Home Products Steels and Alloys Cast Iron

GG25

detalhe

Main applications

  • Sliding parts
  • Pulleys and hydraulic distribution blocks (good machinability)

Delivery status

The lamellar graphite DIN 1691

Hardness of the supply

  • Min: -
  • Med: -
  • Max: 260 HB
  • Composition
  • Services
  • Heat Treatments
  • Download

Profiles available

Thickness Tolerance
Round 40 - 250 mm

Chemical composition (%) 1

Min Med Max
C
3,40
Si
2,50
Mn
0,70
P
0,100
S
0,120

Physical properties

Density : 7,20
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
--- 11,7 --- 13 --- --- ---
Thermal Conductivity W/mk
20 ⁰C 200 ⁰C 300 ⁰C 350 ⁰C 400 ⁰C 600⁰C 700 ⁰C
--- --- 47,5 --- --- --- ---
GPa
-100 ⁰C 0 ⁰C 20 ⁰C 100 ⁰C 200 ⁰C 300 ⁰C 400 ⁰C 500 ⁰C 600 ⁰C
--- --- 103 - 118 --- --- --- --- --- ---

Mechanical properties

Condition Ø Thickness Mechanical properties
Hardness Rm Rp0,2 ReH RC A Z
Hardened and tempered 5 - 50 - - - - - - -
Drawn (+C) 5 - 50 - - - - - - -
Ground (+SH) 5 - 50 - - - - - - -
N/A 5 - 50 - - - - - - -
Hardened and tempered 50 - 100 - - - - - - -
Drawn (+C) 50 - 100 - - - - - - -
Ground (+SH) 50 - 100 - - - - - - -
N/A 50 - 100 - - - - - - -
Hardened and tempered 100 - 200 - - - - - - -
Drawn (+C) 100 - 200 - - - - - - -
Ground (+SH) 100 - 200 - - - - - - -
N/A 100 - 200 - - - - - - -
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 specification of the material.

You can print this information
Updated on: 11.12.2017
  • Composition

    Profiles available

      • Round
      • 40 - 250 mm

    Chemical composition (%) 1

    Min Med Max
    C
    3,40
    Si
    2,50
    Mn
    0,70
    P
    0,100
    S
    0,120

    Physical properties

    Density : 7,20
    10ˉ⁶m/mK
    20 a 100 ⁰C ---
    20 a 200 ⁰C 11,7
    20 a 300 ⁰C ---
    20 a 400 ⁰C 13
    20 a 500 ⁰C ---
    20 a 600 ⁰C ---
    20 a 700 ⁰C ---
    Thermal Conductivity W/mk
    20 ⁰C ---
    200 ⁰C ---
    300 ⁰C 47,5
    350 ⁰C ---
    400 ⁰C ---
    600⁰C ---
    700 ⁰C ---
    GPa
    -100 ⁰C ---
    0 ⁰C ---
    20 ⁰C 103 - 118
    100 ⁰C ---
    200 ⁰C ---
    300 ⁰C ---
    400 ⁰C ---
    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 specification of the material.

  • Services
  • Heat Treatments
  • Download

Advanced Search

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

Find products

If you do not find the configuration you are looking for, please see Advanced Search.

Advanced Search
Quote Request