Stal w Gat. AISI 446

Typowe parametry stali w gat. AISI 446

ALLOY TYPE 446

Melt temperature range °C 1430 – 1510
Thermal conductivity @ 540°C Kcal/ m2 h.°C 69.8
Modulus of elasticity @ 870°C x 10 6 Kg/cm2 0.984
Fiber tensile strength @ 870 Kg/cm 2 540
Coef. of thermal expansion @ 870 x 10 -6 / °C 13.14
Critical oxidation temperature °C 1200
Increased flexural strength of 60 % alumina
refractory fired at 870°C (1600°F) for 8 hrs1,3 V. % fiber 1.15
Increased energy absorption 60 % alumina ref.
fired at 870°C (1600°F) for 8 hrs. 10 =>12
Carburization increase in carbon content %
in 25 hrs @ 982°C (1800°F) 0.07
Corrosion rate in coke oven gas at 982°C (1800°F) Mils/yr 14
Corrosion rate nitriding Mils/yr 1120
Oxidation cycling conditions 1000 hrs wt % loss @ 100 hrs 4%