hot dipped galvanized pipe with thread and coupling
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O.D | O.D tolerance | W.T | Thickness Tolerance |
1/2-12'' | ±0.3mm | 1.5-12 MM | ±8% |
Length | 3m,4m,5.8m,6m or according customers' requirements | ||
Certificate | ISO9001-2008,EN10210,API,Raw material cert,Mill cert,Reap on site inspection report,SGS,BV | ||
Standard | ASTM A53/ASTM A36 BS1387/BS1139/EN39/EN10219/EN10217/EN10297/EN10296/EN10025 etc | ||
Material | Q195/215/235/345, SS330/400/500, S235JR/S235JQ/S235J2, etc | ||
Inspection | With Hydraulic Testing, Eddy Current , Infrared Test, etc | ||
Technique: | Welded Hot rolled,heat extrusion | ||
Packing | in bundle or in bulk, PVC in blue or in strip | ||
Usage | For construction, Pluid and Greenhouse | ||
Main market: | Middle east,North and South America, East and West Europe, South and southeast Asia,Australia,Africa, | ||
Place of Origin | China | ||
HS code: | 73063090 | ||
Productivity | 2000Ton/Month | ||
Processing | galvanzied,inner and outer stab clean,bevelled oiled,painted black threading,with coupling and plastic caps protected packing in plastic cloths,3PE,FBE,corrosion resistant coating | ||
- Q:How are steel pipes protected against rust?
- Steel pipes are protected against rust through a variety of methods. One common method is by applying a protective coating to the pipes. This can be done by using a layer of paint, epoxy, or a corrosion-resistant coating such as zinc or galvanized coatings. These coatings act as a barrier between the steel and moisture, preventing the formation of rust. Another method of protecting steel pipes against rust is by using cathodic protection. This involves the use of sacrificial anodes, typically made of zinc or magnesium, which are attached to the steel pipes. These anodes corrode instead of the steel, sacrificing themselves and preventing rust formation on the pipes. In addition to coatings and cathodic protection, steel pipes can also be protected against rust by using corrosion inhibitors. Corrosion inhibitors are chemicals that are added to the water or fluid flowing through the pipes. These chemicals form a protective film on the surface of the steel, inhibiting the corrosion process and preventing rust from forming. Regular maintenance and inspections are also crucial in protecting steel pipes against rust. Any signs of damage or wear on the protective coatings should be addressed promptly to prevent rust from developing. Additionally, ensuring that the pipes are properly cleaned and dried before applying any protective coatings can also help in enhancing their effectiveness. Overall, a combination of protective coatings, cathodic protection, corrosion inhibitors, and regular maintenance is employed to ensure that steel pipes are effectively protected against rust and corrosion, prolonging their lifespan and maintaining their structural integrity.
- Q:What are the different types of steel pipe joints?
- There are several different types of steel pipe joints, including threaded, welded, flanged, grooved, and compression joints.
- Q:How are steel pipes used in oil refineries?
- Steel pipes are extensively used in oil refineries for various purposes such as transporting crude oil, refined products, and gases throughout the facility. They are used in the construction of pipelines, process equipment, and storage tanks, providing a reliable and durable solution for handling the vast quantities of liquids and gases involved in the refining process.
- Q:What's the difference between the fastener type steel pipe scaffold, the floor type steel pipe scaffold and the overhanging type steel pipe scaffold?
- Butt fastener: used for connecting two steel pipe joints.The base and the pad: is set up in the bottom of the pedestal pole, pay attention to the distinction between base and the base plate, usually with steel plate and welded steel pipe, base usually put on a backing plate, and the plate can be wood can also be plate.The foot board (see the diagram below), safety net (no explanation, this is very simple).
- Q:What are the different methods of pipe joining using steel pipes?
- There are several methods of pipe joining using steel pipes, each with its own advantages and disadvantages. 1. Threaded and coupled: This method involves threading the ends of the steel pipes and using couplings to connect them. It is a simple and cost-effective method, but it is not suitable for high-pressure or gas applications. 2. Welding: Welding is a popular method for joining steel pipes. It involves heating the ends of the pipes and fusing them together using a welding process. This method creates a strong and leak-proof joint, but it requires skilled labor and can be time-consuming. 3. Grooved: In this method, the ends of the steel pipes are grooved and then connected using mechanical couplings or fittings. It is a quick and reliable method, suitable for both high-pressure and low-pressure applications. However, it requires specialized tools and equipment. 4. Flanged: Flanged joints involve connecting steel pipes using flanges, which are flat discs with bolt holes. The pipes are aligned and bolted together using gaskets to create a secure connection. This method is commonly used for large-diameter pipes and high-pressure applications, but it can be expensive and time-consuming to install. 5. Compression: Compression fittings are used to join steel pipes by compressing a ferrule or sleeve against the pipe. This method is quick, easy, and requires no special tools. However, it is not suitable for high-pressure or high-temperature applications. 6. Brazing: Brazing involves heating the ends of the steel pipes and melting a filler material between them to form a joint. It is a reliable method for joining pipes in HVAC and refrigeration systems, but it requires skilled labor and careful temperature control. It is important to consider the specific requirements of the application, such as pressure, temperature, and material compatibility, when selecting the appropriate method of pipe joining using steel pipes.
- Q:Can steel pipes be used for structural supports?
- Yes, steel pipes can be used as structural supports due to their high strength, durability, and ability to withstand heavy loads. They are commonly used in construction for applications such as columns, beams, and braces, providing stability and support to various structures.
- Q:How are steel pipes tested for quality assurance?
- Steel pipes are tested for quality assurance through various methods such as hydrostatic testing, non-destructive testing (NDT) techniques like ultrasonic testing, magnetic particle testing, and visual inspection. These tests ensure that the pipes meet the required standards and specifications, checking for flaws, defects, and proper dimensional accuracy.
- Q:What are the different pipe fittings used with steel pipes?
- Some of the different pipe fittings used with steel pipes include elbows, tees, couplings, unions, reducers, flanges, and caps.
- Q:How are steel pipes graded?
- Steel pipes are graded based on several factors to determine their quality and suitability for specific applications. The grading system for steel pipes typically includes parameters such as the chemical composition, mechanical properties, manufacturing method, and testing standards. 1. Chemical composition: Steel pipes are graded based on the elements present in their composition. This includes the amount of carbon, manganese, phosphorus, sulfur, and other alloying elements. The chemical composition greatly influences the pipe's strength, corrosion resistance, and other properties. 2. Mechanical properties: The mechanical properties of steel pipes are crucial for determining their strength, flexibility, and resistance to pressure and temperature. These properties include tensile strength, yield strength, elongation, hardness, and impact toughness. Pipes with higher mechanical properties are generally graded higher. 3. Manufacturing method: Steel pipes can be manufactured using various methods, such as seamless, welded, or ERW (Electric Resistance Welding). The manufacturing method affects the pipe's integrity, dimensional accuracy, and overall quality. Seamless pipes, for example, are considered to have higher quality due to their uniformity and absence of weld seams. 4. Testing standards: Steel pipes are graded based on their adherence to specific testing standards. These standards ensure that the pipes meet the required quality criteria and are suitable for their intended applications. Common testing standards include ASTM (American Society for Testing and Materials), API (American Petroleum Institute), and EN (European Norms). Based on these factors, steel pipes are often graded using alphanumeric codes or specifications. For instance, pipes used in oil and gas industry may be graded as API 5L (American Petroleum Institute) or pipes used for structural purposes may be graded as ASTM A500 (American Society for Testing and Materials). In conclusion, steel pipes are graded based on their chemical composition, mechanical properties, manufacturing method, and adherence to testing standards. These grades help customers and manufacturers in selecting the appropriate pipes for specific applications, ensuring safety, durability, and efficiency in various industries.
- Q:45 and 316 which steel tubes are of high hardness?
- 316 stainless steel by adding Mo element, the corrosion resistance, and high temperature strength has greatly improved, high temperature can reach 1200-1300 degrees, can be used in severe conditions. 316F stainless steel is easy to cut stainless steel with high sulfur content. Good corrosion resistance, easy processing, good smoothness, suitable for axial parts.
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hot dipped galvanized pipe with thread and coupling
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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