STERN CORNER GAURDS

[Tuna Pursuit]

Got these back from the polisher yesterday!

 

[junkman]

"Show Off"! Those are sweet, I'd show'em off too. LOL

 

[Crusty Coastie]

Like em,where did you buy.I'd like to add to mine but transom has some curve.

 

[Tuna Pursuit]

Like em,where did you buy.I'd like to add to mine but transom has some curve.

I made them. You have to get a fab shop to come and template the boat and custom make them. The polisher is Circle Polishing in Newburyport MA.

 

[Crusty Coastie]

I made them. You have to get a fab shop to come and template the boat and custom make them. The polisher is Circle Polishing in Newburyport MA.

Cool Thanks,Pete

 

[El Mar]

Cold you make them out of plywood then bring that to a fabricator to copy?

 

[LuSea]

Those are beautiful ! Do you fab them in 10 Ga. or 3/16 ?

 

[Tuna Pursuit]

Cold you make them out of plywood then bring that to a fabricator to copy?

Maybe. I templated in cardboard then I modeled them in SOLIDWORKS then punch out of 1/16 aluminum and tacked those up and went back to fit on the boat and they need tweaks. If I had gone with my templates there would of been problems.

 

[Tuna Pursuit]

Those are beautiful ! Do you fab them in 10 Ga. or 3/16 ?

I used 10ga which is .180" thick. 3/16" is .187" nominal BUT is plate and has a scale on it that won't polish very good. 10ga is a sheet size and made in 2B P&O finish which is very smooth and polishes much easier. I considered 1/8 or 11ga but so glad I went 3/16 very low distortion from welding. I think 11ga would if moved all over the place.

 

[Jjammer]

Post pics when you mount em

 

[LuSea]

I used 10ga which is .180" thick. 3/16" is .187" nominal BUT is plate and has a scale on it that won't polish very good. 10ga is a sheet size and made in 2B P&O finish which is very smooth and polishes much easier. I considered 1/8 or 11ga but so glad I went 3/16 very low distortion from welding. I think 11ga would if moved all over the place.

Thanks for the explanation on the advantage of sheet vs plate and mill scale! I love learning from experts in their trade.

 

[Tuna Pursuit]

Post pics when you mount em

absolutely

 

[Tuna Pursuit]

Thanks for the explanation on the advantage of sheet vs plate and mill scale! I love learning from experts in their trade.

anytime, any questions about anything metal just ask.

 

[cdevil]

anytime, any questions about anything metal just ask.

would this work ? From speedy metals

316 Stainless Steel, Cold Rolled & Annealed, 2B Finish

Dimensions: 10ga (
.135")

Material: Stainless Steel

Grade: 316

Shape: Sheet
12"x24" Plate
Plus or Minus 1/4"
11.3184 lbs
Price:
$129.35

 

[Tuna Pursuit]

would this work ? From speedy metals

316 Stainless Steel, Cold Rolled & Annealed, 2B Finish

Dimensions: 10ga (
.135")

Material: Stainless Steel

Grade: 316

Shape: Sheet
12"x24" Plate
Plus or Minus 1/4"
11.3184 lbs
Price:
$129.35

Actually you know what I mis-spoke, you want 7ga, which is .180". I think the .135 it too thin

 

[Tuna Pursuit]

Actually you know what I mis-spoke, you want 7ga, which is .180". I think the .135 it too thin

But that is the correct type of material

 

[cdevil]

thank you

 

[c1steve]

Tuna Pursuit,

I do have a metal question. 316L vs 316, same with 304. The L means low carbon, so that the metal expands less when heated, and is less likely to crack, I have been told. This is best for exhaust components, etc. For parts that are only heated during manufacture, such as a Samson post, would not the non-L grade be stronger and better?

 

[Tuna Pursuit]

Tuna Pursuit,

I do have a metal question. 316L vs 316, same with 304. The L means low carbon, so that the metal expands less when heated, and is less likely to crack, I have been told. This is best for exhaust components, etc. For parts that are only heated during manufacture, such as a Samson post, would not the non-L grade be stronger and better?

300 series stainless is low carbon unless you get into 400 series and other alloys which have high carbon for things like knifes or parts for wear. So probably 25 years ago all the manufactures started making all T304 & T316 low carbon. There is really no difference that I am aware of. The 316 has higher nickel content and added molybdenum which is why it's better for marine. But it's all low carbon.

T304 is 18% Chromium/ 8% Nickel(18-8) no molybdenum.
T316 is 18% Chromium/10% Nickel/2-3% Moly(18-10)-the moly hepls with the corrosion resistance as well as a little more nickel

 

[Denis Nalepa]

Making a set for my 31 Duffy soon thanks for the inspiration.!! Made some in the past for some high end yachts
time for my boat.