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Gray cast iron DIN 1691 GG15 has many equivalent grade in other countries.
The alternative names and equivalent grades:
Gray Cast Iron GG15 (DIN 1691), EN-GJL-150 (EN 1561), GRADE 150 (ISO 185), HT150 (GB 9439), CLASS 20 (ASTM A48), CLASS 25 (ASTM A48), FC150 (JIS G5501), G15 (UNI 5007), FGL150 (NF A32-101), 150 (BS 1452), FG15 (UNF), FGG15 (NBN 830-01), T150 (AS 1830), T180 (AS 1830), O115 (SS 14 01), SJG150 (NS11 100)
Important Note:
As the material property values below are generalized figures only for quick reference and may only be applicable to certain test conditions. Thus, it is normal if you find the figures different from other reference sources that are based on a different set of test conditions
Material Properties for Gray Cast Iron DIN 1691 GG15:
Material Property |
Values |
Glass Transition Temperature |
- |
Melting Temperature |
1150 - 1200 ℃ |
Service Temperature |
- |
Density |
7 - 7.1 g/cm³ |
Young's Modulus, E |
75 - 103 GPa |
Compressive Strength, σc |
- |
Yield Strength, σy |
215 - 790 MPa |
Tensile Strength, σts |
150 - 250 MPa |
Poisson's Ratio |
0.21 - 0.26 |
Shear Modulus, G |
30 - 40.5 GPa |
Vickers Hardness |
- |
Fracture Toughness, KIC (plane-strain) |
22 - 54 MPa/√m |
Thermal Conductivity, λ |
50 W/m.K |
Thermal Expansion, α |
10 - 13 E-6/C |
Production Energy |
16.4 - 18.2 MJ/kg |
CO2 Emission |
1 - 1.1 kg/kg |
Fire Resistance |
Excellent |
Fresh Water Resistance |
Good |
Salt Water Resistance |
Average |
Sunlight/UV Resistance |
Excellent |
Wear Resistance |
Excellent |
Common Application for DIN 1691 GG15 Gray Cast Iron:
Under moderate load of castings, such as the base, frame, box, knife, bed, bearing seat, table, wheels, cover, pump, valve, pipe, flywheel, motor blocks and other. |
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