Khaitan Steel Forgings
Khaitan Steel Forgings
Amraiwadi, Ahmedabad, Gujarat
GST No. 24AAMFK9555G1ZY
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Plastic Mould Steel Bars

Providing you the best range of p20 plastic mould steel round bar, plastic mould steel rectangular bar and plastic mould steel bar with effective & timely delivery.

P20 Plastic Mould Steel Round Bar

P20 Plastic Mould Steel Round Bar
  • P20 Plastic Mould Steel Round Bar
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Approx. Price: Rs 60 / KgGet Latest Price

Product Details:

Material GradeP20
Single Piece Length3-6 meter
Usage/ApplicationIndustrial
ShapeRound
Thickness/Diameter2-3 inch
MaterialPlastic Mould Steel

P20 Tool Steel:
  • Low-carbon mold steels or group P steels are of different types that include P2, P3, P4, P5, P6, P20, and P21 steels.
  • Chromium and nickel are the main alloying elements found in group P steels.
  • P20 tool steels are nitrided or carburized.
  • These steels are capable of being machined into complex and large dies and molds.
  • P20 steels are mostly used in the carburized condition.
  • The presence of chromium and nickel enhances the toughness and hardness of P20 steels.


Equivalent materials to P20 tool steels are:

  • DIN 1.2330
  • UNS T51620
  • ASTM A681

Principal Design Features:
  • This alloy is in the category generally labeled as Mold Steels.
  • Nickel and chromium are the alloying elements for hardness and toughness.
  • This alloy is most often used in the carburized condition.

Tempering:
  • P20 tool steels are tempered at 482-593°C (900 to 1100°F) for a Rockwell C hardness of 37 to 28.

Annealing:
  • Annealing takes place at 760-788°C (1400 to 1450°F) and then the steels are cooled slowly in the furnace at a temperature less than 4°C (40°F) per hour.

Cold Working:
  • P20 tool steels are capable of being readily cold worked by using conventional tooling methods with the alloy in the annealed condition.

Forging:
  • P20 tool steels are forged at 1093°C (2000°F) down to 899°C (1650°F).
  • Forging below 871°C (1600°F) is not recommended for these steels.

Welding:
  • Conventional methods are used for welding of P20 tool steels.

Heat Treatment:
  • P20 tool steels are heated to 871-899°C (1600-1650°F) in the carburizing medium during the carburizing process.
  • After being carburized, these steels are heated to 816-871°C (1500-1600°F) in order to be hardened and then held for 15 minutes and finally oil quenched.

Chemical composition:
PropertiesMetricImperial
Density 7.85 g/cc 0.284 lb/in3


The thermal properties of P20 tool steels are given in the following table:

Properties

Conditions
T (°C) Treatment
Thermal expansion 12.8 x 10-6/ºC 20-425 -


The following table shows the physical properties of P20 tool steels.

PropertiesMetricImperial
Density 7.85 g/cc 0.284 lb/in3


The mechanical properties of P20 tool steels are displayed in the following table.

PropertiesMetricImperial
Hardness, Brinell (typical) 300 33
Hardness, Rockwell C (typical) 30 30
Tensile strength, ultimate 965-1030 MPa 140000-150000 psi
Tensile strength, yield
827-862 MPa 120000-125000 psi

Elongation at break (in 50 mm (2")) 20.0% 20.0%
Compressive strength 862 MPa 125000 psi
Charpy impact (V-Notch) 27.1-33.9 J 20.0-25.0 ft-lb
Poisson's ratio 0.27-0.30 0.27-0.30
Elastic modulus 190-210 GPa 27557-30457 ksi
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Plastic Mould Steel Rectangular Bar

Plastic Mould Steel Rectangular Bar
  • Plastic Mould Steel Rectangular Bar
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Approx. Price: Rs 60 / KgGet Latest Price

Product Details:

Usage/ApplicationIndustrial
Single Piece Length3-6 meter
ShapeRectangular
TechniqueHot Rolled
MaterialPlastic Mould Steel
GradeP20 S

P20 S is a high tensile alloy tool steel grade supplied in the hardened and tempered condition. With its higher sulphur content it offer better machinability than P20 plastic mould tool steel grade.

 

Forging:

  • Heat the P20S component slowly, allow sufficient time for the steel to become heated through.
  • Begin to forge at 1050°C. Do not forge below 930°C reheating if necessary. After forging, cool very slowly.
  • Tool steel P20+S is ideally suited for the production of moulds where improved machinability is required.
  • Typical applications include bolsters and injection moulds, die holders and zinc die casting dies.
  • P20S is a versatile plastic mould tool steel with high tensile characteristics suitable for many other applications such as shafts and wear strips.

Stress Relieving:
  • When dies made from P20S are heavily machined, we recommend stabilising the steel just before finish machining in order to relieve machining strains.
  • Heat up to 460-500°C, soak well and cool in air.

Annealing:
  • Heat uniformly to 710-740°C. Soak well, cool slowly in the furnace.

Hardening:
  • Heat uniformly to 830-870°C until heated through.
  • Quench in oil.
  • Tempering When tempering P20S heat the steel uniformly, soaking at the tempering temperature for at least one hour per 25mm of section.

Carbursing / Case Hardening:
  • Tools produced from tool steel P20+S may be case hardened, which can achieve a surface hardness of between 55 to 59 Rockwell C.

Nitriding:
  • Tools machined from P20S pre-hardened can be nitrided to give a wear resistant surface case of approximately 60 Rockwell C hardness with a case depth of .35mm to 0.5mm.
  • Nitriding also increases the corrosion resistance of P20S.
  • After nitriding at 525°C in ammonia gas the surface hardness of the tool will be approximately 650HV.

Flame / Induction Hardening:
  • Induction or flame hardening of will achieve a hardness of 50 to 55HRc.
  • It is preferable to air cool, though smaller components may require forced cooling.
  • Temper immediately after hardening.

Heat Treatment:
  • P20 tool steels are heated to 871-899°C (1600-1650°F) in the carburizing medium during the carburizing process.
  • After being carburized, these steels are heated to 816-871°C (1500-1600°F) in order to be hardened and then held for 15 minutes and finally oil quenched.

Chemical composition:
ElementMinMax
Carbon 0.35 0.45%
Manganese 1.40 1.60%
Silicon 0.30 0.50%
Molybdenum, Mo 0.15 0.25%
Chromium,Cr 1.80 2.00%
W -- --
Vanadium, V -- --
Co -- --
Sulfur, S 0.05 0.10
Phosphorous, P
-.-- 0.030


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Plastic Mould Steel Bar

Plastic Mould Steel Bar
  • Plastic Mould Steel Bar
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Approx. Price: Rs 60 / KgGet Latest Price

Product Details:

Material GradeP20 NI
Single Piece Length3-6 meter
Surface FinishGalvanized
Usage/ApplicationIndustrial
ShapeRectangular
MaterialPlastic Mould Steel
ThicknessUpto 7 mm

Prehardened plastic mold steel, hardness in as-supplied condition 280-320 HB The high nickel content (1%) is specially adapted to ensure a perfect homogeneity of structure and hardness through thickness even for very thick blocks, good polishability, adequate corrosion resistance, good machinability.

Description:
  • P20 Ni: Good mechanical property & quenching
  • P20 Ni: Excellent Polished Performance
  • P20 Ni: High brightness

 

Heat Treatment Hardness:

  • 28-35 HCR (After tempering )

Characteristics:
  • 1.2738 plastic mould steel has good polishing and photo-etching properties, good machinability, high purity and good homogeneity, uniform hardness.

Smelting:
  • Components: High hardenability, polishability and integrated mechanical properties
    Technic: EAF+ LF + VD, produced high purity and performance steels.

Comparable steel:
  • P20+Ni(USA AISI)
  • 718(Swenden ASSAB)
  • 1.2738(Germany DIN)
  • 3Cr2NiMnMo(China GB)

 

Advantages:
  • 1. High mechanical property and quenching, enable the surface share equal hardness after deal with it
  • Good polishing and low roughness
  • Making the heat-treatment to harden condition before using it
  • Competitive price
  • Fast production lead-time
  • All the material are inspected with 3 times to meet the highly standards
  • Pure steel quality & stable quality to be guarantee

Chemical composition:
ElementMinMax
Carbon, C 0.35 0.45
Manganese, Mn 1.30 1.60
Silicon,Si 0.20 0.40
Nickel, Ni -.-- 01.0
Molybdenum, Mo 0.15 0.25
Chromium,Cr 1.80 2.10

Forging Technique:
Heating temperatureInitial forging temperatureFinal forging temperatureCooling
1140-1180 1050-1140 ≥850 cooling in pit

Heat treatment technique:
ItemAnnealingQuenchingTempering
Temperature [°C] 710-740 840-870 550-650
Cooling Furnace cooling Oil cooling or air cooling air cooling
Hardness ≤235HB ≤51HRC 28-35HRC
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Saket Khaitan (Partner)
Ajod Dairy Road, Opposite Gravity House, Near Keval Kanta Gujarat Bottling, Rakhial
Amraiwadi, Ahmedabad- 380023, Gujarat, India



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