Austenitic alloys for turbochargers

A turbocharger housing for an internal combustion engine comprising an iron-based austenitic alloy, wherein the iron-based austenitic alloy consists of the following composition:

• C:
• 0.3 to 0.45 wt. %,
• Cr:
• 20 to 22 wt. %,
• Mn:
• 9.5 to 11.5 wt. %,
• Ni:
• 3 to 4 wt. %,
• Si:
• 1.2 to 2.1 wt. %,
• Nb:
• 0.4 to 0.6 wt. %,
• V:
• 0.3 to 0.6 wt. %,
• Mo:
• 0.3 to 0.6 wt. %,
• N:
• 0.1 to 0.35 wt. %;
• impurities in a total amount of less than 3 wt. %;
• and
• Fe as balance;
• wherein the turbocharger housing is cast from the iron-based austenitic alloy and wherein the iron-based austenitic alloy has a melting temperature of less than 1550° C.