What are Stainless Steel 304H Pipes?
All you need to know about Stainless Steel 304H Pipes. Chromium, nickel, and carbon are the three main components of the austenitic alloy 304. The SS 304H Pipe is made with a minimum tensile strength of 515Mpa and a minimum yield strength of 205Mpa. They are easily extendable by 40% to meet requirements. Stainless Steel 304H Pipes are strong enough to withstand temperatures as high as 500° C and as low as 800° C.
The chemical makeup, mechanical qualities, weldability, and corrosion/oxidation resistance of SS 304H seamless pipes, the most adaptable and frequently used of all stainless steels, offer the best all-around performance at a relatively cheaper cost. In contrast, SS 304H Seamless Tubes (DIN 1.4301) have a higher carbon content than 304, making them heat-resistant stainless steel with excellent bending, welding, and corrosion resistance properties. They also have high strength and long-lasting organisational stability, as well as excellent cold deformation capacity.
In the gas, chemical, and gas industries, SS 304H welded pipes are frequently used in industrial boilers, pressure vessels, heat exchangers, pipelines, and condensers. The substance is also utilised by the entire power generation sector.
The SS 304H round pipes can withstand operating temperatures of up to 300 degrees Celsius and have a low coefficient of thermal expansion and greater heat conductivity than austenitic steels. Generally speaking, the SS 304H square pipes’ high-temperature strength lies between 950 and 1150 degrees Celsius. It should be mentioned that the strength of stainless steel 304H rectangular pipes abruptly increases below 900 degrees Celsius. Care must be taken while cold working SS 304H hexagonal pipes because proof stress is higher and elongation is lower than it is for type 304.
Characteristics of Stainless Steel 304H Pipes
High-temperature applications are suitable because of their increased strength at temperatures above 500 °C and up to 800 °C.
In intermittent usage up to 870° C and in continuous service up to 920° C, grade 304H offers good oxidation resistance.
becomes sensitive between 425-860° C, hence it is not advised if aqueous corrosion resistance is needed.
In intermittent usage up to 870° C and in continuous service up to 920° C, grade 304H offers good oxidation resistance.
Due to the presence of chromium and nickel, respectively, the material has good resistance to corrosion in oxidising conditions and is only mildly aggressive in organic acids.
Applications of Stainless Steel 304H Pipes
Grade 304H SS Pipes are commonly used for Petroleum refineries, Boilers, Pipelines, Heat exchangers, Condensers, Steam exhausts, Cooling towers, and Electric generation plants, Occasionally used in fertilizer, chemical plants, chemical Processing, Oil & Gas, and Marine environments.
