Block of steel/cast iron wanted

[akjeff]

Ebay to the rescue, steel is incoming!

 

[erikmannie]

You can inscribe a 3 3/4” square in a 5.3” circle. Thus, you can buy a 3” length of 6” round bar.

Square Inscribed in a Circle | Geometry Help

Finding the radius, diameter, circumference and area of a circle from the length of the side of a square inscribed in the circle, and vice versa.

geometryhelp.net

For example,

6 1/2" Diameter 8620 Steel Round Bar - 6.5" x 2.5" Length | eBay

Find many great new & used options and get the best deals for 6 1/2" Diameter 8620 Steel Round Bar - 6.5" x 2.5" Length at the best online prices at eBay! Free shipping for many products!

www.ebay.com

or

5.75 5-3/4" diameter A2 Tool steel ROUND Cut to length Bar per 1" Lathe Stock | eBay

Find many great new & used options and get the best deals for 5.75 5-3/4" diameter A2 Tool steel ROUND Cut to length Bar per 1" Lathe Stock at the best online prices at eBay! Free shipping for many products!

www.ebay.com

or

5 3/8“ Diameter 303 Rough Turned Stainless Steel Round Bar 5.375" x 2.56”Length | eBay

<p>5 3/8” Diameter 303 Rough Turned Stainless Steel Round Bar 5.375" x 2.5625" Length</p>

www.ebay.com

or

5 3/4" Diameter 304 Stainless Steel Round Bar 5.75" x 2.625" Length | eBay

Find many great new & used options and get the best deals for 5 3/4" Diameter 304 Stainless Steel Round Bar 5.75" x 2.625" Length at the best online prices at eBay! Free shipping for many products!

www.ebay.com

or

5 3/8" Diameter 4140 Heat Treated Steel Round Bar Stock - 5.375" x 4.25" Length | eBay

<p>5 3/8" Diameter 4140 Heat Treated Steel Round Bar Stock - 5.375" x 4.25” Length</p>

www.ebay.com

or

5 3/4" Diameter 304 Stainless Steel Round Bar / Rod - 5.75" x 2.9375" Length | eBay

<p>5 1/4" Diameter 304 Stainless Steel Round Bar 5.25" x 2.875" Length</p>

www.ebay.com

or

5 1/2" Diameter 4340 Steel Round Bar - 5.5" x 4.25" Length | eBay

Find many great new & used options and get the best deals for 5 1/2" Diameter 4340 Steel Round Bar - 5.5" x 4.25" Length at the best online prices at eBay! Free shipping for many products!

www.ebay.com

 

[erikmannie]

I was very thorough about searching eBay, but I did not find mild steel or cast iron.

 

[akjeff]

Thanks E! Got be on the right path. I was able to find and ebay seller who had 1045 steel, which should be fine.

 

[erikmannie]

Thanks E! Got be on the right path. I was able to find and ebay seller who had 1045 steel, which should be fine.

Have fun machining your plinth!

One more for good measure:

5 3/4" Diameter 1018 Hot Rolled Steel Round Bar Stock - 5.75" x 4.1875" Length | eBay

<p>5 3/4" Diameter 1018 Hot Rolled Steel Round Bar Stock - 5.75" x 4.1875" Length</p>

www.ebay.com

 

[erikmannie]

USPS prices for the flat rate boxes has revolutionized ordering metal online.

My local steelyard is always more expensive than eBay (for items that fit in a flat rate box).

 

[akjeff]

USPS prices for the flat rate boxes has revolutionized ordering metal online.

My local steelyard is always more expensive than eBay (for items that fit in a flat rate box).

Isn't that the truth! Flat Rate boxes are a life saver up here in Alaska. Total game changer. Had a pair of press plates for my shop press shipped in flat rate mailers from SWAG Offroad( awesome people and products). Barely squeaked under the weight limit! Got the **** eye from the mailman! FedEx now has flat rate boxes as well, but I've not tried them yet, and I don't know that many businesses are aware of them.

 

[Nogoingback]

1144 (stress-proof) would be good to look for as well. Machines nicely.

 

[akjeff]

Yep, 1144 really machines well, but no luck finding a suitable sized chunk, coupled with reasonable shipping. The 1045 I have on order should work fine.

 

[Toolmaker51]

Can't ponder what locations all you reside in, but my favorite supply was ASCO Metals, Santa Fe Springs CA.
A36, HR, CR, A2, D2, 01, W1, S series, H series, 4000 series............remnants up the wazoo. I moved, they haven't.
I recommend a bit of google and phone call. Wouldn't be surprised they conduct internet like they used to over the counter.