| Properties
Alloy 446 is a high chromium ferritic stainless steel commonly used in high temperature applications from 1500 degF to 2200 degF. 446 is the most oxidation resistant steel among the 400 series stainless'. Its resistance to cyclic oxidation is equal to or better than 309 and 310, but has lower strength at elevated temperatures.
Applications
Alloy 446 is used to make parts and equipment that require excellent high temperature resistance to oxidation and corrosion. Examples include: burners, boiler parts, thermocouple protectors, injector nozzles in molten compounds, flame rods and metal to glass bonding parts.
GPS Inventory Spotlight: 446
| Type |
Seamless & Welded Pipe |
Butt Weld Fittings |
Flanges & Pressure Fittings |
| Sizes |
1/4" thru 16" |
1/2" thru 12" |
All descriptions |
| Schedules |
Sch 10, 40, 80, 160 & XXH |
Sch 10, 40, 80, 160, & XXH |
|
ASTM Standards
| Bar |
Butt Weld Fittings |
Pipe, Welded & Seamless |
Plate |
| A276 |
A815 |
A268 |
A240 |
Minimum Physical Properties
| Tensile Strength |
Yield Strength |
Elongation |
Hardness |
| 65 KSI Min |
40 KSI Min |
20% Min |
B95 Max |
Chemical Composition (wt%)
| C |
Mn |
P |
S |
Si |
Ni |
Cr |
Fe |
N |
| 0.12 Max |
1.50 Max |
0.04 Max |
0.03 Max |
0.75 Max |
0.50 Max |
23.0 - 30.0 |
Balance |
0.10 - 0.25 |
|
