JIS G3444 G3445 Hot Dipped Galvanized Carbon Steel Pipes
JIS G3444 G3445 Hot Dipped Galvanized Carbon Steel Pipes
JIS HDG steel pipe
FOB
10tons
Tianjin, China
25Day
JIS G3444 and JIS G3445 are Japanese standards for hot-dip galvanized steel pipes. JIS G3444 is used for structural applications like construction and scaffolding, while JIS G3445 is designed for mechanical uses such as machinery and automotive parts. Both offer excellent corrosion resistance and durability, making them suitable for industries like construction, agriculture, and energy.
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What Is JIS G3444 G3445 Galvanized Steel Pipe?
JIS Standard
The Japanese Industrial Standards (JIS) is a comprehensive system of specifications that ensures the quality, safety, and reliability of materials, components, and industrial products. Established and maintained by the Japanese Standards Association (JSA), JIS serves as a benchmark for manufacturing excellence and is widely recognized across industries globally. It covers diverse categories, including steel, machinery, electronics, and construction, promoting consistency and interoperability for both domestic and international markets.
JIS G3444 G3445 Hot-Dip Galvanized Steel Pipe
JIS G3444 and JIS G3445 hot-dip galvanized steel pipes are specific categories under the JIS system, designed for structural and mechanical applications. These pipes are coated with a protective layer of zinc through the hot-dip galvanization process, offering outstanding resistance to corrosion and enhancing their lifespan.
JIS G3444 applies to carbon steel pipes used for structural purposes, such as in buildings, bridges, and scaffolding. These pipes provide excellent strength and durability to support various construction projects. On the other hand, JIS G3445 focuses on carbon steel pipes for mechanical structures, making them suitable for manufacturing machinery parts, automotive components, and industrial equipment.
Together, these standards ensure that hot-dip galvanized steel pipes meet the stringent quality requirements for reliability and performance in demanding environments.
Our JIS G3444/G3445 hot‑dip galvanized carbon steel pipe meets Japanese industrial standards, providing long‑lasting corrosion resistance and exceptional strength. Produced via a high‑quality hot‑dip process, these pipes are ideal for structural, scaffolding, and fluid transport applications.
JIS G3444 G3445 Galvanized Steel Pipe Specifications
| Product Name | JIS G3444 G3445 Galvanized carbon steel pipe |
| Material | Carbon Steel |
| Surface Coating | Hot dip galvanized zinc coating 30um or above |
| Pre galvanized zinc coating 30g/m2 or above | |
| Pipe Ends | Plain ends |
| Certificates | ISO 9001 / ISO 18001 / ISO 14001 /BSI / UL / FM |
| Trade terms | FOB, CFR, CIF, EXW, FCA |
| Payment terms | T/T, LC |
| Delivery time | 25-45 days (based on quantity) after receiving advanced payment by T/T or LC . |
JIS G3444 Galvanized Steel Pipe (Structural Use)
| Pipe Size (Outer Diameter) | Wall Thickness (mm) | Length (m) | Weight (kg/m) |
| 15 mm (1/2") | 1.6 - 3.2 | 6-12 | 1.2 - 1.5 |
| 20 mm (3/4") | 1.6 - 3.2 | 6-12 | 1.5 - 1.9 |
| 25 mm (1") | 1.6 - 3.2 | 6-12 | 2.0 - 2.5 |
| 40 mm (1 1/2") | 2.0 - 4.0 | 6-12 | 3.0 - 3.8 |
| 50 mm (2") | 2.0 - 4.0 | 6-12 | 3.8 - 4.7 |
| 100 mm (4") | 3.0 - 5.0 | 6-12 | 7.5 - 9.0 |
| 150 mm (6") | 4.0 - 6.0 | 6-12 | 12.5 - 15.0 |
JIS G3445 Galvanized Steel Pipe (Mechanical Use)
| Pipe Size (Outer Diameter) | Wall Thickness (mm) | Length (m) | Weight (kg/m) |
| 15 mm (1/2") | 1.2 - 2.0 | 6-12 | 0.9 - 1.2 |
| 20 mm (3/4") | 1.2 - 2.0 | 6-12 | 1.1 - 1.5 |
| 25 mm (1") | 1.2 - 2.0 | 6-12 | 1.4 - 1.9 |
| 40 mm (1 1/2") | 1.6 - 3.0 | 6-12 | 2.0 - 2.5 |
| 50 mm (2") | 1.6 - 3.0 | 6-12 | 2.5 - 3.3 |
| 100 mm (4") | 2.0 - 4.0 | 6-12 | 5.5 - 7.0 |
| 150 mm (6") | 2.5 - 4.5 | 6-12 | 9.5 - 12.5 |
JIS G3444 G3445 Galvanized Steel Pipe Product
Key Benefits of JIS G3444 G3445 Galvanized Steel Pipe
1. Superior Corrosion Resistance
Our pipes are coated using a hot-dip galvanizing process, which creates a strong zinc-iron alloy layer on the surface. This protective layer ensures excellent resistance to rust and oxidation, even in harsh outdoor or industrial environments. With zinc coating weights typically ranging from 200g/m² to 500g/m², the service life of the pipe is significantly extended.
2. Certified to Japanese Industrial Standards
All pipes comply with JIS G3444 and JIS G3445 specifications, ensuring high mechanical strength and dimensional accuracy. JIS G3444 is ideal for general structural use, while JIS G3445 is specifically suited for machinery and automotive applications that require enhanced tensile and yield strength.
3. Excellent Weldability and Fabrication Performance
These carbon steel pipes are made from high-quality materials such as Q195, Q235, or equivalent grades. They offer superior weldability, making them suitable for cutting, bending, grooving, threading, and other fabrication processes required in construction and mechanical engineering.
4. Wide Range of Sizes and End Types
Available in various outer diameters (15mm–250mm) and wall thicknesses, our galvanized steel pipes can be customized with plain ends, beveled ends, threaded ends, or grooved ends to meet different project requirements.
5. Long-Lasting Surface Finish
Besides standard hot-dip galvanizing, optional surface treatments such as oil coating or black painting are available upon request. These additional finishes provide further resistance against moisture, dust, and chemical exposure, enhancing the pipe's durability in demanding applications.
6. Reliable Quality and Testing
Every batch of steel pipe undergoes strict quality control in accordance with ISO 9001 standards. Mechanical property testing, chemical analysis, dimensional checks, and coating thickness inspections are performed to guarantee consistency and performance. Third-party inspection is also available to meet international project requirements.
JIS G3444 G3445 Galvanized Steel Pipe Applications
JIS G3444 applies to carbon steel pipes used for structural purposes, such as in buildings, bridges, and scaffolding. These pipes provide excellent strength and durability to support various construction projects. On the other hand, JIS G3445 focuses on carbon steel pipes for mechanical structures, making them suitable for manufacturing machinery parts, automotive components, and industrial equipment. Below are the key industries and uses for these pipes:
1. Construction Industry
Hot-dip galvanized steel pipes are commonly used in construction due to their excellent structural integrity and ability to withstand harsh environmental conditions. JIS G3444 pipes, which are specifically designed for structural applications, are ideal for:
Building Frameworks: Used in the construction of high-rise buildings, bridges, and industrial plants.
Scaffolding Systems: Provides sturdy, reliable support in scaffolding structures for construction workers and equipment.
Piping for Civil Works: Used in foundations, underground works, and other civil engineering applications where strength and corrosion resistance are critical.
2. Mechanical and Manufacturing Applications
JIS G3445 galvanized steel pipes are designed for mechanical uses, making them ideal for applications that require precise specifications and consistent performance under mechanical stress. These pipes are used in:
Machinery and Equipment: Perfect for producing machine parts and structural components in industrial machinery and automotive systems.
Automotive Industry: Employed in the production of automotive components, including exhaust systems, chassis parts, and frames.
Hydraulic and Pneumatic Systems: Used in hydraulic lines and pneumatic systems due to their pressure-resistant capabilities.
3. Agricultural and Irrigation Systems
The corrosion-resistant properties of galvanized steel pipes make them suitable for agricultural and irrigation uses. These pipes are used for:
Irrigation Lines: Widely used in farming for water supply and distribution, ensuring a reliable water source for crops and plants.
Livestock Fencing: Galvanized steel pipes are durable enough for creating secure and long-lasting fences for livestock and agricultural land boundaries.
4. Water Supply and Drainage Systems
The JIS G3444 and G3445 hot-dip galvanized steel pipes are ideal for use in water supply and drainage systems due to their resistance to corrosion and rust, which is crucial in environments exposed to moisture. Common applications include:
Water Transport: Used to carry potable water in municipal water systems, ensuring clean and reliable water delivery.
Sewer and Drainage Systems: Galvanized steel pipes help efficiently manage stormwater and wastewater systems in urban and rural areas.
5. Oil and Gas Industry
The oil and gas sector relies heavily on galvanized steel pipes for transportation and storage of fuels and other liquids. Their resistance to corrosion in harsh environments makes them ideal for:
Pipeline Systems: Used in the construction of pipelines for the transportation of oil, natural gas, and other petrochemical products.
Storage Tanks: Used in the construction of tanks for storing liquids, offering long-term durability and resistance to environmental conditions.
6. Marine and Coastal Applications
Galvanized steel pipes are also used in marine environments due to their resistance to saltwater corrosion. They are typically used in:
Docking and Pier Construction: Used for the support structures of piers, docks, and breakwaters.
Marine Infrastructure: Applied in the construction of coastal infrastructure that requires materials resistant to the harsh conditions of saltwater and frequent moisture exposure.
7. Energy and Power Generation
The durability and reliability of JIS G3444 and G3445 hot-dip galvanized steel pipes make them ideal for the energy industry, including:
Power Plant Installations: Used for cooling systems, water pipelines, and structural components in power plants, ensuring long-lasting performance.
Renewable Energy: Employed in the installation of wind turbines, solar energy systems, and related infrastructure.
These applications highlight the versatility and importance of JIS G3444 and JIS G3445 hot-dip galvanized steel pipes across multiple industries, offering durability and reliability in a wide range of demanding environments.
JIS G3444 G3445 Galvanized Steel Pipe FAQ
1. What is JIS G3444 G3445 Hot-Dip Galvanized Steel Pipe?
JIS G3444 and JIS G3445 are Japanese Industrial Standards (JIS) for carbon steel pipes. JIS G3444 focuses on pipes used for structural purposes, while JIS G3445 specifies pipes for mechanical structures. Both types of pipes undergo the hot-dip galvanization process, where they are coated with a layer of zinc to enhance their resistance to corrosion, making them suitable for use in various industries like construction, automotive, agriculture, and more.
2. What are the main differences between JIS G3444 and JIS G3445?
The primary difference lies in their intended applications:
JIS G3444 is used for structural applications like buildings, bridges, scaffolding, and other heavy-duty frameworks.
JIS G3445 is designed for mechanical use such as machinery, automotive parts, and equipment where precision and mechanical strength are essential.
3. What industries use JIS G3444 G3445 Hot-Dip Galvanized Steel Pipe?
These galvanized steel pipes are used across a wide range of industries, including:
Construction (for structural frameworks and scaffolding)
Mechanical Engineering (for manufacturing machinery and automotive parts)
Agriculture and Irrigation (for irrigation lines and fencing)
Water Supply and Drainage (for water transport and sewer systems)
Oil and Gas (for pipeline systems and storage tanks)
Marine (for coastal infrastructure and docking)
Energy (in power plants and renewable energy systems)
4. What are the advantages of using hot-dip galvanized steel pipes?
Hot-dip galvanized steel pipes offer several key benefits:
Corrosion Resistance: The zinc coating provides a robust barrier against rust and corrosion, extending the lifespan of the pipes.
Durability: These pipes can withstand harsh environmental conditions, making them ideal for outdoor and marine applications.
Cost-Effectiveness: They require less maintenance over time compared to untreated steel pipes, reducing long-term costs.
Environmental Protection: The galvanization process helps protect the pipes from degradation due to chemicals, moisture, and atmospheric conditions.
5. What sizes and specifications are available for JIS G3444 G3445 Hot-Dip Galvanized Steel Pipe?
JIS G3444 and JIS G3445 pipes come in a variety of sizes, with outer diameters typically ranging from 15 mm (1/2 inch) to 150 mm (6 inches), and wall thicknesses varying from 1.2 mm to 5.0 mm. The pipes are available in different lengths, generally ranging from 6 to 12 meters. Custom sizes and specifications can also be provided based on specific project requirements.
6. Can JIS G3444 G3445 Hot-Dip Galvanized Steel Pipe be used for high-pressure applications?
While these pipes are highly durable and corrosion-resistant, their suitability for high-pressure applications depends on the specific requirements, such as pressure rating, pipe size, and wall thickness. For high-pressure systems, it's important to consult with the manufacturer to ensure the pipes meet the necessary standards for the intended use.
7. Are JIS G3444 G3445 Hot-Dip Galvanized Steel Pipes environmentally friendly?
Yes, galvanized steel pipes are considered environmentally friendly because the galvanization process protects the steel from corrosion, extending its lifespan and reducing the need for frequent replacements. Additionally, zinc is a naturally abundant and recyclable material, making galvanized steel pipes an eco-friendly option.
8. How do I maintain JIS G3444 G3445 Hot-Dip Galvanized Steel Pipes?
Maintenance for galvanized steel pipes is minimal due to their corrosion resistance. However, periodic inspections for any damage to the zinc coating, such as scratches or chips, are recommended. If necessary, the damaged areas can be retouched with a zinc-rich paint to ensure continued protection. Proper installation and storage are also essential to prevent exposure to extreme environmental conditions during transportation.
9. Can I customize JIS G3444 G3445 Hot-Dip Galvanized Steel Pipes for my project?
Yes, manufacturers can provide custom sizes, lengths, wall thicknesses, and coatings based on your project's specific needs. It's advisable to discuss your requirements with the supplier to ensure the pipes meet the necessary standards for your application.
