Stainless steel SUS304 seamless thick wall pipe
Stainless steel SUS304 seamless thick wall pipe
SUS304 heavy-wall stainless steel pipe offers good corrosion resistance, strength, and versatility thanks to its 18-20% chromium and nickel content. While "heavy-wall" typically refers to wall thicknesses ranging from 10-50 mm or greater, SUS304 (equivalent to EN 1.4301) is a standard austenitic stainless steel grade suitable for construction, manufacturing, and fluid/gas transport applications where structural integrity and durability are critical. While SUS304 offers good weldability and machinability, its formability is limited compared to thinner pipes, requiring specialized equipment for bending or forming.
What is the thickness of 304 grade stainless steel?
304 stainless steel sheet comes in a wide range of thicknesses, from ultra-thin sheets as thin as 0.4 mm to thick plates up to 150 mm. However, several standard sizes are commonly used across different industries and applications.
304 thick-walled stainless steel pipe refers to stainless steel pipe with a wall thickness of 10-50.0mm. Pipes with a wall thickness of 50mm or more are considered extra-thick-walled stainless steel pipe. 304 thick-walled stainless steel pipe is a widely used stainless steel material. Its rust resistance is superior to that of 200 series stainless steel, and its high-temperature resistance is also relatively good. Its general operating temperature limit is below 700℃.
304 thick-walled stainless steel pipe has excellent corrosion resistance and good resistance to intergranular corrosion. Experiments have shown that 304 thick-walled stainless steel pipe exhibits strong corrosion resistance in nitric acid with a concentration of <=65% and below boiling temperature. It also exhibits good corrosion resistance to alkaline solutions and most organic and inorganic acids.
304 thick-walled stainless steel pipe is a very common stainless steel, also known in the industry as 18/8 stainless steel. Its corrosion resistance is better than that of 430 stainless steel, yet it is more affordable than 316 stainless steel. Therefore, it is widely used in everyday applications, such as high-end stainless steel tableware and outdoor stainless steel railings. Although this type of stainless steel is very common in China, the name "304 stainless steel" originated in the United States. Many people think that 304 stainless steel thick-walled steel pipe is a model name in Japan, but strictly speaking, the official name of 304 stainless steel in Japan is "SUS304".
Key Features of 304L Thick-Wall Pipe
Thickness: "Thick-wall" indicates a significant increase in wall thickness compared to standard pipe, typically 10-50 mm and above.
Versatility: This grade of pipe is highly versatile, finding use in a wide range of applications thanks to its balanced performance.
Corrosion Resistance: Excellent resistance to a wide range of corrosive agents, making it suitable for a wide range of environments.
Mechanical Properties: Features good toughness, strength, and ductility.
Weldability: Excellent weldability, but large cross-sections may require special considerations, where low-carbon 304L variants are more suitable.
Machinability: Good machinability enables efficient processing.
Formability: While strong and durable, its greater thickness makes it less flexible, making bending or forming more challenging than thin-walled pipe without specialized equipment.
Construction and Manufacturing: The robust properties of thick-walled SUS304 make it an ideal choice for construction projects and manufacturing where structural integrity is paramount.
Fluid and Gas Transport: Used in piping systems for transporting liquids and gases. High-end retail and residential projects: Its aesthetic appeal, especially when polished, makes it suitable for high-end finishes.
Gnee Steel specializes in the production and sale of a wide range of stainless steel products, including 304, 316, 321, 904, 904L, 2205 Duplex, 2205 Duplex, and 316L stainless steel. Gnee Steel's products are widely used in the kitchen, aerospace, chemical, power, automotive, and nuclear energy sectors. We also provide custom stainless steel solutions tailored to customer needs. For stainless steel pricing or custom alloy solutions, please email ru@gneesteelgroup.com for a quote.