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high tensile stainless steel
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What is Pittsburghh joint in HAVC duct work?
Refer to the SMACNA reference for metal duct construction. The Pittsburg joint is used for most commonly fabricated metal retangular ducts. Most modern sheetmetal fabrication shops use a mechanized piece of equipment to create the Pittsbugh joint on one edge of the sheet metal that is being formed into a retangular duct. The Pittburgh joint is basically a series of bends in the sheetmetal that create a female joint that will accept the male end of the rectangular duct. The female joint includes an extended section of sheet metal that is mechanically or manually hammered over the male edge of the sheet metal once it is positioned within the Pittsburgh joint. It is much easier to understand when viewing a piece of flat piece of sheet metal that is being formed into a section of duct with a mechanized piece of equipment found in most sheet metal shops. I have created a Pittsburgh joint with a manual hand break for specialized duct fittings. I hope the information has been helpful. Ralph Pimentel C.B.O. Member ICC ICBO IAMPO Member Sheet Metal Workers Local #77 National Building Consultants Member State of Kansas Home Inspector Board, Vice Chairman
What is the advantage of a posidrive screw over a slot headed screw?
A posidrive screw stays centered over the driving tool. On Slotted head screws, the screwdriver can slip easily out of the groove. A very nice kind of screw is the "TORX" head screw. With the proper torx bit, they cannot slip or strip easily while screwing them into wood or metal.
What is difference between full strength butt weld and full penetration butt weld?
a weld that does exactly what it sounds like, the molten metal that is created when welding is created all the way through the materials being welded. for example, if it is a 1/16th inch steel plate, a full penetration weld would create a molten bead from the front to the back of the plate. A full pin weld is when u have a bevel on one side that u weld first flip it over arc air gouge the other side and weld that side up
What is strain and stress?
stress is load per unit area; when an object is loaded it is under stress and strain and it stretches (strains) until it breaks at its ultimate strength. Stress i srelated to strain in the elastic region by Hooke's law: stress = elastic modulus times strain where modulus is a property of the material and strain is deflection over length
What are baffles in water tube boilers?
Baffles in water tube boilers are generally spiral twisted pieces of metal (though other methods have been used) inserted into the flue tube to cause turbulence, in addition to back pressure for better heat extraction. Typically, the design is to break the laminar flow in the exhaust gases and allow a better heat transfer through the tube. This will lower stack temperature and increase over all thermal efficiencies in water tube boilers.
What is the world's strongest metal?
The world's strongest metal is titanium. Commercial grade Titanium (92% pure) is 63,000 psi (434 MPa), which can be compared to a low grade steel alloy but is 45% lighter. It is an alloy to natural elements tungsten, iridium and other metals including aluminum, molybdenum, iron, and manganese. It is also a super alloy of liqiud metal. Certain titanium alloys (e.g., Beta C) achieve tensile strengths of over 200,000 psi (1,400 MPa). Megapascal or MPa is a unit to measure tensile strength.
What is the tensile strength of stainless steel rod?
Stainless Steel 316 properties - Tensile Yield Strength (.2% offset): 276 MPa / 40 kpsi Ultimate Tensile Strength: 621 MPa / 90 kpsi Not sure which you're looking for, so both in case. Yield strength uses the slope of the initial elastic region of the stress-strain graph to determine a 0.2% offset along the curve; ultimate tensile strength is essentially the maximum stress experienced along the stress-strain curve.
What is the difference between tensile strength and tensile modulus?
Tensile strength is the ultimate capacity of the material to resist a tensile load regardless of deflection.Tensile modulus also known as Young's modulus, is a measure of the stiffness of an isotropic elastic material. It is defined as the ratio of the uniaxial stress over the uniaxial strain. It is determined from the slope of a stress-strain curve traced during tensile tests conducted on a sample of the material.
What is the advantage of alloy have over pure metal?
its stronger and is expands
How the tensile strength of a metal is increased by alloying?
Alloying metals make them stronger because in pure metals all the atoms are the same size and ordered but when another element is added then it makes the atoms irregular making the layers harder to shift, making it stronger.An alloy is a mixture of two elements, one of which is a metal. Alloys often have properties that are different to the metals they contain. This makes them more useful than the pure metals alone. For example, alloys are often harder than the metal they contain.Alloys contain atoms of different sizes, which distorts the regular arrangements of atoms. This makes it more difficult for the layers to slide over each other, so alloys are harder than the pure metal.
What is the hardest metal on earth?
Lutetium Metal, is the hardest metal of the rare-earths, used as important additive to some specialty alloy. Lutetium Metal can be further processed to various shapes of ingots, pieces, wires, foils, slabs, rods, discs and powder.Tungsten Carbide is thehardest metal alloy.
What is Dura-lumin?
First off, to answer what metals are in it, it is 93.5 percent aluminum, 4.4 percent copper, 1.5 percent magnesium, and 0.6 percent manganese. all around it shouldnt be to ridiculuosly expensive, although its not easy to tell any metals exact price being that it constantly changes. 2nd its properties include a good uts (ultimate tensile strength), its an adequatley lightweight metal thanks to the high aluminum content, and it is an age hardenable metal meaning it gets stronger as it is worked, and its molecular structure actualy decreases over the years, or, in other words it ages like a fine wine. and a high tensile strength allows it to be very useful in big factories, like the papermill my dad use to work at. and it was used on the hindenburg. (metalurgy, i guess some just have a passion for the weirdest).
Writing a conclusion on metal and alloys?
The alloys in all over world become popular so it has greater effect there are so many research is going on the topics of alloy to making a new alloy metals
What different alloy and metal?
metals are existing in nature and these are formed by minerals over a period of time while alloys are combination of different metals.
Why iron metal is used in building construction?
It deals with the tension and compression of the concrete. Concrete is a really great material when in comes to compression. It has a high strength in compression but little in the way of tension. You can test this for your self. Get a small unreinforced piece of concrete and pull it apart it ( put it in tension) and it breaks fairy easily. Now, try pushing together (put it in compression) and it doesn't break anywhere near as easily, if you can break it at all. Steel is the opposite. It has more strength in tension than in compression. Putting steel bars in concrete allows you to have good strength in compression and in tension. In an easy way to understand it and get the general idea, when the reinforced concrete is under tension, the steel bars take over, and when the reinforced concrete is under compression, the concrete takes over.
What is the maximum psi for titanium without breaking?
Commercial grade Titanium (92% pure) is 63,000 psi (434 MPa). Certain titanium alloys (e.g., Beta C) achieve tensile strengths of over 200,000 psi (1,400 MPa). Megapascal or MPa is a unit to measure tensile strength.
What is on silver jewelry?
Real 925 sterling silver jewelry consists of 92.5 percent pure silver with kind of alloy, typically copper.a layer of silver is placed over another metal or alloy, and can be scraped off or tarnished easily.
