SS piano hinges

[Rum Buddies]

I'm building a door on the project boat and I'm looking for 2, 3-4' stainless piano hinges - does anybody know a cheap source or have any laying around they want to sell?

 

[Pippen]

Hey Poppa...

Just wanted to confirm what in fact they were....did a quick google and found these in Vancouver; they are longer than you are looking for....not sure if you could modify?

http://www.usedvancouver.com/classified-ad/Stainless-72-X-2-inch-Piano-hinges--_14247017

 

[Rum Buddies]

booya - thanks pippen I was quoted $130/pop yesterday for the exact same items - $14/piece is much easier to swallow.

 

[spring time]

lee valley tools might have them

 

[wolf]

TROTAC for all your boating needs.....

 

[AlK]

Just a heads up.
There is stainless and then there is stainless.

To test if it is really stainless, put a magnet to it. On real stainless a magnet will not stick to it.

 

[trophywife]

Just a heads up.
There is stainless and then there is stainless.

To test if it is really stainless, put a magnet to it. On real stainless a magnet will not stick to it.

excellent point,, dont think the 14 buckers are reel stainless,, but 130 a pop is rediculous,,,

 

[cargs]

http://www.mcmaster.com/#piano-hinges/=c5i031

not local but you can find exactly what you want.

 

[burnsy22]

Poppa Swiss....Send me a private message and I can tell you where to in your area...I sell stainless piano hinges as one of the many things I rep all over the island.

 

[cheech]

Home Depot has a few different types including SS. Not a $100 either.

 

[Rum Buddies]

My Dad got one from lifetimer for around $20 - just need one more - thanks for the leads boys.

 

[milwaukee]

Just a heads up.
There is stainless and then there is stainless.

To test if it is really stainless, put a magnet to it. On real stainless a magnet will not stick to it.

not quite true. Yes some grades of stainless are not magnetic.
How ever that same magnet test could fool you if you were testing a piece of SS that was cold worked when manafactured... ie, if the item was stamped, rolled or hammered cold when getting made.

That process suddenly makes that non magnetic piece of SS into magnetic.
So now someone would assume its a lower grade of stainless if the tested it with a magnet, when infact its the same grade of SS that is not magnetic yet still retains all the same properties.
Just something to think of when you grab that magnetic to test how high of grade of SS your buying.

 

[spring time]

isn't it the carbon in it that makes it magnetic and it's the carbon that rusts

 

[Fish-Hunter]

isn't it the carbon in it that makes it magnetic and it's the carbon that rusts

Not quite,

It is iron that is magnetic and it is the iron that rusts

The Carbon is used to make the steel harder and stronger. There is a general understanding that the High carbon content steels rust faster, but this is not because of the Carbon per-say, it is because the high Carbon content steels typically do not have many other alloys in them that help to prevent corrosion.

Hope that helps

 

[Labman2]

Unless it's 400 series.
Martensitic grades of stainless steel were developed in order to provide a group of stainless alloys that would be corrosion resistant and hardenable by heat treating. The martensitic grades are straight chromium steels containing no nickel. They are magnetic and can be hardened by heat treating. The martensitic grades are mainly used where hardness, strength, and wear resistance are required.

Type 410
Basic martensitic grade, containing the lowest alloy content of the three basic stainless steels (304, 430, and 410). Low cost, general purpose, heat treatable stainless steel. Used widely where corrosion is not severe (air, water, some chemicals, and food acids. Typical applications include highly stressed parts needing the combination of strength and corrosion resistance such as fasteners.

Type 410S
Contains lower carbon than Type 410, offers improved weldability but lower hardenability. Type 410S is a general purpose corrosion and heat resisting chromium steel recommended for corrosion resisting applications.

Type 414
Has nickel added (2%) for improved corrosion resistance. Typical applications include springs and cutlery.

Type 416
Contains added phosphorus and sulfur for improved machinability. Typical applications include screw machine parts.

Type 420
Contains increased carbon to improve mechanical properties. Typical applications include surgical instruments.

Type 431
Contains increased chromium for greater corrosion resistance and good mechanical properties. Typical applications include high strength parts such as valves and pumps.

Type 440
Further increases chromium and carbon to improve toughness and corrosion resistance. Typical applications include instruments.
Type 316 - 316L
Grade 316 is the standard molybdenum-bearing grade, second in importance to 304 amongst the austenitic stainless steels. The molybdenum gives 316 better overall corrosion resistant properties than Grade 304, particularly higher resistance to pitting and crevice corrosion in chloride environments. It has excellent forming and welding characteristics. It is readily brake or roll formed into a variety of parts for applications in the industrial, architectural, and transportation fields. Grade 316 also has outstanding welding characteristics. Post-weld annealing is not required when welding thin sections.

Grade 316L, the low carbon version of 316 and is immune from sensitisation (grain boundary carbide precipitation). Thus it is extensively used in heavy gauge welded components (over about 6mm). Grade 316H, with its higher carbon content has application at elevated temperatures, as does stabilised grade 316Ti.

 

[Charlie]

not quite true. Yes some grades of stainless are not magnetic.
How ever that same magnet test could fool you if you were testing a piece of SS that was cold worked when manafactured... ie, if the item was stamped, rolled or hammered cold when getting made.

That process suddenly makes that non magnetic piece of SS into magnetic.
So now someone would assume its a lower grade of stainless if the tested it with a magnet, when infact its the same grade of SS that is not magnetic yet still retains all the same properties.
Just something to think of when you grab that magnetic to test how high of grade of SS your buying.

X2
Yes, all stainless steel is NOT equal! I have been down this SS route many times over the years. With SS, you get what you pay for, but know what you are paying for!

For salt water use, you are better off sticking with Marine Grade - e.g. SS 316. If you can't get 316, look for 304! And YES, the alloy content is more resistant than your household stainless steel piano hinge grades... and YES, very much more expensive, but they will last a LOT longer then most of the others.
http://www.fanagalo.co.za/tech/tech_grade_316.htm

Your 400 grade "Ferritic" ARE magnetic!

Ferritic grades have been developed to provide a group of stainless steel to resist corrosion and oxidation, while being highly resistant to stress corrosion cracking. These steels are magnetic but cannot be hardened or strengthened by heat treatment. They can be cold worked and softened by annealing. As a group, they are more corrosive resistant than the martensitic grades, but generally inferior to the austenitic grades. Like martensitic grades, these are straight chromium steels with no nickel. They are used for decorative trim, sinks, and automotive applications, particularly exhaust systems.

Type 430 The basic ferritic grade, with a little less corrosion resistance than Type 304. This type combines high resistance to such corrosives as nitric acid, sulfur gases, and many organic and food acids.

Type 405 Has lower chromium and added aluminum to prevent hardening when cooled from high temperatures. Typical applications include heat exchangers.

Type 409 Contains the lowest chromium content of all stainless steels and is also the least expensive. Originally designed for muffler stock and also used for exterior parts in non-critical corrosive environments.

Type 434 Has molybdenum added for improved corrosion resistance. Typical applications include automotive trim and fasteners.

Type 436 Type 436 has columbium added for corrosion and heat resistance. Typical applications include deep-drawn parts.

Type 442 Has increased chromium to improve scaling resistance. Typical applications include furnace and heater parts.

Type 446 Contains even more chromium added to further improve corrosion and scaling resistance at high temperatures. Especially good for oxidation resistance in sulfuric atmospheres.

http://www.spiusa.com/Ref001/ferritic1.html