• 4140 hard chrome plated rod

    Steel 4140 is AISI standard grade, it is a kind of alloy structural steel, equivalent to China standard GB 42CrMo.
    SAE 4140 alloy steel has high fatigue strength and low notch sensitivity, high low temperature impact toughness, no obvious temper brittleness, and is mainly used in the quenched and tempered state. It is used to manufacture high-strength parts and parts with large cross-sections and other stress-bearing components under impact load. Such as high strength Hydraulic cylinder rods, penaumatic cylinder rods, the transmission eccentric shaft of the horizontal forging machine, the crankshaft of the forging press, etc.


    4140 chrome plated rod is manufactured through SAE 4140 steel bar, by using high precision centerless grinding and polishing methods, and then chrome plated to a min. plating thickness of 20 microns (0.0008″), 25 microns (0.001″), or other. The chrome plating layer provides corrosion resistance and a highly reflective appearance.

    4140 chrome plated rods are used widely by the hydraulic industries and pneumatic industries, and is also widely usually used for applications where high yield strength and tensile strength is required.

  • Air Cylinder Tubing

    The common alloy No. of air cylinder tubing is 6063 and 6061. They are both great in formability, weldability, and corrosion resistance together with excellent appearance.

    Grand also capable of extruding other alloys no. for air cylinder tubing, for example, 7000 series, 5000 series, 3000 series, 2000 series, and 1000 series, consult our expert engineers to get more info regarding this extraordinary aluminum alloy no.

  • Air-conditioner Copper Tubes

    Copper tubes are easy to install, inexpensive to transport and have long life spans with low maintenance. Because they are compatible with a large range of liquids and are so resistant to a wide variety of environmental conditions, tubes made of copper provide a long term performance that is extremely cost effective over long periods of time. They form piping systems both above and below ground, in freezing temperatures as well as in high heat applications. Fire sprinkler systems, cryogenic plants, air conditioning and refrigeration systems, hospital oxygen systems, gas and steam heating systems and drain/vent systems all use copper tubes as pipes. They also take up less space than other metal pipes.

  • Aluminium Coil

    Aluminium coil is a rolled product, produced in a coiled form of a continuous strip, and has an inner diameter and outer diameter. ID from50mm to 1000mm. Aluminium alloy grade including 1xxx, 2xxx, 3xxx, 4xxx, 5xxx, 6xxx, 7xxx, 8xxx. But the most common is 1050, 3003, 6061 and 5251 aluminum coil. Thickness from 0.045-80mm, width from 60-2650mm. Common widths of aluminum coil is 800mm,1000mm, 1250mm,1450mm and 1500mm.

    Multiple industries rely on aluminium coils for a variety of applications, such as automotive, construction, heat transfer, pharmaceutical, electrical, and food industry. Compared to other materials, aluminum is a far superior material in many instances. Aluminum coil can be supplied with standard mill finish, or it can be brushed, checkered, color coated, satin-finished and anodized. Aluminium sheet or aluminium foil can be cut into coils as per client’s requirements.

  • Aluminium Fin Tube

    The aluminum fin material completely encloses the tube, except at the ends where a tube coating can be applied. Where atmospheric corrosion is present and when operated within design temperature limits, extruded finned tubes provide the most stable performance over time as compared to the other fin types. The fin is rolled from an outer aluminum tube by a process using pressure to create a rolled “pressure bond” between the liner tube and fins.

  • Aluminium foil

    Aluminium foil is aluminium prepared in thin metal leaves with a thickness of less than 0.2mm (7.9 mils); thinner gauges down to 4 micrometers are also commonly used. Standard household foil is typically 0.016 mm (0.63 mils) thick, and heavy-duty household foil is typically 0.024 mm (0.94 mils). And the air conditioner foil can be thinner than 0.0047mm, and some food foil thinner than 0.002mm. The foil is pliable and can be readily bent or wrapped around objects. Thin foils are fragile and are sometimes laminated with other materials such as plastics or paper to make them stronger and more useful. It’s used industrially for a variety of purposes, including packing, insulation and transportation. At home, people use aluminum foil for food storage, to cover baking surfaces and to wrap foods, such as meats, to prevent them from losing moisture while cooking.

  • Aluminium Strip

    Aluminum sheet & foil in the form of rolls with a thickness > 0.2mm, a width 20mm to 100mm is generally called aluminium strip. The common name for aluminium strip that is produced in small strip widths is usually split strip. Aluminium sheets are cut into a required by slitting tooling, the raw material of aluminum strip is pure aluminium or aluminum alloy hot rolled cast-rolling aluminum coil and hot-rolled coil. Through a cold-rolled machine to form different thickness and width of the rolling sheet and aluminum coil, and then the vertical cutting and slitting machine for different width of the strip. And the thickness<0.2mm, we call it aluminum foil strip or aluminum foil coil.

  • API5L/A106B Seamless Steel Tubes

  • ASTM B338 Gr2 Seamless Titanium Tube

    Titanium tubing are delivered in straight lengths or as U-bent tubing. Titanium spiral tubing, titanium capillary tubing are available by requirement. All the Titanium Tubing offered by us will pass strict test process.


    Low density, High specific strength, Excellent corrosive resistance, No Rust, Good thermal stability, Good thermal conductivity, Biological features, Plasticity, etc.


    Industry field, aerospace, architectural, automotive, biomedical, chemical processing, marine, military, oil, tooling, racing.Heat exchangers and condensers,All kinds of corrosive fluid transmission pipeline system,Titanium bicycle tube, automobile exhaust pipe,Offshore aquacultur

  • Brass Bar

  • Brass Coil

    Brass coil has excellent plasticity (best in brass) and high strength, good machinability, easy to weld, very stable to general corrosion, but prone to corrosion cracking; brass coil is copper and the alloy of zinc is named for its yellow color.

    The mechanical properties and wear resistance of the brass coil are very good, and can be used to manufacture precision instruments, ship parts, shells of guns, etc. Brass knocks up and sounds good, so instruments such as cymbals, cymbals, bells, and numbers are made of brass. According to the chemical composition, brass is divided into ordinary copper and special brass.

  • Brass Sheet

    Brass Sheet based on electrolytic copper, zinc and trace elements as its raw material, through processing by ingot, hot rolling, cold rolling, heat treatment, surface cleaning, cutting, finishing, and then packing. Material processes performance, plasticity, mechanical properties, corrosion resistance, performance and good tin.

    It has been widely used in electrical, automotive, communications, hardware, decoration and other industries.

  • CK45 Chrome Plated Bar

  • Coiled Copper Fin Tube

    Copper fin coils are also special coils that Grand provide. These coils don’t have a bi-metallic bond usually found on standard coils and have a copper wavy fin pattern bonded to the copper tubes.

    These coils are very reliable heat exchangers as they are required and can operate for air conditioners in harsh coastal areas and other highly corrosive surroundings because the coils have higher coastal corrosion durability. The coils match this type of environment because the bi-metallic construction is not present, and copper has a natural protective film and a mono-metal bond attaching the tube and fin. They have superb thermal conductivity, resistance and strength compared to aluminium.

  • Copper Alloy U Bend Tube

    Copper and Cu alloy U bending tube is carried out by cold working method and is being done to the necessary bend radius as per client drawings. U-bend tube/pipe can be manufactured from an extensive range of pipe materials that contain high and low yield stainless steels, alloy steels, carbon steels,Monel , Inconel, hastelloy,duplex , super duplex,titanium,copper alloy and Cr-Ni alloys. Usually U-bends manufactured from seamless tube, can further be customized in terms of thicknesses and sizes as per the specific requirements of our clients. They are easy for further assemble tube bundles.

    Grand provides U bend Tubes pipe in diverse industries for a range of applications such as in Boiler, Condensers, Evaporators,tube bundles for Heat Exchangers, Coolers/Inter-coolers, Chiller, and so on. These are as well being used in dissimilar industries such as in Fertilizer Plants, Sugar Industry, Steel Plants,Oil & Gas plants, Chemical & Petrochemical plants, Refineries, Power plants, Renewable energy plants etc.

  • Copper Coils

    It may seem that a copper coil is a simple piece of coiled wire that can be wound and put to use. As with any form of industrial product, copper coils have to be precisely engineered to fit an application. The winding process has to be completed with precision to ensure the proper distance between the wires and the diameter of the opening.

    Each product that uses copper coils requires that a certain number of turns be made to provide the correct amount of resistance. Inaccurate calculations can lead to inefficiency and possible failure of the coil or device. For this reason, the engineers at Metal Associates guarantee that they have closely examined the specification of an application such that the diameter, spacing, wire thickness, and number of turns exactly matches the design of the product where the copper coil will be used.

  • Copper Fin Tube

    Copper is a metal element, and pure copper is a soft metal. The surface is reddish orange with metallic luster when it is just cut open, and its simple substance is purple-red. Good ductility, high thermal conductivity and electrical conductivity, so it is the most commonly used material in cables and electrical and electronic components.

    It can also be used as a building material and can be composed of many alloys. Copper alloys have excellent mechanical properties and low electrical resistivity. The most important ones are bronze and brass. In addition, copper is also a durable metal that can be recycled multiple times without compromising its mechanical properties.

    Copper pipes (also known as red copper pipes) are commonly used in tap water pipes, heating and cooling pipes, and can be used in different environments. Copper pipes combine the advantages of metal and non-metal pipes in cold and hot water systems. Copper pipes are resistant to high temperatures and can be used in a variety of environments. Compared with this, the shortcomings of many other pipe materials are obvious.

  • Copper Foil

    Copper is a reddish brown metallic element with outstanding characteristics such as good ductility, ductility, heat and conductivity

    Pure copper is a very soft and ductile metal To achieve the required performance, we can alloy with other metals Brass and bronze are widely used copper alloys

    Copper foil is made of copper or copper alloy by hot rolling and cold rolling The thickness of copper foil ranges from 0.03mm to 0.2mm, and the width and length can be customized according to customer requirements

  • Copper Rod

    Copper bar is a kind of non-ferrous metal processing bar, which has better processing performance and high conductivity. It is mainly divided into brass rod (copper zinc alloy, cheaper), purple copper rod (higher copper content).

    Brass rod is a rod shaped object made of copper and zinc alloy, named for its yellow color. The melting point of brass, which contains 56% to 68% copper, is 934 to 967 degrees. Brass has good mechanical properties and wear resistance, and can be used to manufacture precision instruments, ship parts, gun casings and so on. Used in air conditioning pipe, refrigerator pipe, oil pipe, water supply pipe and all kinds of mechanical materials, automotive synchronizer gear ring, Marine pump, valve, structural parts, friction accessories, etc.

    Purple copper rod is named for its purple red color. It has good electric conductivity, heat conduction, corrosion resistance and processing properties. It can be welded and brazed. Characteristics: high purity, fine structure, low oxygen content. No porosity, trachoma, loose, excellent electrical conductivity, high precision of electroetching mold surface, after heat treatment process, no direction of the electrode, suitable for fine play, fine play, with good thermoelectric channel, processability, ductility, corrosion resistance and weather resistance.

  • Copper Sheet

    Copper sheet is a very workable and malleable form of metal, high in electrical and thermal conductivity, and provides excellent corrosion resistance. A beautiful and versatile metal, copper has been utilized for thousands of years. Historically, it served as a favorite choice in making tools, vessels, and sculptures. Copper is also known for its beautiful patinas. When exposed, unsealed, to an outdoor environment, copper begins to oxidize. This exposure creates beautiful color variations in the form of a patina. The coloring of the patina will change and develop character over time while serving to protect the metal from deterioration. People will also create a patina quickly with the use of chemical mixtures that speed the process up and allow a patina to develop without outdoor exposure. Copper sheets can also be hammered, tooled, or embossed for added texture and decorative or functional appeal and come in many thicknesses from very thin copper foil to thick copper plate. It also comes in many alloys that blend other metals with copper. At Grand Copper, we sell pure copper -C110 (other alloys and tempers available upon request). This high purity provides the premium quality needed for projects and applications in a wide range of industries and uses. We take pride in providing the best material. Our high-quality, affordable material and friendly, first-rate customer service have made us a leader in the industry for over a decade.

  • Copper Strips

    Copper strips have high electrical and thermal conductivity, that’s why copper strips are the best for transformer winding.

    What’s more, copper strips transfer heat more effectively than other metals strips.

    Copper strips are more malleable and have high tensile strength. Corrosion resistance, high degree stability, and heat dissipation of copper strips are superior to other metals.

    Copper strips are mostly used in the electrical and electronics sectors because copper is non-magnetic and non-sparking. Copper strips are mostly used in heat exchangers, transformers winding, condensers, and lightning conductors.

    Copper strip thickness range from 0.03mm to 3.0mm. Copper strips can be manufactured in different widths and thicknesses per the customer’s requirement.

  • EN10216-1/DIN1629 Seamless Steel Tubes

  • EN10297-1 Seamless Steel Tubes

  • Extruded Aluminum Tube

    What I’m sure of is that at some point in time, you ought to have seen or come across this particular material, whether knowingly or unknowingly.

    Well, an extruded aluminum tube primarily refers to the type of aluminum profile made from extrusion process to produce desired sectional shape and size.

    In other simple words, it refers to an aluminum tube formed by forcing it to flow through a tube-shaped opening die.

    And at the end of the process, it emerges as an elongated piece with a similar profile as the die opening.

    In many instances, you’ll find that many manufacturers tend to produce different types of extruded aluminum tubes.

    Of course, the essence, in this case, is for making sure that they are suitable for each application.

    But we shall look at this aspect later in on in this guide, so do not worry!

    In the meantime, let’s find out some of the major properties that make extruded aluminum tube one of the best material for different applications.