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 all stock items can be shipped out within 24 hours, usually within the same day. Even cutting orders for bar or sheet can be processed and dispatched the same day, and for time-critical situations such as AOGs, we have a dedicated AOG service desk ready to help (

Thanks to our global logistics network we can source from anywhere in the world in just a few days. We use a range of transport partners to enable us to ship overnight within the U.K. and Europe and provide fast shipping solutions to the rest of the world. If your requirement is urgent we can offer a priority shipping service, but also if time is not so critical we can offer more cost-effective options to ensure you get the best value for money. To find out more about our services click here.

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.

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