GGG40
NODULAR CAST IRON RODS |
|
Material No: GGG40 - DDK65 - ASTM 65-45-12 |
| Chemical Analysis % |
|
| C |
Si |
Mn |
S |
Mg |
P |
Balance |
| 3.40-3.85 |
2.30-3.10 |
0.1-0.3 |
0.02 max. |
0.045-0.065 |
0.1 max. |
Balance |
|
| Material Description |
|
In addition to good machinability and excellent surface quality, it offers high strength and wear resistance. Sound and vibration damping are good. |
| Applications |
Used where higher impact resistance, heat conductivity, and electrical conductivity are required. Not suitable for hardening by heat treatment. Resistant up to 620 bar pressure at 2 mm wall thickness. |
| Mechanical Properties |
| Tensile Strength | 400 N / mm2 |
| Yield Strength | 250 N / mm2 |
| Hardness | 160-190HB |
| Elastic Modulus | 165 N / mm2 |
| Fatigue Limit | 220 N / mm2 |
| Vibration Damping | 80 CHARPY - DYM |
|
| Physical Properties |
| Specific Gravity | 7.2 g / m3 |
| Typical Microstructure | Minimum 80% ferrite |
| Conductivity | 20-100 C 36.5 watt / m C |
| Coefficient of Thermal Expansion | 20-100 C 11.10 - 6 / m C |
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