Stainless Steel 446

Technical Data Sheet


Chemical Composition Limits
Weight% C Si Mn P S Cr N
Alloy 446
0.20 max 0.5 0.8 0.030 max 0.015 max 26.5 0.2

Alloy 446 is a ferritic, heat resisting, stainless chromium steel. Alloy 446 has extremely good resistance to reducing sulphurous gases, as well as very good resistance to oxidation in air. Alloy 446 also has good resistance to oil-ash corrosion and resistance to molton copper, lead and tin.

Alloy 446 is available as Bar (Round), Tube Pipe. For all stock availability contact Sales.

ASTM A276 / ASME SA276
ASTM 446-1
AISI 446
WS 1.4749
DIN X18CrN28
UNS S44600
SS 2322

At Aircraft Materials we specialise in the rapid turn-around of orders, with most stock items ready for shipping out the same day to anywhere in the world. For time-critical orders, such as AOGs use our AOG service desk (, the team are dedicated to processing and dispatching orders on the same day, even for cutting orders on bar and sheet products.

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Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.