316 Stainless Steel Welded Tube Supplier
- Size Range: From 4mm4mm to 800mm800mm
- Wall Thickness Range: From 1mm to 150mm (SCH10-XXS)
- Length Options: 4000mm, 5800mm, 6000mm, 12000mm, or as required.
- Finish: 2B, BA,4K,8K, NO.1,2D,3#, HL
- Type: Round, square, rectangular, hexagonal, flat, angle
- Technique: Cold rolled hot rolled
Product Description of 316 Stainless Steel Welded Tube
316 stainless steel welded tube is known for its excellent corrosion resistance and oxidation resistance. It is an acid, alkali and salt corrosion resistant tubing for use in a variety of harsh environments. This makes it the preferred choice for industries such as chemical, oil, gas and food processing.
Our 316 stainless steel welded tube is made of high quality 316 stainless steel material, which provides excellent strength and durability. It undergoes a precision welding process to ensure quality connections and reliability of the pipe. The tube’s flat surface and precise dimensional control make it easy to install and use.
With our stainless steel welded tube, you can handle high temperature and high pressure working environments with confidence. Its excellent heat transfer properties ensure that the pipe remains stable under high temperature conditions and has excellent heat and pressure resistance. This makes it widely used in industries such as petroleum, chemical and pharmaceutical.
As professional stainless steel tube suppliers, we are committed to providing quality products and excellent customer service. Our 316 stainless steel welded tube can be customized in size and length to meet your specific project requirements. We are committed to providing competitive pricing and on-time delivery to meet your business needs.
Specification of 316 Stainless Steel Welded Tube
Chemical Components of 316 Stainless Steel Welded Tube
| 316 | C% | Si% | Mn% | P% | S% | Ni% | Cr% | Mo% |
| ASTM A240/A240M | ≤ 0.08 | ≤ 1.00 | ≤ 2.00 | ≤ 0.045 | ≤ 0.030 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 |
| EN 10028-7 | ≤ 0.08 | ≤ 1.00 | ≤ 2.00 | ≤ 0.045 | ≤ 0.030 | 10.0-14.0 | 16.0-18.0 | 2.0-2.5 |
| JIS G4304 | ≤ 0.08 | ≤ 1.00 | ≤ 2.00 | ≤ 0.045 | ≤ 0.030 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 |
| GB/T 4237 | ≤ 0.08 | ≤ 1.00 | ≤ 2.00 | ≤ 0.045 | ≤ 0.030 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 |
Mechanical Properties of 316 Stainless Steel Welded Tube
| 316 | T.S.(MPa） | Y.S.(MPa） | EL.(%) | HB | HRB | HBW |
| ASTM | ≥ 515 | ≥ 205 | ≥ 40 | ≤ 217 | ≤ 95 | – |
| JIS | ≥ 520 | ≥ 205 | ≥ 40 | ≤ 187 | ≤ 90 | – |
| EN | ≥ 500 | ≥ 205 | ≥ 40 | ≤ 187 | ≤ 90 | ≤ 200 |
| GB | ≥ 520 | ≥ 205 | ≥ 40 | ≤ 187 | ≤ 90 | – |
Physical Properties of 316 Stainless Steel Welded Tube
| 316 | Density (g/cm³) | Melting point (℃) | Thermal conductivity (W/m-K) | Coefficient of thermal expansion (10^-6/K) | Resistivity (μΩ-cm) | Magnetic permeability (H/m) |
| ASTM | 8.0 | 1375 | 16.2 | 16.5 | 72 | 1.02 |
| JIS | 8.0 | 1375 | 16.3 | 16.5 | 72 | 1.02 |
| EN | 8.0 | 1375 | 16.3 | 16.5 | 72 | 1.02 |
| GB | 8.0 | 1370 | 16.3 | 16.5 | 72 | 1.02 |
Features of 316 Stainless Steel Welded Tube
- Resistance to General Corrosion: 316 stainless steel welded tube exhibits excellent corrosion resistance in most common corrosive media, including oxidizing acids, organic acids and alkaline solutions.
- Resistant to Chloride Corrosion: 316 stainless steel welded tube is very resistant to chloride ions and therefore has excellent corrosion resistance in seawater, brine and chloride environments.
- Stable Corrosion Resistance: Compared with other stainless steel materials, 316 stainless steel welded tube has more stable corrosion resistance under high temperature and high pressure conditions, and is less prone to stress corrosion cracking and intergranular corrosion.
- Stop Oxidation: 316 stainless steel welded tube contains a certain percentage of molybdenum, which can effectively inhibit oxidation reactions and reduce the generation of oxidation products on the metal surface, thus extending the service life of the tube.
- Resist Pitting and Hole Corrosion: Due to its low carbon content and high molybdenum content, 316 stainless steel welded tube has significantly higher resistance to pitting and hole corrosion, which is suitable for some working conditions with etching media.
- Tensile Strength: 316 stainless steel welded tube has a high tensile strength, usually above 520 MPa (MPa), which allows it to exhibit good mechanical properties when subjected to tension or strain.
- Yield Strength: 316 stainless steel welded tube has a yield strength usually above 205 MPa, which means that the tube can maintain its shape and structural stability when subjected to external forces.
- Tensile Resistance: 316 stainless steel welded tube has good tensile resistance, able to maintain a certain degree of ductility when stretched by external forces to avoid fracture or deformation.
- Compressive Strength: 316 stainless steel welded tube is excellent in compressive strength, able to withstand the pressure of high-pressure environment to ensure the stability and safety of the pipe.
- Fatigue Resistance: 316 stainless steel welded tube has excellent fatigue resistance, able to maintain structural integrity and stability under long-term cyclic stress.
- Tensile Strength: 316 stainless steel welded tube has an excellent tensile strength, typically above 520 MPa (MPa). This means that the welded pipe can withstand high tensile or tension loads, maintaining its structural stability and strength.
- Yield Strength: 316 stainless steel welded tube has a yield strength of typically above 205 MPa. Yield strength is the ability of welded pipe to begin to deform plastically when subjected to stress. A higher yield strength means that the welded pipe can maintain its shape and structural stability when subjected to load.
- Ductility: 316 stainless steel welded tube has good ductility, which is usually expressed as a high elongation. This means that the welded pipe can undergo plastic deformation when subjected to tensile forces without immediate fracture, thus increasing its plasticity and adaptability in engineering applications.
- Impact Toughness: 316 stainless steel welded tube has excellent impact toughness, able to absorb energy and maintain integrity when subjected to impact or heavy pressure loading. This characteristic makes it excellent for applications in harsh operating conditions, such as low temperature environments or under vibration loading.
- Hardness: 316 stainless steel welded tube typically has a moderate hardness that can be adjusted by heat treatment or cold working to meet specific engineering requirements.
Heat Treatment Capability: 316 stainless steel welded tube can achieve excellent performance improvement under proper heat treatment conditions. By controlling the heating temperature and cooling rate, the organization and properties of the welded pipe can be adjusted to meet specific engineering requirements.
Creep Resistance: 316 stainless steel welded tube has excellent creep resistance at high temperatures. Creep is the plastic deformation of the material under long-term high temperature and continuous stress, and 316 stainless steel welded tube can resist creep deformation and maintain the stability of its shape and structure.
- High Melting Point: 316 stainless steel welded tube has a high melting point of about 1370-1400 degrees Celsius, enabling it to maintain structural stability and mechanical properties in high temperature environments.
- Low Thermal Conductivity: 316 stainless steel welded tube has a low thermal conductivity, which can effectively reduce the conduction and dissipation of heat, enabling it to maintain a low surface temperature in a high temperature environment.
- Thermal Shock Resistance: 316 stainless steel welded tube has excellent thermal shock resistance and can withstand thermal stress caused by thermal expansion and cold shrinkage in high temperature environments, avoiding problems such as thermal cracking and deformation of the welded tube.
Application of 316 Stainless Steel Welded Tube
oil and gas industry
316 stainless steel welded tube is widely used in wellhead casing, oil well piping and water drive systems in the oil and gas extraction process. Its corrosion resistance is able to withstand acidic and alkaline media, while having excellent pressure resistance, ensuring the safety and reliability of the extraction process. In the oil and gas transmission phase, 316 stainless steel welded tube is used to build pipeline systems. These pipes are subjected to high pressures and long distances, and the high strength and pressure resistance of 316 stainless steel welded tube allows it to meet the challenges. In oil and gas storage, 316 stainless steel welded tube is widely used in tanks, reservoirs and gas storage facilities. Working with Huaxiao stainless steel tube suppliers, you will get reliable 316 stainless steel welded tube solutions to meet your needs in the oil and gas industry.
chemical industry
In the chemical industry, many corrosive media and high temperature environments are involved, so the material needs to have good corrosion resistance. 316 stainless steel welded tube has such characteristics to resist the corrosion of acidic, alkaline and salt media, thus ensuring the long-term stable operation of chemical industry equipment and pipelines. In addition, 316 stainless steel welded tubes also have good pressure resistance and excellent mechanical properties, making them able to withstand the requirements of high pressure, high temperature and complex working conditions in the chemical industry. They are widely used in chemical equipment, petrochemical plants, storage tanks, piping systems and other key components, ensuring the safety and reliability of chemical processes. As professional stainless steel tube suppliers, we are committed to providing high quality 316 stainless steel welded tube products for the chemical industry.
medical equipment processing industry
316 stainless steel welded tube has excellent corrosion resistance to resist the corrosive effects of contact with body fluids, drugs and chemicals, ensuring the long-term reliable operation of medical equipment. Its high purity and low carbon content make it non-toxic and non-hazardous for medical applications, meeting strict sanitary standards. In addition, 316 stainless steel welded tube has excellent biocompatibility with human tissue and will not cause allergic or rejection reactions. This makes it useful for a wide range of applications in medical device manufacturing, including artificial joints, surgical instruments, cardiac stents, catheters and implants. Its high strength and wear resistance enable it to withstand the loads and pressures required by medical devices, ensuring stability and reliability of the equipment. As stainless steel tube suppliers, we are committed to providing high quality 316 stainless steel welded tube products to medical device manufacturers.
marine engineering industry
In ship construction, 316 stainless steel welded tube is often used in the manufacture of hull structures, piping systems and ship fittings. As ships are exposed to seawater corrosion and chloride ions in the marine environment, the excellent corrosion resistance of 316 stainless steel welded tube makes it an ideal choice. It is able to resist seawater corrosion, prevent rusting and increase the life of the ship's hull. It is also able to withstand the vibration, shock and high temperature environment of the ship, ensuring the structural strength and stability of the ship. In the field of marine engineering, 316 stainless steel welded tube is often used in the construction and maintenance of important facilities such as offshore oil fields, marine platforms and subsea pipeline systems. It can resist corrosion in seawater, erosion in high-temperature and high-pressure environments, and the adhesion of marine organisms, ensuring the long-term operation and safety of the facilities. As professional stainless steel tube suppliers, we provide high quality 316 stainless steel welded pipe products in accordance with international standards such as ASTM, JIS, EN and GB.
food processing industry
In food processing and food safety, 316 stainless steel welded tube has excellent corrosion resistance and can resist corrosive substances such as acids, alkalis and salts in food, ensuring the quality and hygienic safety of food. In addition, 316 stainless steel welded tube is non-toxic, tasteless and non-polluting, which will not have any adverse effects on food and meets food hygiene standards and requirements. In the process of food processing and conveying, 316 stainless steel welded tube is widely used in key parts of food handling equipment, piping systems and conveying systems. They can be used to convey all kinds of food liquids, gases and solids, including beverages, dairy products, juices, condiments, edible oils, syrups, beer, etc. Due to their good sealing performance and pressure resistance, 316 stainless steel welded tube can withstand high pressure and high temperature working conditions to ensure the safety and reliability of food products during processing and conveying. We will be your reliable partner in the food industry and provide you with high quality 316 stainless steel welded tube to meet your needs.
FAQ
Chemical Composition: 316 stainless steel tube contains a higher molybdenum (Mo) and nickel (Ni) content, while 304 stainless steel tube has a lower molybdenum content. This makes 316 stainless steel have better corrosion resistance, especially in corrosive media such as salt water or acidic environments.
Corrosion Resistance: Due to the presence of molybdenum in 316 stainless steel tube, it has better corrosion resistance, especially in chloride environments. Therefore, 316 stainless steel welded tube is more suitable for use in marine environments and chemical industries, while 304 stainless steel welded tube is more suitable for general use.
Temperature Range: 316 stainless steel welded tube has better high temperature tolerance and can withstand higher temperatures, while 304 stainless steel welded tube may have limited performance at high temperatures.
Chemical Composition: 316 stainless steel welded tube contains a high molybdenum (Mo) and nickel (Ni) content, while 316L stainless steel welded tube has a lower carbon content. 316L stainless steel welded tube improves the corrosion resistance of welded joints by reducing the carbon content, thereby reducing the precipitation of carbides produced during the welding process.
Corrosion Resistance: Due to the low carbon content in 316L stainless steel welded tube, it has better corrosion resistance, especially around the weld area. It is more suitable than 316 stainless steel welded tube for use in corrosive media, such as salt water or acidic environments.
Welding Properties: 316L stainless steel welded tube has better welding properties due to its low carbon content. It has a lower tendency for carbide precipitation, reducing the risk of corrosion and intergranular corrosion in welded joints.
316 stainless steel welded tube is normally non-magnetic, but in some cases may exhibit a slight magnetic property. 316 stainless steel is an austenitic stainless steel with a crystal structure containing iron, chromium, nickel and other alloying elements. Normally, normal 316 stainless steel welded tube is non-magnetic at room temperature due to the chromium and nickel elements in its structure.
However, when 316 stainless steel welded tube is subjected to processes such as cold working or welding, this may result in the formation of a magnetic phase in the crystal structure, causing it to exhibit a weak magnetic properties. This magnetism is caused by some changes or residual stresses in the crystal structure and has no direct effect on its corrosion resistance.
The surface treatment and polishing methods of 316 stainless steel welded pipe can be used as follows:
Pickling: By using acidic solutions (such as sulfuric acid, and hydrochloric acid) to pickle the surface of the welded pipe, oxides, weld slag and other contaminants can be removed and the bright surface of stainless steel can be restored.
Mechanical Polishing: Mechanical polishing of the welded pipe surface using mechanical means (such as grinding and polishing machines) to remove surface imperfections, sand eyes and depressions to make the surface smoother and more uniform.
Electrolytic Polishing: By immersing the welded pipe into the electrolytic solution, tiny pits on the surface of stainless steel are filled by the action of electric current to improve the surface finish and brightness.
Plating Treatment: Using electrochemical methods, a thin film is formed on the surface of the welded pipe, such as chrome plating, nickel plating, etc., to increase its corrosion resistance and aesthetics.
Sandblasting Treatment: Use high-pressure sandblasting equipment to spray fine particles of abrasive onto the surface of the welded pipe to remove oxides, rust and dirt to make its surface smoother.
Chemical Treatment: Chemical solutions are used to treat the surface of the welded pipe, such as pickling, alkaline washing and cleaning agents, to remove contaminants and improve the surface quality.
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