bending stainless strip

[catalac08]

I need to bend some 50mm wide stainless strip 4mm thick into some u shaped brackets with 90 degree angles - is stainless (304) best bent cold or heated. If heated is best, what sort of temperature and is it necessary to anneal or heat treat after bending?

 

[philip_stevens]

My local SS fabricator bends it cold, and told me to bend some 5mm SS rod cold as well.

 

[P4Paul]

I am sure you are aware but you can't bend 4mm SS into a perfect 90 degree angle, the best you can do is produce a radius curve which gives a 90 degree return.

You need to find the bending allowance and add that into any width calculation before bending. I do have the information at work, but not with me at home - sorry.

If you know someone who has a Zeus Book (most engineers) the information is contained within it.

And I agree with bending it cold.

Hope this helps.

 

[VicS]

[ QUOTE ]
someone who has a Zeus Book

[/ QUOTE ] Look no further
Click on:-
<span style="color:white"> . . . . .. . . . . </span> the nearest to 4mm is 8 gauge

 

[dmayes]

Please remember that SS work hardens so get it right first time, you won't be able to straighten it out if you get it wrong.

 

[Nigel_Ward]

I would take the bar to a fabricator with a press. They will make a much better job than you can with a hammer and vice!

 

[30boat]

I've done perfect 90º bends with the help of my big vice and lump hammer.But a metal fabricator will do a neater job cheaply.