[ Sunray ] 2B / BA Stainless Steel Coils

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As a premier stainless steel supplier in China, Foshan Sunray Steel Co.,Ltd has developed into a large integrated enterprise of stainless steel material’s design, processing and trading. Covering an area of 12000㎡ factory, We are the core agency of big mill of raw material with a professional exporting sales team, which the monthly volume of sales reach more than ten thousand tons.

We provide a full range of surface finish in decorative stainless steel, like 8K mirror, etched, embossed, brushed, lamination , etc. In many varieties, colors, patterns and designs, our products are widely used in buildings, decoration, kitchenware, and elevators. Through years of the business experience of these fields, we have the capabilities to suit your quality and price requirements.

_________   BA / 2A COLOR STAINLESS STEEL COILS   _________

Surface Finish: 2B / BA Finish
Grade: 201/304/304L/316/316L/430
Origin: POSCO, TISCO, LISCO, BAOSTEEL, HONGWANG, ESS, KRUPP, BAOXIN, JISCO, etc
Thickness: 0.3 - 3.0mm
Width: 1000mm/1219mm/1500mm, customized size is welcomed
Weight per Coil: 5 - 10MT
Technology: Hot Rolled / Cold Rolled
Edge: Mill edge / Slit Edge
Protection Film: Black-and-White film, transparent film, blue translucent film, Laser film, Poli-film
Application: non-decorative or functional sheet metal products, industrial refrigeration equipment, chemical plant and plumbing fixtures, high end cookware, marine applications, hospital equipment, kitchen sinks, construction and many more.

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Holly Zhang

E-mail: sales4@sunraysteel.com

Mob: 86-13417960037 / Tel: 86-0757-63999952

Skype: hollyzhang97

Address: 1507, A6, Hao Science Park, Guicheng, Nanhai District, Foshan, Guangdong, China.

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[ Wiki ]DIFFERENCE BETWEEN EXPANDED METAL, PERFORATED METAL AND WIRE MESH

_____________    CONTACT US   _____________

Holly Zhang

E-mail: sales4@sunraysteel.com

Mob: 86-13417960037 / Tel: 86-0757-63999952

Skype: hollyzhang97

Facebook: https://www.facebook.com/zhang.holly.5

Address: 1507, A6, Hao Science Park, Guicheng, Nanhai District, Foshan, Guangdong, China.

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If you are looking for a product that will allow ventilation, drainage, or perhaps add a decorative touch, your three main choices are Expanded Sheet Metal, Perforated Sheet Metal, or Welded/Woven Wire Mesh. So which one do you choose and why? To answer this question you must first consider differences in the ways they’re manufactured, their characteristics, and their end-uses.

Manufacturing Process

Expanded metal sheet

Expanded metal sheet is made by first creating multiple slits in the sheet, and then stretching the sheet. The stretching creates a unique diamond pattern opening with one of the strands protruding at a slight angle. These raised strands can be flattened later in the process if desired. As you can see this process creates no waste (thus keeping down production costs) and it can add structural strength to the product.

Perforated metal sheet

Perforated metal sheet is a product that is made from sheet steel that has been fed through a machine that punches out round holes (or other designs). These holes can be straight rows or staggered to increase the amount of the openings. Typically the perimeter of the sheet has a boundary where holes are not punched; this adds stability to the sheet. The removed metal from the holes can be recycled but it also increases the cost of the product. The larger the hole size (or increased amount of holes), the greater scrap volume, and therefore costs can be increased.

Wire mesh (welded)

Welded wire mesh is a metal wire screen that is made from various alloys including steel, stainless steel, brass and copper.  It is available in various sizes and shapes. Grids of parallel longitudinal wires are welded to cross wires at the required spacing, using electric fusion. The machines that are used to produce the mesh have precise dimensional control.

Wire mesh (woven)

Also available in steel, stainless steel, brass and copper, woven wire mesh is made as a cloth with wire threads woven at right angles. Wires which run lengthwise are known as warp wires, whilst those running perpendicular are weft wires. There are two common styles of weave: plain weave and twill weave. It can be made from various alloys including stainless steel, brass and copper. Wire cloth can be woven to create a variety of opening sizes and wire diameters.

Characteristics

Expanded metal sheet

One of the benefits from the manufacturing of expanded metal is that the sheet retains its structural integrity because it has not undergone the stress of having shapes punched in it (like perforated sheet), and the mesh-like pattern will not unravel (like woven mesh can do). Expanded metal has been stretched rather than punched, reducing scrap metal waste; making it cost-effective. The main considerations when using expanded metal will be the chosen thickness and strand dimensions (weight and structural design requirements). Expanded metal can be almost transparent (depending on the opening); it has mechanical properties and is an excellent conductor.

Perforated metal sheet

Perforated metal sheet comes in a virtually endless variety of sizes, gauges, hole shapes and material types. Hole diameters range from a few thousandths of an inch to more than 3 inches, punched in material as thin as foil or as thick as 1-inch steel plate. From lightweight decorative elements to load-bearing structural components, perforated metal offers unique opportunities to combine strength, functionality and beauty.

Wire mesh (welded)

The chance of improper bending of bars is reduced since bending machines bend the mat as a single unit. This provides the exact size of reinforcement where needed through variable bar size and spacing, thereby reduces steel waste. There can be a considerate savings because mesh is easy to handle and can be installed much faster. Typically you can purchase a welded mesh for less than a woven mesh.

Wire mesh (woven)

Wire mesh is adaptable to almost any application. It is extremely durable and very easily cleaned.

Typical end uses

Expanded metal sheet

Expanded metal sheet works well for steps, flooring in factories and on construction rigging, fences, wash stations, and security applications.

Perforated metal sheet

Perforated metal can be made into a multitude of products such as: screens, filters, baskets, trash cans, tubing, light fixtures, vents, audio speaker covers and patio furniture.

Wire mesh (welded)

Widely used in agricultural applications, industrial, transportation, horticultural and food procuring sectors. It is also used in mines, gardening, machine protection and other decorations.

Wire mesh (woven)

From sifting and screening machinery to conveyor and automotive belts, all the way to animal enclosures and architectural framework.

[ Wiki ] THE STRONGEST METALS

_____________    CONTACT US   _____________

Holly Zhang

E-mail: sales4@sunraysteel.com

Mob: 86-13417960037 / Tel: 86-0757-63999952

Skype: hollyzhang97

Facebook: https://www.facebook.com/zhang.holly.5

Address: 1507, A6, Hao Science Park, Guicheng, Nanhai District, Foshan, Guangdong, China.

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Strength is an important quality in the use of metals. This is especially true in construction, transportation, heavy industry and tool making. Metal alloys are often stronger than a metal in their pure form. In discussing the strongest metals, we should first consider what we mean by strength.

The different types of strength

There are a number of different measures of strength of a metal:

• Yield strength measures the lowest stress that will result in permanent deformation.
• Compressive strength measures the amount of squeezing stress that will cause defects.
• Tensile strength measures the amount of pulling stress that will cause defects.
• Impact strength measures the amount of impact energy that will cause a fracture.

The importance of the different types of strength depends on the intended use of the metal.

The strongest metals

There are a number of metals which can be considered “the strongest”. Of course, this depends greatly on the intended application of the metal. Another consideration is the various alloys that can be formed with each metal.

That said, four metals stand out as being the strongest: Steel, Titanium, Tungsten and Inconel.

Steel

Steel is an alloy of iron and carbon, often in combination with other elements. It is made by heating iron ore in furnaces where impurities are removed and carbon is added. Raw iron is ductile and weak, but the addition of other elements such as manganese, niobium, or vanadium gives steel strength and hardness. However, it is important to remember that these additional elements also impact other properties, such as toughness and ductility.

Steel is one of the most common materials of the modern world – with more than 1.3 billion tons of steel are produced every year. It is widely used in the transportation, infrastructure, building, and weapons industries. Most large modern buildings – including skyscrapers, airports and bridges – are held up by steel structures. In the automotive industry, steel is still the principal material, although aluminum is increasingly popular. Steel is also used in smaller items such as screws, nails and kitchen utensils.

There are many forms of steel alloys:

Stainless steel is a corrosion resistant alloy containing a minimum of 11% chromium.

Tool steels are alloyed with tungsten and cobalt and are notable for their hardness. Tool steel can retain a sharp cutting edge and is used in axes and drills.

Maraging steel is alloyed with nickel and other elements. It has a low carbon content and is extremely strong. Maraging steel is used in rocket and missile skins, gas centrifuges for uranium enrichment, and fencing blades.

Titanium

Titanium is a silvered colored metal with low density and high strength. It is notable for having the highest tensile strength-to-density ratio of any metallic element. However, it’s not as hard as some varieties of heat-treated steel.

Titanium is commonly alloyed with a range of elements including iron, aluminum, and vanadium. Titanium alloys are strong and lightweight making them ideal for automotive, aerospace, military and industrial applications. Two-thirds of all titanium metal produced is used for aircraft parts. Titanium is also highly resistant to seawater corrosion making it perfect for propeller shafts and rigging as well as divers’ knives.

Tungsten

Tungsten is a rare metal found on Earth in the form of chemical compounds. It has a metallic grey color, is brittle and hard to work. If refined to its purest form, it has a hardness that exceeds that of most steels. Of all the pure metals, tungsten has the highest melting point, lowest vapor pressure and highest tensile strength. It has the lowest coefficient of thermal expansion of any pure metal.

Tungsten’s toughness is greatly enhanced by alloying it with steel.

Around half of all tungsten is used for the production of hard materials, principally tungsten carbide. Tungsten carbide is used to make knives, drills, circular saws, and lathes. The metalworking, mining, construction, and petroleum industries rely heavily on tungsten carbide tools. Tungsten is also used to make alloys. The high melting point of tungsten makes it ideal for rocket and missile manufacture.

Inconel

Inconel is a type of superalloy made from austenite, nickel, and chromium. It is distinguished by its high strength which is not diminished at high temperatures. It’s also highly oxidation and corrosion resistant.

Inconel’s properties make it suitable for service in extreme environments. It’s commonly used in gas turbine blades, well pump motor shafts, chemical processing plants, and nuclear-pressurized water reactors.

[ Wiki ]CLASSES OF STAINLESS STEEL

_____________    CONTACT US   _____________

Holly Zhang

E-mail: sales4@sunraysteel.com

Mob: 86-13417960037 / Tel: 86-0757-63999952

Skype: hollyzhang97

Facebook: https://www.facebook.com/zhang.holly.5

Address: 1507, A6, Hao Science Park, Guicheng, Nanhai District, Foshan, Guangdong, China.

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What is Stainless Steel?

Stainless steel is a low carbon steel which contains chromium; it is this addition of chromium that gives plain steel its unique stain and corrosion resisting properties. The chromium in the steel allows the formation of a rough, invisible, corrosion resisting chromium oxide film on the steel surface. If the material is damaged either mechanically or chemically, the film heals itself (providing that oxygen is present). With the addition of chromium and other elements such as molybdenum, nickel and nitrogen, the steel takes on increased corrosion resistance and other properties.

The Classes of Stainless Steel

Stainless steels are generally grouped into 5 different classes. Each is identified by the alloying elements which affect their microstructure and for which each is named.

• Martensitic stainless steels
• Ferritic stainless steels
• Austenitic stainless steels
• Duplex (ferritic-austenitic) stainless steels
• Precipitation-Hardening (PH) stainless steels

Martensitic Stainless Steel

Martensitic Stainless grades are a group of stainless alloys made to be be corrosion resistant and harden-able (using heat treating). All martensitic grades are straightforward chromium steels without nickel. All of these grades are magnetic. Martensitic grades are mainly used where hardness, strength, and wear resistance are required.

Grade Types

• Type 410: A basic martensitic grade that contains lower alloy content. It has a relatively low cost, and it is a general purpose, heat treatable stainless steel. Typically used where corrosion is not too severe (such as air, water, some chemicals, and food acids.). Applications for this product can include parts needing a combination of strength and corrosion resistance, such as fasteners.
• Type 410S: Holds a lower carbon content than Type 410, but provides improved weldability with lower hardenability. This is a general purpose corrosion and heat resisting chromium steel.
• Type 414: This type has increased Nickel content (2%) for improved corrosion resistance. Typical applications include springs and cutlery.
• Type 416: The added Phosphorus and Sulphur in this type allow for improved machinability. Typical applications include screw machine parts.
• Type 420: Increased carbon in this type helps improve the mechanical properties. Typical applications include surgical instruments.
• Type 431: Has increased chromium content for greater corrosion resistance and good mechanical properties. Typical applications include high strength parts such as valves and pumps.
• Type 440: Further increases to the Chromium and Carbon content help improve toughness and corrosion resistance of this type. Typical applications include surgical instruments.

Ferritic stainless steel

Ferritic Stainless grades resist corrosion and oxidation, whilst remaining resistant to stress and cracking. Although these steels are magnetic, they cannot be hardened using heat treatment. Once annealed these grades can be cold worked. They have a higher corrosion resistance than martensitic grades, but are mostly inferior to the austenitic grades. These grades are straight Chromium steels with no Nickel, and are often used for decorative trim, sinks, and certain automotive applications such as exhaust systems.

• Type 430: A basic grade that has less corrosion resistance than Type 304. This type has a resistance to corrosives like nitric acid, sulfur gases, and many organic and food acids.
• Type 405: This type has a lower chromium content combined with added aluminum. This chemical makeup helps prevent hardening when cooled from high temperatures. Typical applications include heat exchangers.
• Type 409: One of the least expensive Stainless grades due to its decreased chromium content. This type should only be used for interior or exterior parts in non-critical corrosive environments. Typical applications include muffler stock.
• Type 434: This type has an increased Molybdenum content that gives it improved corrosion resistance. Typical applications can include automotive trim and fasteners.
• Type 436: This grade has columbium added for corrosion and heat resistance. Most typical applications include deep-drawn parts.
• Type 442: Has improved scaling resistance due to the increased Chromium content. Applications can include furnace and heater parts.
• Type 446: Even higher chromium content has been added to further improve corrosion and scaling resistance at high temperatures. This grade is very good with oxidation resistance in a sulfuric environment.

Austenitic Stainless Steel

Austenitic Stainless is the most commonly used stainless class. The high Chromium and Nickel content of the grades in this group provide superior corrosion resistance and very good mechanical properties. They cannot be hardened through heat treatment, but can be hardened considerably thru cold-working. None of the grades in this class are magnetic.

Standard Grades

The standard grades of austenitic stainless steel contain a maximum of .08% carbon; there is no minimum carbon requirement.

Low Carbon Grades (L Grades)

The “L” grades are used to provide extra corrosion resistance after welding. The letter “L” after a stainless steel grade number indicates low carbon. Carbon levels are kept to .03% or under to avoid carbide precipitation, which can lead to corrosion. Due to the temperatures created during the welding process (which can lead to carbon precipitation) – “L” grades are typically used. Quite commonly, Stainless mills offer these stainless grades as dual certified, such as 304/304L or 316/316L.

High Carbon Grades (H Grades)

Stainless “H” grades have a minimum of .04% carbon and a maximum of .10% carbon. The higher carbon helps retain strength at extreme temperatures. These grades are indicated by the letter “H” after the stainless grade number. The use of this designation would be when the end-use involves an extreme temperature environment.

• Type 304: One of the most commonly used (Austenitic) Stainless grades. Its high content of Chromium and Nickel make it a preferred choice when making processing equipment for the chemical (mild chemicals), food/dairy and beverage industries. This grade possesses an excellent combination of strength, corrosion resistance and fabric-ability.
• Type 316: This Stainless grade has 18% chromium, 14% Nickel and added Molybdenum; these in combination increase its resistance to corrosion. In particular, it is the molybdenum that is used which helps to control the pit type attack of corrosion. This grade will resist scaling at temperatures up to 1600 F. Type 316 is used in chemical processing, the pulp and paper industry, for food and beverage processing and dispensing and in the more corrosive environments. It is also used in the marine industry due to its resistance to corrosion.
• Type 317: Containing a higher percentage of molybdenum than 316, it is used in highly corrosive environments. The Molybdenum content of this grade must be greater than 3%. Commonly used in scrubber systems of air pollution control devices that are used to remove particulates and/or gases from industrial exhaust streams.
• Type 321: Contains a Titanium addition of at least five times the carbon content. This addition is made to reduce or eliminate chromium carbide precipitation – resulting from welding or exposure to high temperatures. Used in the Aerospace industry.
• Type 347: Has a slightly improved corrosion resistance over type 321 stainless steel in strongly oxidizing environments. Type 347 should be considered for applications requiring intermittent heating between 800ºF (427ºC) and 1650ºF (899ºC), or for welding under conditions which prevent a post-weld anneal.

Duplex (Ferritic-Austenitic) Stainless Steels

Duplex grades are a combination of austenitic and ferritic material. These grades are about twice as strong as the austenitic and ferritic grades. While they do have better toughness and ductility than the ferritic grades, they do not reach the levels of the austenitic grades. Duplex grades have a corrosion resistance very close to the austenitic grades such as 304 and 316. Grade 2205 is the most widely used in the duplex class.

• Type 2205: Duplex 2205 is ideally suited for high-pressure and highly corrosive environments. It also has high corrosion and erosion fatigue properties as well as lower thermal expansion and higher thermal conductivity than austenitic. The usage of this grade should be should be limited to temperatures below 315° C, as extended elevated temperature exposure can result in brittle material.
• Type 2304: Duplex 2304 is generally used in the same applications in which Alloys 304 and 316L are used. It has corrosion resistance very close or slightly better than austenitic grades 304 and 316, but it has nearly doubled yield strength. It is suited for use in temperatures between -50° and 300° C. This grade has a high mechanical strength and a high resistance to stress corrosion cracking. It has good weldability, machinability, and is easy to fabricate.
• Type 2507: Duplex 2507 is a super duplex stainless steel. It is in applications which require exceptional strength and corrosion resistance, such as chemical process, petrochemical, and seawater equipment. This grade has excellent resistance to chloride stress, corrosion cracking, high thermal conductivity, and a low coefficient of thermal expansion. The high chromium, molybdenum, and nitrogen levels provide excellent resistance to pitting, crevice, and general corrosion.

Precipitation-hardening (PH) stainless steels

Precipitation hardening stainless steel can be strengthened and hardened by heat treatment. This offers the designer a unique combination of fabric-ability, strength, ease of heat treatment, and corrosion resistance not found in any other class of material. These grades include 17Cr-4Ni (17-4PH) and 15Cr-5Ni (15-5PH).

• Type 17-4: Alloy 17-4 is a chromium-copper precipitation hardening stainless steel that is used for applications requiring high strength and a moderate level of corrosion resistance. It has high strength and good corrosion resistance in all heat treated conditions. This grade can be heat treated in a variety of temperatures; resulting in a wide range of finished properties. This grade should not be used in temperatures above 300° C or very low temperatures.
• Type 15-5: This is a variant of the older 17-4 chromium-nickel-copper precipitation hardening martensitic stainless steel. The 15-5 alloy was designed to have greater toughness than 17-4. It is used in applications requiring better corrosion resistance and transverse properties compared to other similar martensitic grades.

MAKE A STAINLESS STEEL KITCHEN BACK-SPLASH

_____________    CONTACT US   _____________

Holly Zhang

E-mail: sales4@sunraysteel.com

Mob: 86-13417960037 / Tel: 86-0757-63999952

Skype: hollyzhang97

Facebook: https://www.facebook.com/zhang.holly.5

Address: 1507, A6, Hao Science Park, Guicheng, Nanhai District, Foshan, Guangdong, China.

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We often get asked what type of Stainless Steel Sheet can be used as a kitchen back-splash.
Stainless Steel 304 is the recommended grade. It should have a #4 brushed finish. The finish of this grade looks very similar to the type used for stainless kitchen appliances. This material can be cut to the size that you need, and can be adhered to the wall using construction adhesive.

This material comes with one-side brushed (#4 grit finish). It will have a peelable protective plastic layer that can be removed once the item has been installed. The reverse side is a plain matte finish, which can be used as the gluing surface.

You must consider the direction that you wish the brushed direction to go, before ordering your sizes. Make sure that you provide those details to one of our stores doing the cutting (or place in the comments section if ordering online). The brushed grain can either go along your length or across your width of the piece(s) that you need. A typical instruction to the store might be: “please cut with brushed grain along the 12 inch length”.

Stainless steel sheet comes in many thicknesses, from 0.125” (1/8”) thick to 0.030” (1/32”) thick. While each project may have a particular thickness in mind, the most commonly used thicknesses are 0.030” or 0.036” Thick. Please keep in mind that the thicker material will cost and weigh more.

Installing Stainless Steel Back-Splash

1. Make sure that the wall is flat. Remove all build up and repair any large dents.
2. Test the placement of the sheet. Make a supporting cleat if the backsplash is not being supported by the counter top.
3. Lay the sheet with the finished (#4) side down on a flat surface.
4. Apply construction adhesive to the back side (using caulking gun), making sure that the lines of adhesive go back and forth across the entire sheet.
5. Make sure that you evenly spread the adhesive on the sheet, using a putty knife.
6. Place the stainless steel sheet against the wall with either the bottom resting against the cleat or the countertop. Once in place press the sheet against the wall.
7. Using a soft cloth, move from side to side of the sheet, pressing firmly to remove any air bubbles that could be behind the sheet.
8. Once the glue has dried and the project is complete, remove the protective layer.