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Supplier Of Stainless steel pipe in Mumbai | Maha Bhairav Stainless Steel

Supplier Of Stainless steel pipe in Mumbai | Maha Bhairav Stainless Steel

Supplier Of Stainless steel pipe in Mumbai | Maha Bhairav Stainless Steel
Supplier Of Stainless steel pipe in Mumbai | Maha Bhairav Stainless Steel

The Manufacturing Process

The manufacture of stainless steel involves a series of processes. First, the steel is melted,

To make stainless steel, the raw materials—iron ore, chromium, silicon, nickel, etc.—are melted together in an electric furnace. This step usually involves 8 to 12 hours of intense heat. Next, the mixture is cast into one of several shapes, including blooms, billets, and slabs.

and then it is cast into solid form. After various forming steps, the steel is heat treated and then cleaned and polished to give it the desired finish. Next, it is packaged and sent to manufacturers, who weld and join the steel to produce the desired shapes.

 

Melting and casting

  • 1 The raw materials are first melted together in an electric furnace. This step usually requires 8 to 12 hours of intense heat. When the melting is finished, the molten steel is cast into semi-finished forms. These include blooms (rectangular shapes), billets (round or square shapes 1.5 inches or 3.8 centimeters in thickness), slabs, rods, and tube rounds.

Forming

  • 2 Next, the semi-finished steel goes through forming operations, beginning with hot rolling, in which the steel is heated and passed through huge rolls. Blooms and billets are formed into bar and wire, while slabs are formed into plate, strip, and sheet. Bars are available in all grades and come in rounds, squares, octagons, or hexagons 0.25 inch (.63 centimeter) in size. Wire is usually available up to 0.5 inch (1.27 centimeters) in diameter or size. Plate is more than 0.1875 inch (.47 centimeter) thick and over 10 inches (25.4 centimeters) wide. Strip is less than 0.185 inch (.47 centimeter) thick and less than 24 inches (61 centimeters) wide. Sheet is less than 0.1875 (.47 centimeter) thick and more than 24 (61 centimeters) wide.

Heat treatment

  • 3 After the stainless steel is formed, most types must go through an annealing step. Annealing is a heat treatment in which the steel is heated and cooled under controlled conditions to relieve internal stresses and soften the metal. Some steels are heat treated for higher strength. However, such a heat treatment—also known as age hardening —requires careful control, for even small changes from the recommended temperature, time, or cooling rate can seriously affect the properties. Lower aging temperatures produce high strength with low fracture toughness, while higher-temperature aging produces a lower strength, tougher material.Though the heating rate to reach the aging temperature (900 to 1000 degrees Fahrenheit or 482 to 537 degrees Celsius) does not effect the properties, the cooling rate does. A post-aging quenching (rapid cooling) treatment can increase the toughness without a significant loss in strength. One such process involves water quenching the material in a 35-degree Fahrenheit (1.6-degree Celsius) ice-water bath for a minimum of two hours.

Descaling

  • 4 Annealing causes a scale or build-up to form on the steel. The scale can be removed using several processes. One of the most common methods, pickling, uses a nitric-hydrofluoric acid bath to descale the steel. In another method, electrocleaning, an electric current is applied to the surface using a cathode and phosphoric acid, and the scale is removed. The annealing and descaling steps occur at different stages depending on the type of steel being worked. Bar and wire, for instance, go through further forming steps (more hot rolling, forging, or extruding) after the initial hot rolling before being annealed and descaled. Sheet and strip, on the other hand, go through an initial annealing and descaling step immediately after hot rolling. After cold rolling (passing through rolls at a relatively low temperature), which produces a further reduction in thickness, sheet and strip are annealed and descaled again. A final cold rolling step then prepares the steel for final processing.

Cutting

  • 5 Cutting operations are usually necessary to obtain the desired blank shape or size to trim the part to final size. Mechanical cutting is accomplished by a variety of methods, including straight shearing using guillotine knives, circle shearing using circular knives horizontally and vertically positioned, sawing using high speed steel blades, blanking, and nibbling. Blanking uses metal punches and dies to punch out the shape by shearing. Nibbling is a process of cutting by blanking out a series of overlapping holes and is ideally suited for irregular shapes.Stainless steel can also be cut using flame cutting, which involves a flame-fired torch using oxygen and propane in conjunction with iron powder. This method is clean and fast. Another cutting method is known as plasma jet cutting, in which an ionized gas column in conjunction with an electric arc through a small orifice makes the cut. The gas produces extremely high temperatures to melt the metal.

Finishing

  • 6 Surface finish is an important specification for stainless steel products and is critical in applications where appearance is also important. Certain surface finishes also make stainless steel easier to clean, which is obviously important for sanitary applications. A smooth surface as obtained by polishing also provides better corrosion resistance. On the other hand, rough finishes are often required for lubrication applications, as well as to facilitate further manufacturing steps.Surface finishes are the result of processes used in fabricating the various forms or are the result of further processing. There are a variety of methods used for finishing. A dull finish is produced by hot rolling, annealing, and descaling. A bright finish is obtained by first hot rolling and then cold rolling on polished rolls. A highly reflective finish is produced by cold rolling in combination with annealing in a controlled atmosphere furnace, by grinding with abrasives, or by buffing a finely ground surface. A mirror finish is produced by polishing with progressively finer abrasives, followed by extensive buffing. For grinding or polishing, grinding wheels or abrasive belts are normally used. Buffing uses cloth wheels in combination with cutting compounds containing very fine abrasive particles in bar or stick forms. Other finishing methods include tumbling, which forces
    The initial steel shapes—blooms, billets, slabs, etc.—are hot rolled into bar, wire, sheet, strip, and plate. Depending on the form, the steel then undergoes further rolling steps (both hot and cold rolling), heat treatment (annealing), descaling Ito remove buildup), and polishing to produce the finished stainless steel. The steel is then sent the end user.

    movement of a tumbling material against surfaces of parts, dry etching (sandblasting), wet etching using acid solutions, and surface dulling. The latter uses sandblasting, wire brushing, or pickling techniques.

 

Stainless Steel Flanges & Fitting In Mumbai | Maha Bhairav Stainless Steel

Stainless Steel Flanges & Fitting In Mumbai | Maha Bhairav Stainless Steel

Stainless Steel Flanges & Fitting In Mumbai | Maha Bhairav Stainless Steel
Stainless Steel Flanges & Fitting In Mumbai | Maha Bhairav Stainless Steel

We export these Stainless Steel Fasteners globally such as Peru, United States, Philippines, Canada, United Kingdom, United Arab Emirates, Singapore, Malaysia, Saudi Arabia, Indonesia, Thailand, Pakistan, Qatar, Australia, South Korea, South Africa, Iran, Turkey, Italy, Germany, Oman, Taiwan, Nigeria, Vietnam, Egypt, Mexico, Spain, Bahrain, Kuwait, Hong Kong, Netherlands, Bangladesh, Israel, Poland, Brazil, Norway, Sri Lanka, New Zealand, France, Finland, Romania, Denmark, Japan, Belgium, Russia, Kenya, Ireland, Greece, Portugal, Hungary, Serbia, Croatia, Bulgaria, Venezuela, Lithuania, Myanmar (Burma), Colombia, Azerbaijan, Iraq, Brunei, Laos, Cambodia, China, Czech Republic, Algeria, Chile and Croatia.

We have a wide network in India & overseas to supply urgent delivery of SS Fasteners including Mumbai, Courbevoie, Faridabad, Chiyoda, Bangkok, Perth, Sharjah, Ahvaz, Ankara, Nashik, Petaling Jaya, Rajkot, Jakarta, Seoul, Al Khobar, Madrid, Calgary, Santiago, Lahore, Cairo, Gurgaon, Noida, Surat, Visakhapatnam, Navi Mumbai, Brisbane, Lagos, Karachi, Port-of-Spain, Thane, Houston, New Delhi, Ho Chi Minh City, Kolkata, Ernakulam, La Victoria, Dubai, Abu Dhabi, Melbourne, Sydney, Caracas, Doha, Vung Tau, Dammam, Kuala Lumpur, Geoje-si, Ludhiana, Secunderabad, Hong Kong, Mumbai, Milan, Bogota, Indore, Montreal, Toronto, Vadodara, Hyderabad, Nagpur, Thiruvananthapuram, Coimbatore, Kuwait City, Manama, Los Angeles, Pune, Bengaluru, Dallas, Mexico City, Kanpur, Jaipur, Aberdeen, Jamshedpur, Bhopal, Jeddah, Hanoi, Riyadh, Baroda, Chennai, Ahmedabad, Ranchi, Algiers, Moscow, Granada, Busan, New York, Rio de Janeiro, Singapore, Edmonton, Al Jubail, London, Chandigarh, Colombo, Howrah, Ulsan, Atyrau, Pimpri-Chinchwad, Muscat, Haryana, Istanbul, Gimhae-si & Tehran.

A wide range of ss anchor fasteners, ss snap fasteners, ss stud fasteners, ss fasteners manufacturers, ASTM A193 Stainless Steel Fasteners & ASTM A194 Stainless Steel Fasteners.

Carbon Steel Pipes Suppliers In Mumbai | Maha Bhairav Stainless Steel

Carbon Steel Pipes Suppliers In Mumbai | Maha Bhairav Stainless Steel

Carbon Steel Pipes Suppliers In Mumbai | Maha Bhairav Stainless Steel

How to Prevent Rust on Metal

For Carbon Steel Pipes Suppliers In Mumbai Contact Maha Bhairav Stainless Steel

Rust is a form of iron oxide. It occurs when iron combines with the oxygen in the air causing it to corrode. Rust is the orange-brown discoloration that builds upon metal.

For example, iron tools are prone to rust from long-term exposure to moisture, while a copper roof will tarnish under the effects of the weather. While some metals stand up to corrosion better than others (depending on the environment), none are free from every type of corrosion.

Rust can affect iron and its alloys, including steel. Whenever you have iron, water, and oxygen together, you get rust. The main catalyst for rust to occur is water.

Although iron and steel structures seem solid to the eye, water molecules are able to penetrate microscopic gaps in the metal. This starts the process of corrosion.

If salt is present, for example in seawater, the corrosion will be more rapid. Exposure to sulfur dioxide and carbon dioxide will also hasten the corrosive process.

Each type of metal has different electrochemical properties. These properties determine the types of corrosion the part is vulnerable to.

Rust is a form of iron oxide which forms when iron or iron alloys (such as steel) interact with oxygen in the air and cause corrosion.

The primary cause for rust is water, which can penetrate microscopic gaps in metals and begin slowly causing them to simultaneously expand and weaken. If salt is present, the process only accelerates. Several other factors can cause rust, however. Let’s take a look at a few.

There’s a reason people use the iron for tools, machines, and buildings — iron is abundant, strong, and an essential part of nurturing life on earth.

However, as powerful as this metal is, it can be destroyed by the simple combination of oxygen and moisture. Yep, rust. Read through our rust prevention guide to learn how to stop rust on metal surfaces.

So does this happen to every metal that gets exposed to the elements? Not exactly, because technically only iron rusts. We know, you may be thinking: 

But everybody’s seen rusty copper pennies, and silver jewelry definitely looks rusty when it’s left in the water.” That’s because of metals like copper, aluminum, silver, and even gold experience corrosion. Corrosion is the result of a chemical reaction to an oxidant, and rust is a specific type of corrosion caused by water and oxidation.

The best method will effectively remove surface rust, but minimize impact to the bulk stainless steel substrate. Abrasive techniques like sandblasting, abrasive pads, or abrasive rubbing compounds can damage the surface finish and embed particulates into the surface.

Coatings can provide a layer of protection against corrosion by acting as a physical barrier between the metal parts and oxidizing elements in the environment. One common method is galvanization, in which manufacturers coat the part with a thin layer of zinc.

So, what’s the biggest difference between a green patina on a penny and rust on creaky iron chains? The patina on a penny is tarnished, meaning it doesn’t penetrate the materials below the surface.

Tarnish only affects the top layers of metal, and actually works as a seal to protect the deeper layers from oxygen that leads to more damage.

Ferrous metals like iron and steel can oxidize to form rust. This weakens the metal and can cause the failure of the part. To avoid rust and corrosion, a variety of different coatings can be applied to the metal. Coatings are designed to prevent oxidation by keeping the part from exposure to oxygen and water.

Many environmental factors impact the likelihood of corrosion. It helps to keep metal parts in a clean, dry place when not in use. If you intend to store them for a long time, consider using methods to control the level of sulfur, chloride, or oxygen in the surrounding environment.

Putting iron through different processes is one of the major causes of corrosion. It could be the cleaning process, or it could be a fabrication process like cold working, heat treating, machining, or handling. Protecting iron in this stage is crucial — and many manufacturers consider rust prevention at this stage.

Red rust is caused by the combination of moisture and a contaminant like salt, which is why it so often occurs near faucets, docks, tractors, cars, and ships. When you experience red rust, you’ll also notice uniform corrosion.

Drier than red and yellow rust, brown rust is caused by high oxygen and low moisture in the atmosphere. It can also be caused by contamination during the manufacturing stage. Brown rust is usually non-uniform, appearing in just some areas of the surface.

Clean the metal part or surface. It is important to remove any dirt or corrosion before applying any rust-preventative coating. Make sure the part is clean and dry.

Additional preparation may be necessary depending on the coating you are applying. Follow the coating manufacturer’s directions for further preparation.

Your overlap joint certainly has two sides, and possibly four. The idea of a seal weld is to seal up the overlap area. This means putting a weld bead along the edge opposite the main weld and along any other open edges.

The thing to remember though is that these aren’t structural welds. Their purpose is to seal up the gap between the two plates.

Galvanic corrosion is what happens when two metals of different potential come into direct contact and exchange electrons like a battery, resulting in the weaker metal corroding.

Also known as dissimilar metal corrosion, the corrosion increases with the increased difference in metal materials. Simply put, the greater the difference in the potential of two metals, the greater the corrosion.

When a current flows through a path other than the one it is intended for, that’s when stray current corrosion occurs. With stray current corrosion.

The corrosion only occurs at the point of discharge — so there is no corrosion along with the system that carries the current, or at the point of entry. Because of this, many “cases” of stray current corrosion are misdiagnosed cases of another type of corrosion.