I looked on the internet and found only one shop in the US that supplies B4A26 Steel products.Thanks for the reply Mech_Engineer. I saw that link earlier today, but the 'tires' bit through me off... Not to divulge too much info, but I do find it odd that an aircraft company would be using a "withdrawn" standard.
Is there anyone else who might have a more definitive answer? I'm just looking for all the info I can get.
Thanks for the interest thus far.
I checked MatWeb and I didn't find ASTM 551 grade. It's best to get the product specs from the supplier.Thanks for the reply, Astronuc.
That's pretty much the same conclusion I came up with. I already contacted that one shop, but I just wish there was some more technical info on this material directly. (A profile for it on MatWeb would have been nice.)
Thanks for the replies!