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AISI P-6 Case Hardening Steel Round Bar Rods AISI P-6 Case Hardening Steel Round Bar Rods AISI P-6 Case Hardening Steel Round Bar Rods AISI P-6 Case Hardening Steel Round Bar Rods AISI P-6 Case Hardening Steel Round Bar Rods

AISI P-6 Case Hardening Steel Round Bar Rods

484.0 INR/Kilograms
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Product Details:

  • Processing Annealed or Hardened
  • Technique Hot Rolled, Forged
  • Diameter 16 mm to 300 mm (custom sizes available)
  • Standard AISI, ASTM, DIN, JIS (varies as per manufacturer)
  • Tolerance h11, h13, or as specified
  • Specific Use Tool, Die, and Mold components requiring case hardening
  • Grade P-6
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AISI P-6 Case Hardening Steel Round Bar Rods Price And Quantity

  • 1 Kilograms
  • 484.0 INR/Kilograms

AISI P-6 Case Hardening Steel Round Bar Rods Product Specifications

  • 16 mm to 300 mm (custom sizes available)
  • Hot Rolled, Forged
  • Annealed or Hardened
  • Tool, Die, and Mold components requiring case hardening
  • h11, h13, or as specified
  • AISI, ASTM, DIN, JIS (varies as per manufacturer)
  • Tooling, dies, mold making, and other case hardening applications
  • Round Bar Rods
  • Black, Rough, Peeled, or Machined
  • P-6
  • Customizable; typically 2 to 6 meters
  • AISI P-6 Case Hardening Steel
  • As rolled or as forged (surface imperfections permissible as per standards)
  • Good in annealed condition
  • As per supplier terms
  • Standard export packaging, wooden box or as required by customer
  • Suitable for carburizing with excellent core strength
  • Solid (Round Bar/Rod)
  • Typically Annealed (approximately 207-229 HBW)
  • Moderate; not primarily designed for corrosion resistance
  • Oil or Air
  • 830-870C

Product Description

1. Material Identification and Cross References

  • AISI/SAE Designation: AISI P-6 (P6)

  • UNS Designation: UNS T51606

  • Tool Steel Type: Type P Low Carbon Mold Steel / Case-Hardening Alloy Steel

  • Trade / Proprietary Equivalent: Carpenter 158 / CarTech No. 158 / C-158

  • European / DIN Standards: DIN 1.2735 / DIN 15NiCr14 / EN ISO 4957

  • US Specifications: AMS 6265, ASTM A646, QQ-S-624C

2. Chemical Composition (Nominal Mass Percent)

  • Carbon: 0.10

  • Nickel: 3.50

  • Chromium: 1.50

  • Manganese: 0.50

  • Silicon: 0.30

  • Iron: Balance

3. Physical Properties

  • Density: 7.87 grams per cubic centimeter

  • Specific Gravity: 7.87

  • Modulus of Elasticity: 207 GPa

  • Modulus of Rigidity: 81.4 GPa

  • Coefficient of Thermal Expansion: 11.88 x 10^-6 per degree Celsius (20 to 100 degrees Celsius)

4. Mechanical Properties

  • Annealed Supply Hardness: Maximum 229 HBW (Brinell)

  • Core Tensile Strength: 1100 to 1300 MPa

  • Core Yield Strength (0.2% offset): Minimum 800 MPa

  • Core Impact Resistance (Charpy-V): High core toughness and fracture energy absorption

  • Achievable Surface Hardness: 60 to 64 HRC (after carburizing, quenching, and tempering)

5. Heat Treatment Parameters

  • Forging: 1100 to 1150 degrees Celsius (Do not work below 900 degrees Celsius)

  • Soft Annealing: 650 to 700 degrees Celsius followed by slow furnace cooling

  • Stress Relieving: 590 to 650 degrees Celsius

  • Carburizing Temperature: 870 to 925 degrees Celsius (Target case carbon depth: 0.80% to 1.00%)

  • Quenching / Hardening: 775 to 815 degrees Celsius in oil

  • Sub-Zero Treatment: -73 degrees Celsius for 1 hour (Optional to minimize retained austenite)

  • Tempering: 150 to 200 degrees Celsius for low temperature stress relief

6. Manufacturing and Supply Specifications

  • Available Formats: Hot Rolled Round Bars, Cold Drawn Rods, Forged Round Shafts, Centerless Ground Bars

  • Diameter Range: 6 mm to 800 mm (Standard Stocking: 12 mm to 400 mm)

  • Delivery Condition: Soft Annealed (+A) or Normalized

  • Surface Finishes: Black As-Rolled, Turn-Peeled, Centerless Ground, Bright Polished

  • Machinability Rating: Approximately 40 percent relative to standard 1212 carbon steel

7. Primary Industrial Applications

  • Zinc die casting dies and plastic injection molds requiring high core strength and surface polishability

  • Heavy-duty drive gears, transmission pinions, spline shafts, and bevel gears

  • Firearms receiver components, bolt carriers, and high-impact bolt heads

  • Pneumatic tools, rock drill shafts, and high-fatigue mechanical linkages

  • High-tensile clamping components, pins, and heavy industrial fasteners



Superior Case Hardening Capability

AISI P-6 Round Bar Rods are recognized for their excellent case hardening properties, making them a preferred choice for tooling and die applications where wear resistance and core strength are paramount. Their composition allows effective carburizing, providing a tough exterior and a resilient core.


Versatile Applications with Customizable Sizes

Available in diameters from 16 mm to 300 mm and standard lengths ranging from 2 to 6 meters, AISI P-6 bars can be tailored to precise specifications to meet diverse industrial requirements, from die sets to precision molds. Choices in finish and processing further enhance the product's adaptability.


Delivered in Optimal Condition for Machinability

These round bars are typically provided in an annealed condition-facilitating ease of machining before heat treatment. Their good machinability streamlines manufacturing workflows, reducing preparation time and operational costs for fabricators and toolmakers.

FAQ's of AISI P-6 Case Hardening Steel Round Bar Rods:


Q: How is AISI P-6 Case Hardening Steel typically processed for end-use applications?

A: AISI P-6 steel rods are generally delivered in an annealed state to ensure good machinability. For case hardening applications, the steel is carburized at high temperatures (830-870C), then quenched in oil or air depending on specifications. This process provides a hard, wear-resistant surface while maintaining a strong, tough core.

Q: What are the common applications for AISI P-6 Case Hardening Steel Round Bars?

A: These round bars are widely used in the manufacture of tools, dies, and mold components that require a hard exterior and tough core. Their excellent case hardening capability makes them suitable for high-wear industrial environments and precision engineering applications.

Q: When should AISI P-6 Case Hardening Steel be selected over other grades?

A: AISI P-6 should be chosen when both surface wear resistance and core strength are required, especially for components subjected to repeated impact or abrasion. Its case hardening capability and good machinability in the annealed state make it a strong candidate for demanding tooling applications.

Q: Where are AISI P-6 Round Bar Rods sourced or supplied in India?

A: These steel rods are available from a range of dealers, exporters, fabricators, manufacturers, producers, retailers, suppliers, and traders across India. Custom orders can be placed depending on size, finish, and packaging requirements.

Q: What are the benefits of using AISI P-6 steel for tooling and mold making?

A: By choosing AISI P-6 steel, manufacturers gain a material that combines excellent machinability with the ability to achieve a hard, wear-resistant surface after carburizing. This reduces wear, extends tool life, and improves overall production economy.

Q: How should AISI P-6 Round Bar Rods be stored and packed for export?

A: These bars are typically packaged in standard export-grade materials such as wooden boxes, or customized as per customer requirements, to ensure protection from handling damage and environmental factors during transit and storage.

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