For long term service, it is best restricted to a maximum of 593°C, because of the long term exposure above 593°C,It will result in significant embrittlement.
Waayo, adeegga muddada dheer, waxaa fiican koobna ugu badnaan 593 °C, maxaa yeelay gaadhista muddo dheer kor 593 °C keeni doontaa in embrittlement weyn.