximately 7.85 g/cm³.
Thermal Conductivity: The thermal conductivity of these steels is around 30-35 W/(m·K).
Specific Heat Capacity: The specific heat capacity is about 460-480 J/(kg·K).
Thermal Expansion: The linear coefficient of thermal expansion is approximately 11-12 x 10^-6 /K.
Application:
DIN is applicable for large & small plastic mould dies for Automotive Industries, Dies for Domestic goods , High finishing plastic Die, Boaster Plates of Presses, Die Holders & Shoe blocks for drop Hammers, Press Cassettes , Upsetter Blocker, forging dies, Different dies & mold for plastic products etc.
At Virat Special Steels, we provide DIN in round bar and flat bar blocks in different sizes and conditions to meet your specific requirements. Our team of experts is ready to assist you with any queries you have about DIN steel.
Learn more: https://www.viratsteels.com/din-.html
Contact us today to buy the best quality DIN steel for your tooling needs!
Want more information on 1. steel? Feel free to contact us.
Comments
All Comments (0)