Cast iron with spheroidal graphite
Designation in accordance with DIN EN 16124/DIN EN 13835 |
EN-GJS-SiMo40-6 | EN-GJS-SiMo45-10 | EN-GJSA-XNiSiCr35-532 | ||
Reference analysis | C | 3.00 – 3.40 | 3.00 – 3.40 | max. 2.00 | |
for medium wall thicknesses | Si | 3.80 – 4.20 | 4.30 – 4.70 | 4.00 – 6.00 | |
Mn | max. 0.30 | max. 0.30 | 0.50 – 1.50 | ||
Mo | 0.5 – 0.70 | 0.80 – 1.10 | - | ||
Cr | - | - | 1.5 – 2.5 | ||
Ni | - | - | 34.0 – 36.0 | ||
Microstructure |
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Mechanical properties 1) | |||||
Tensile strength | Rm | MPa | 480 | 550 | 380 |
0.2 yield strength | Rp0.2 | MPa | 380 | 460 | 210 |
Elongation at fracture | A5 | % | 8 | 5 | 10 |
Elastic modulus | E | GPa | 160 – 180 | 160 – 180 | 130 – 150 |
Brinell hardness | BHN | 190 – 240 | 200 – 250 | 130 – 170 | |
at 780 °C2) | |||||
Tensile strength | Rm | MPa | 70 | 70 | 130 |
0.2 yield strength | Rp0.2 | MPa | 35 | 35 | 90 |
Elastic modulus | E | GPa | 30 | 30 | 100 |
Technological properties | |||||
Usage temperature | °C | < 700 | < 700 | < 900 | |
Machinability | Average | Average | Good | ||
Wear resistance | Good | Good | Average | ||
Induction or flame-hardening capacity | - | - | - | ||
Nitriding capacity | - | - | - | ||
Weldability | Only weldable using special electrodes | ||||
Physical properties | |||||
Density | ρ | kg/dm3 | 6.8 – 7.0 | 6.8 – 7.0 | 7.45 |
Thermal conductivity | λ | W/(K*m) | 22 – 26 (at 100 °C) 25 – 30 (at 400 °C) |
22 – 26 (at 100 °C) 25 – 30 (at 400 °C) |
12.6 (at 100 °C) - |
Thermal expansion coefficient | α up to 200 °C | 10-6/K | 11 – 13 | 11 – 13 | 12.9 |
Special materials or grades not listed available on request |
1) The mechanical properties of cast iron with spheroidal graphite in integrally cast Y-shaped test specimens (minimum values)
2) Literature values