JIS G3461(Carbon Steel Tubes For Boiler And Heat Exchanger)
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50mt m.t.
- Supply Capability:
- 5000 Tons Per Month m.t./month
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Specifications of JIS G 3461 / JISG3461 seamless steel pipes
Scope of JIS G 3461 / JISG3461 seamless steel pipes This Japanese Industrial Standard specifies the carbon steel tubes, hereinafter refered to as the "tubes", used for excahnging heat on the inside and outside of the tube, such as water tubes, smoke tubes, superheater tubes, air preheater tubes, etc. of the boiler, ater tubes, etc. of the boiler, and heat exchanger tubes, condenser tubes, catalyser tubes, etc. used in chemical and petroleum inudstries. however, it is not applicable to the steel tubes for heating furnace and steel heat exchager tubes for bes for low temperature service. |
Classes and Symbols of JIS G 3461 / JISG3461 seamless steel pipes
The tube shall be classified into 3 grades and their class symbols shall be
as given in Table 1
Chemical Composition
(Applicable till the end of 1990)
Grade | Mfg. Process | Chemical composition(%) | ||||
C | Si | Mn | PP | |||
STB35 | S, E | 0.18Max | 0.35Max | 0.30~0.60 | 0.035Max | 0.035Max |
STB42 | S, E | 0.32Max | 0.35Max | 0.30~0.60 | 0.035Max&l"center">0.035Max | 0.035Max |
STB52 | S, E | 0.25Max | 0.35Max | 1.00~1.50 | 0.035Max | 0.035Max |
Packing of JIS G 3461 / JISG3461 seamless steel pipes
Each bundles pipes will be bundle with 8 pcs steel strips, nesting package.
- Q:What are the quality control measures for steel pipe manufacturing?
- The quality control measures for steel pipe manufacturing typically include various stages of inspection and testing, starting from raw material evaluation to the final product. These measures may include checking the chemical composition and mechanical properties of the steel, conducting non-destructive testing such as ultrasonic or magnetic particle inspection, monitoring the dimensions and surface finish of the pipes, and ensuring compliance with relevant industry standards and specifications. Additionally, quality control measures may involve regular maintenance and calibration of equipment, rigorous documentation and traceability of processes, and continuous monitoring and improvement of manufacturing techniques to meet the desired quality standards.
- Q:How are steel pipes used in the construction of oil-fired power plants?
- Steel pipes are primarily used in the construction of oil-fired power plants for transporting oil and gas, as well as for the construction of boilers and other high-pressure equipment. These pipes are durable, resistant to corrosion, and can withstand high temperatures and pressures, making them suitable for the harsh conditions and demands of power plant operations.
- Q:What are the common methods of joining steel pipes?
- The common methods of joining steel pipes include welding, threading, and using mechanical couplings. Welding involves fusing the pipes together using heat, while threading involves screwing the pipes together using threads on the ends. Mechanical couplings are devices that connect the pipes together using compression or other means.
- Q:How are steel pipes used in nuclear power plants?
- Steel pipes are used in nuclear power plants for various purposes, such as transporting cooling water, steam, and other fluids, as well as for supporting and containing radioactive materials. They are crucial components in the construction of piping systems that help maintain the safe and efficient operation of nuclear reactors.
- Q:What does cathodic protection of steel tubes mean?
- There are two ways of cathodic protection: sacrificial anode, cathodic protection and impressed current cathodic protection.Sacrificial anode: connect a living metal or alloy to a protective metal to form a galvanic cell. The active metal replaces the protected metal to lose electrons so that the protected metal is not corroded.
- Q:Can steel pipes be used for underground sewage systems?
- Yes, steel pipes can be used for underground sewage systems. Steel pipes are durable, resistant to corrosion, and can withstand high pressure, making them suitable for transporting sewage underground. However, proper protective coating and maintenance are essential to prevent any potential corrosion or degradation over time.
- Q:What are the different types of pipe fittings used with steel pipes?
- There are several types of pipe fittings commonly used with steel pipes, including elbows, tees, reducers, flanges, couplings, and unions.
- Q:Can steel pipes be used for underground water supply pipelines?
- Indeed, underground water supply pipelines can utilize steel pipes. The reason for the widespread use of steel pipes in water supply systems is their ability to endure, their strength, and their resistance to corrosion. They can withstand high levels of pressure and can accommodate large quantities of water. Furthermore, steel pipes come in a variety of sizes and thicknesses, granting flexibility in the design and installation of underground water supply pipelines. However, it is crucial to ensure that the steel pipes are appropriately coated or lined to avert corrosion and uphold the water's quality during transportation. Regular inspections and maintenance must also be carried out to prevent any potential problems with the steel pipes.
- Q:What are the potential health hazards associated with steel pipe installation?
- Some potential health hazards associated with steel pipe installation include exposure to hazardous chemicals used in the coating or treatment of the pipes, inhalation of dust or fumes generated during cutting or welding, and physical injuries due to accidents or mishandling of heavy equipment. Additionally, improper handling or disposal of waste materials and contaminated water can pose environmental health risks. It is important to follow proper safety protocols, use personal protective equipment, and ensure proper ventilation and waste management to mitigate these hazards.
- Q:What is the impact of steel pipe size on flow rate and pressure?
- Both the flow rate and pressure are significantly impacted by the size or diameter of a steel pipe. To begin with, the flow rate represents the amount of fluid that can pass through the pipe within a given time frame. A larger diameter allows for a greater flow rate as it provides more space for the fluid to move through. This is because a larger cross-sectional area creates less resistance for the fluid. Consequently, increasing the size of the steel pipe generally leads to an increase in flow rate. Additionally, the size of a pipe affects the pressure within it. As the fluid flows through the pipe, it encounters friction against the pipe walls, resulting in resistance. This resistance causes a drop in pressure along the length of the pipe. A smaller diameter pipe experiences higher frictional losses, leading to a greater pressure drop. Conversely, a larger diameter pipe reduces frictional losses, resulting in a lower pressure drop. Therefore, increasing the size of the steel pipe typically leads to a decrease in pressure drop. It is important to note that although increasing the size of a steel pipe generally leads to a higher flow rate and lower pressure drop, other factors can also influence these parameters. These factors include the properties of the fluid, the length and layout of the pipe, and the presence of valves or fittings. Therefore, it is crucial to consider all these factors and perform accurate calculations or simulations to determine the specific impact of steel pipe size on flow rate and pressure within a given system.
We specializes in producing steel tube used the following criteria, in the pursuit of brand quality, while providing professional branding services: | 1. Professional production of ASME Series: T91, T23, T22, T12, T11, T2, etc., steel appearance, size and internal performance indicators comparable with the imported products and strive. | 2. A full range of professional production internally ribbed tube, especially supercritical internally ribbed tube. Finished internally threaded tube with threaded inspection by the root. | 3. A boiler tube free pretreatment process: steel pipe in the regular inspection process is completed.
1. Manufacturer Overview |
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| Location | Jiangsu, China |
| Year Established | 2005 |
| Annual Output Value | Above US$100 Million |
| Main Markets | Main land; Middle East; Southeast Asia |
| Company Certifications | ISO 9001:2008 |
2. Manufacturer Certificates |
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| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period | |
3. Manufacturer Capability |
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| a)Trade Capacity | |
| Nearest Port | Shanghai |
| Export Percentage | 61% - 70% |
| No.of Employees in Trade Department | 390People |
| Language Spoken: | English; Chinese |
| b)Factory Information | |
| Factory Size: | Above 600,000 square meters |
| No. of Production Lines | Above 10 |
| Contract Manufacturing | OEM not offered |
| Product Price Range | Average |
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JIS G3461(Carbon Steel Tubes For Boiler And Heat Exchanger)
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50mt m.t.
- Supply Capability:
- 5000 Tons Per Month m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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