More stainless vs not

[johno]

While cruising for Charpy data I found the following comment from a British steel concern:

Aerospace Engineering Steels for Airframes

The greatest concentration of aircraft steel is in landing gear components where strength and impact toughness are essential, where integrity is crucial. In modern efficient braking systems, the heat generated in emergency situations such as an aborted take-off, can take components to temperatures as high as 550° C - temperatures that can cause softening in traditional high strength landing gear steels.

British Steel Engineering Steels is involved in the development of products with improved temper resistance properties.

Corrosion resistance is essential in all airframe components exposed to the elements. As cadmium plating falls from favour, alternative solutions have to be found.

The Ultimate Solution?

The Holy Grail would be a stainless steel that could match the high strength and toughness of current alloy steels, as well as withstand intense local corrosion.

While the industry recognises that this is virtually unattainable, British Steel Engineering Steels is working with some of the world's leading airframe manufactures to achieve the best compromise solution.

 

[storyville]

I see a CPM press release: "Stainless 3V shipments to knife makers postponed once again, as British steel co. purchases all initial supplies."

(Maybe they should just resign to carrying lots of Tuf-Cloth)

 

[johno]

The specs may have changed, but the last I heard about the 'stainless' 3V was that it would be more like D2, what many seem to call a semi-stainless with a high chrome content, than a regular stainless. Otherwise it seems that would end up with something like the 440V and 420V that they already have.

 

[storyville]

Yes, I believe its Cr content is figured at 12% +/-, i.e., similar to D2 as you noted.

(So is there anyone else reading this thread?)

gmm