Cast iron ductile iron GGG40 properties
Cast ductile iron GGG40 is a ductile iron grade of Germany standard.
Alternative names:
EN-GJS-400-15 (EU Steel Grade), EN-JL1030 (EU Steel Number), EN-GJS-400-18 (EU Steel Grade), 5.3105 (EU Steel Number), EN-GJS-400-18-LT (EU Steel Grade), 5.3103 (EU Steel Number), 60-40-18 (USA ASTM A536), 65-45-12 (USA ASTM A536), QT400.
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 Property | Values |
|---|---|
| Glass Transition Temperature | - |
| Melting Temperature | 1150 - 1250 ℃ |
| Service Temperature | -100 - 400 ℃ |
| Density | 7.1 - 7.3 g/cm³ |
| Young's Modulus, E | 167 - 170 GPa |
| Compressive Strength, σc | - |
| Yield Strength, σy | 250 MPa |
| Tensile Strength, σts | 400 MPa |
| Poisson's Ratio | 0.21 - 0.26 |
| Shear Modulus, G | - |
| Vickers Hardness | - |
| Fracture Toughness, KIC (plane-strain) | 22 - 54 MPa/√m |
| Thermal Conductivity, λ | 25 - 42 W/m.K |
| Thermal Expansion, α | 10 - 11.5 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 |
Their main mechanical properties are as followings:
Grades | Tensile Strength (Mpa) | Elongation (%) | Impact Resistance (J) |
EN-GJS-400-15 | ≥ 400 | ≥ 15 | Not Specified |
EN-GJS-400-18 | ≥ 400 | ≥ 18 | Not Specified |
EN-GJS-400-18LT | ≥ 400 | ≥ 18 | 12J at -20°C |