316 Precision ground bar supplier?

[Hood]

Anyone know of suppliers of precision ground 316 stainless bar. I used to just use normal run of the mill peeled bar for prop shafts on boats but recently I can't seem to get a straight one, last one I got was 5mm out of straightness over 3m Granted this was a bad one as I think it had been kicking around for a while but the got a new supply in and I got a friend to go round and check it and it was 1.27mm out of straightness.
The max I can have is 0.2mm out of straightness and looks like my only option now is to get ground bar but I am having trouble finding a supplier.
I have in the past got F51 Duplex from Valbruna but when I called the last day they said they don't do 316 even though their website says they do

Sizes I am usually doing are 1 1/4" to 2 1/4" and metric 30mm to 50mm.

 

[MattH]

You need to get yourself some Keith Fenner rollers.

 

[Hood]

You need to get yourself some Keith Fenner rollers.

I haven't managed to grow my beard long enough for the beads yet so.......

 

[Shox Dr]

A long shot but, Drill service may be able to help.

 

[Hood]

A long shot but, Drill service may be able to help.

Thanks, will look them up.

 

[henry Kadzielski]

Good afternoon Hood. Never got a straight one yet, always had to 'dress' them or detail them as required. Biggest so far has been 3" and I get them done at a shaft place, which they bend them in a jug which is about 7m long. The last one was finally withing 2thou along it's length of 5.8m, so not bad

 

[Hood]

Henry, the place I got the F51 from guaranteed within 0.1mm (I think it is) sadly they don't seem to do 316 although I may try again as the guy I was talking to didn't inspire much confidence.
Not wanting to get into straightening shafts myself and don't really know any place locally that does that, well I do but.....

 

[Hood]

Looks like I may have found a place, 5-10thou straightness should be fine.
https://www.millstockstainless.com/laser-welded-sections-precision-ground-shafts