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DIN 1.2311 Plastic Mould Steel Bars DIN 1.2311 Plastic Mould Steel Bars DIN 1.2311 Plastic Mould Steel Bars DIN 1.2311 Plastic Mould Steel Bars DIN 1.2311 Plastic Mould Steel Bars

DIN 1.2311 Plastic Mould Steel Bars

139.0 INR/Kilograms
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Product Details:

  • Product Form Blocks, Flats, Bars
  • Recyclable Yes
  • Hardness 300-350 HB (Brinell)
  • Temper Annealed
  • Chemical Composition C: 0.37-0.40%, Si: 0.20-0.40%, Mn: 1.30-1.60%, Cr: 1.80-2.10%, Mo: 0.15-0.25%
  • Coating Type Uncoated/Can be supplied with coating on request
  • Tensile Strength ~930 N/mm2
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DIN 1.2311 Plastic Mould Steel Bars Price And Quantity

  • 1 Kilograms
  • 139.0 INR/Kilograms

DIN 1.2311 Plastic Mould Steel Bars Product Specifications

  • C: ~0.38%, Cr: ~2.0%, Mo: ~0.2%, Mn: ~1.5%, Si: ~0.3%
  • Moderate
  • Mill Finish
  • Standard and Custom Sizes Available
  • Custom/As required
  • Steel Bars
  • Custom/As per order
  • Yes
  • N/A for Flat/Block - Custom for round bars
  • Plastic moulds, die holders, tool making, machinery components
  • Alloy Tool Steel
  • DIN 1.2311 / P20 / AISI P20
  • ~930 N/mm2
  • Metallic Grey
  • As per bar size and dimension
  • C: 0.37-0.40%, Si: 0.20-0.40%, Mn: 1.30-1.60%, Cr: 1.80-2.10%, Mo: 0.15-0.25%
  • Rough/Black/Plain
  • Uncoated/Can be supplied with coating on request
  • DIN 1.2311 Plastic Mould Steel Bar
  • Injection Moulding, Blow Moulding, Engineering Parts
  • Rectangular/Flat Bar
  • Annealed
  • 300-350 HB (Brinell)
  • Blocks, Flats, Bars
  • Yes
  • DIN, ASTM, AISI, JIS, EN
  • Custom/As required
  • Chromium-Molybdenum Alloy
  • 1.2311 / P20
  • Good
  • Can be hardened to higher values
  • Standard export packaging (wooden box/steel strip bundle/on request)
  • Annealed (as standard), Pre-hardened upon request
  • Good
  • 7.85 g/cm3
  • As per customer requirement
  • Homogeneous, fine structure

Product Description

Material Classification and Cross Reference

Material Designation Alloy Family Primary Form Application Method Equivalent Standard
DIN 1.2316 Martensitic Stainless Tool Steel Hot Rolled Forged Round Bar Machining Precision EDM Polishing EN ISO 4957 X38CrMo16
DIN X36CrMo17 Martensitic Stainless Tool Steel Flat Bar Forged Block Deep Cavity Injection Moulding DIN 17350 Standard Grade
AISI 420F Modified High Chromium Stainless Tool Steel Turned Peeled Round Bar CNC Milling Slotting Turning ASTM A681 USA Grade
JIS SUS420J2 Modified High Chromium Stainless Tool Steel Precision Ground Flat Plate Mirror Finish Mould Tooling JIS G4303 Japanese Standard

Nominal Chemical Composition

Element Element Name Minimum Mass Fraction Maximum Mass Fraction Nominal Value
Fe Iron Balance Balance 79.40
Cr Chromium 15.50 17.50 16.50
Mo Molybdenum 0.80 1.30 1.05
C Carbon 0.33 0.45 0.38
Mn Manganese 0.00 1.00 0.60
Si Silicon 0.00 1.00 0.50
Ni Nickel 0.00 1.00 0.50
P Phosphorus 0.00 0.03 0.015
S Sulfur 0.00 0.03 0.015

Physical and Mechanical Properties

Property Value Range Metric Units Imperial Units
Density 7.70 Grams per Cubic Centimeter 0.278 Pounds per Cubic Inch
Hardness Pre Hardened 28 to 32 Rockwell C Rockwell C
Hardness Quenched and Tempered 48 to 52 Rockwell C Rockwell C
Tensile Strength Ultimate 950 to 1100 Megapascals 138000 to 160000 Pounds per Square Inch
Yield Strength 800 to 920 Megapascals 116000 to 133000 Pounds per Square Inch
Modulus of Elasticity 215 Gigapascals 31200000 Pounds per Square Inch
Thermal Conductivity at 20 Celsius 18 to 20 Watts per Meter Kelvin 125 to 138 BTU Inch per Hour Square Foot Fahrenheit
Thermal Expansion Coefficient 10.5 to 12.0 Micrometers per Meter Kelvin 5.83 to 6.67 Microinches per Inch Fahrenheit
Maximum Service Temperature 400 Celsius 752 Fahrenheit


Versatile Applications in Moulding and Engineering

DIN 1.2311 Plastic Mould Steel Bars are widely used in injection and blow moulding processes, as well as the fabrication of die holders, tools, and general engineering components. This steel grade's balanced chemical composition and reliable mechanical properties make it especially suitable for complex machining and tool-making needs.


Customizable Solutions for Diverse Requirements

Whether you need standard or bespoke dimensions, these steel bars can be tailored to your specific project. Options include varying the width, thickness, length, and temper, along with custom packaging and coating choices, ensuring you receive the perfect material for your mould manufacturing.


Superior Machinability and Heat Treatment

Thanks to its homogeneous fine-grain structure, DIN 1.2311 offers good machinability and weldability, streamlining both production and finishing processes. The alloy can be hardened to higher values and maintains structural integrity under thermal processes, supporting a range of advanced manufacturing requirements.

FAQ's of DIN 1.2311 Plastic Mould Steel Bars:


Q: How are DIN 1.2311 Plastic Mould Steel Bars delivered?

A: These steel bars are typically supplied in an annealed condition, which offers ease of machining. Pre-hardened delivery is also available upon request to meet specific application requirements.

Q: What is the process for customizing the size and shape of these steel bars?

A: You can specify dimensions such as width, thickness, and length according to your project needs. The bars can be provided in rectangular, flat, or block forms. Minimum order quantity (MOQ) and precise sizing are handled based on customer requirements.

Q: When should I opt for a pre-hardened instead of annealed bar?

A: Pre-hardened bars are ideal when minimizing in-house heat treatment steps and reducing preparation time are priorities. They're particularly suited for urgent or high-efficiency projects, while annealed bars are preferred for greater machining flexibility and post-processing control.

Q: Where can DIN 1.2311 steel bars be effectively used?

A: They are best utilized in injection and blow moulding tools, die holders, tool and machinery component manufacturing, and wherever durable, moderate heat and corrosion-resistant alloy tool steel is needed.

Q: What benefits does DIN 1.2311 offer in mould making and engineering usage?

A: This alloy provides good machinability, weldability, and heat resistance up to 300C. It delivers a fine microstructure for consistent results, can be hardened as required, and is recyclable, making it both efficient in production and environmentally responsible.

Q: How is corrosion resistance ensured for these steel bars?

A: DIN 1.2311 offers moderate corrosion resistance due to its chromium and molybdenum content. Additional coatings can be supplied upon request to further enhance protection in more demanding environments.

Q: What packing methods are available for international delivery?

A: Bars are packed in standard export packaging such as wooden boxes, steel strip bundles, or as specified by customers, ensuring safe and secure transit to locations worldwide.

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