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Uddeholm Unimax

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Description

Electro Slag Remelted (ESR) steel with an exceptional combination of high ductility and hardness it is ideal for applications in injection moulding of plastics with fibre glass and/or highly abrasive reinforcements. The advantages are numerous: durability of the mould details in the injection of reinforced plastics, longer series and suitability for the compression moulding. With durability and high abrasive wear resistance, longer tool life, good surface treatment properties and very good temperability (guaranteed properties throughout the entire section).

Main applications

  • Aluminium and magnesium die casting moulds
  • Hot extrusion and forging dies
  • Wear resistant core pins

Delivery status

Annealed

Hardness of the supply

  • Min: -
  • Med: -
  • Max: 250 HB
  • Composition
  • Services
  • Heat Treatments
  • Download

Standards

  • W.Nr.: (Patent)

Profiles available

Thickness Tolerance
Round On Request .
Square On Request .
Rectangular On Request .

Chemical composition (%) 1

Min Med Max
C
0,45 0,55
Si
0,50
Mn
0,20 0,80
Cr
4,50 5,50
Mo
2,00 2,50
V
0,20 0,80

Physical properties

Density : 7,79
10ˉ⁶m/mK
20 a 100 ⁰C 20 a 200 ⁰C 20 a 300 ⁰C 20 a 400 ⁰C 20 a 500 ⁰C 20 a 600 ⁰C 20 a 700 ⁰C
--- 11,5 --- 12,30 --- --- ---
Thermal Conductivity W/mk
20 ⁰C 200 ⁰C 300 ⁰C 350 ⁰C 400 ⁰C 600⁰C 700 ⁰C
--- --- 25 --- --- 28 ---
GPa
-100 ⁰C 0 ⁰C 20 ⁰C 100 ⁰C 200 ⁰C 300 ⁰C 400 ⁰C 500 ⁰C 600 ⁰C
--- --- 213 --- 192 --- 180 --- ---

Mechanical properties

Condition Ø Thickness Mechanical properties
Hardness Rm Rp0,2 ReH RC A Z
Hardened and tempered - - - - - - - - -
Drawn (+C) - - - - - - - - -
Ground (+SH) - - - - - - - - -
N/A - - - - - - - - -
Hardened and tempered - - - - - - - - -
Drawn (+C) - - - - - - - - -
Ground (+SH) - - - - - - - - -
N/A - - - - - - - - -
Hardened and tempered - - - - - - - - -
Drawn (+C) - - - - - - - - -
Ground (+SH) - - - - - - - - -
N/A - - - - - - - - -
Hardened and tempered - - - - - - - - -
Drawn (+C) - - - - - - - - -
Ground (+SH) - - - - - - - - -
N/A - - - - - - - - -
Hardened and tempered - - - - - - - - -
Drawn (+C) - - - - - - - - -
Ground (+SH) - - - - - - - - -
N/A - - - - - - - - -
Hardened and tempered - - - - - - - - -
Drawn (+C) - - - - - - - - -
Ground (+SH) - - - - - - - - -
N/A - - - - - - - - -

Notes on mechanical properties

The hardness value is part of the material specification.

You can print this information
Updated on: 05.05.2022
  • Composition

    Standards

    • W.Nr.: (Patent)

    Profiles available

      • Round
      • On Request
      • .
      • Square
      • On Request
      • .
      • Rectangular
      • On Request
      • .

    Chemical composition (%) 1

    Min Med Max
    C
    0,45 0,55
    Si
    0,50
    Mn
    0,20 0,80
    Cr
    4,50 5,50
    Mo
    2,00 2,50
    V
    0,20 0,80

    Physical properties

    Density : 7,79
    10ˉ⁶m/mK
    20 a 100 ⁰C ---
    20 a 200 ⁰C 11,5
    20 a 300 ⁰C ---
    20 a 400 ⁰C 12,30
    20 a 500 ⁰C ---
    20 a 600 ⁰C ---
    20 a 700 ⁰C ---
    Thermal Conductivity W/mk
    20 ⁰C ---
    200 ⁰C ---
    300 ⁰C 25
    350 ⁰C ---
    400 ⁰C ---
    600⁰C 28
    700 ⁰C ---
    GPa
    -100 ⁰C ---
    0 ⁰C ---
    20 ⁰C 213
    100 ⁰C ---
    200 ⁰C 192
    300 ⁰C ---
    400 ⁰C 180
    500 ⁰C ---
    600 ⁰C ---

    Mechanical properties

    Please refer to the table in the downloads section.

    Notes on mechanical properties

    The hardness value is part of the material specification.

  • Services
  • Heat Treatments
  • Download

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Hardness HB

Hardness HRC

Resistance to abrasive wear

Resistance to adhesive wear

Resistance to tempering

Resistance to heat wear

Resistance to fatigue

Compressive strength

Toughness

Ductility

Corrosion resistance

Machinability

Suitability for welding

Suitability for polishing

Thermal fatigue

Suitability for nitriding

Suitability for texture

Number of cycles (Durability)

Creep resistance

Hardenability

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