A Complete Guide on DIN 1.4724 Stainless Steel Pipes & Tubes
DIN 1.4724 Stainless Steel Pipes & Tubes are designed for industrial systems that operate under elevated temperatures and oxidizing conditions. Also identified by the EN designation X10CrAlSi13, this ferritic chromium stainless steel contains controlled additions of aluminium and silicon. These alloying elements help create a protective surface layer that improves resistance to oxidation, scaling, and certain sulphurous gases at high temperatures. DIN 1.4724 Stainless Steel Pipes & Tubes are commonly used where standard stainless steel may experience accelerated scaling or material deterioration during continuous thermal exposure.
Chemical Composition of DIN 1.4724 Stainless Steel
The chemical composition of DIN 1.4724 includes approximately 12.00–14.00% chromium, 0.70–1.20% aluminium, and 0.70–1.40% silicon. It also contains a maximum of 0.12% carbon, 1.00% manganese, 0.040% phosphorus, and 0.015% sulphur, with iron forming the balance.
Chromium improves oxidation and scaling resistance, while aluminium and silicon support the formation of a stable protective oxide layer on the surface. This composition makes DIN 1.4724 Stainless Steel Pipes & Tubes suitable for equipment exposed to hot air, combustion gases, and oxidizing sulphurous environments.
High-Temperature and Scaling Resistance
One of the principal advantages of DIN 1.4724 Stainless Steel Pipes & Tubes is their resistance to scaling in air at temperatures of up to approximately 850°C. This makes the material suitable for applications involving repeated heating, continuous high-temperature service, and exposure to combustion-related gases.
The alloy also offers resistance to oxidizing sulphurous gases and has a relatively low tendency toward carburization in reducing-gas environments. However, operating pressure, temperature cycles, wall thickness, gas composition, and mechanical loading must all be evaluated before selecting the material for a specific application.
Mechanical and Physical Properties
In the annealed condition at room temperature, DIN 1.4724 has a minimum 0.2% proof strength of approximately 250 N/mm² and a tensile strength ranging from 450 to 650 N/mm². Its minimum elongation for long products is approximately 15%, while its maximum hardness is around 192 HB.
The material has a density of approximately 7.7 g/cm³, thermal conductivity of around 21 W/m·K at 20°C, and a specific heat capacity of approximately 500 J/kg·K. Its ferritic structure also makes the material magnetic. These characteristics must be considered when designing high-temperature piping, heat-transfer equipment, and fabricated tubular components.
DIN 1.4724 Seamless and Welded Pipes
DIN 1.4724 Stainless Steel Pipes & Tubes may be supplied in seamless or welded configurations depending on the required dimensions, pressure conditions, fabrication method, and end application. Seamless pipes are generally preferred for applications requiring uniform construction and reliable performance under pressure or thermal stress.
Welded pipes and tubes can provide a practical solution for larger diameters, customized dimensions, and fabricated furnace components. The final manufacturing standard, dimensional tolerance, testing requirement, and heat-treatment condition should always be clearly specified at the time of purchase.
Available Pipe and Tube Forms
DIN 1.4724 pipes and tubes can be supplied in different outside diameters, wall thicknesses, lengths, and end configurations to meet project-specific requirements. Products may include seamless pipes, welded pipes, round tubes, cut-to-length tubes, fabricated tubular components, and customized parts manufactured according to technical drawings.
Depending on the application, the products may be supplied with plain ends, bevelled ends, threaded ends, or specially prepared ends for welding and installation. Surface conditions, dimensional tolerances, inspection requirements, and material test certification can also be defined according to the purchaser’s technical specifications.
Applications of DIN 1.4724 Stainless Steel Pipes & Tubes
DIN 1.4724 Stainless Steel Pipes & Tubes are widely used in furnace engineering, boiler construction, mechanical engineering, heat exchangers, industrial heating systems, and high-temperature gas-handling equipment. They may also be selected for thermocouple protection tubes, furnace rails, grates, conveying components, combustion equipment, exhaust systems, and structural parts exposed to elevated temperatures.
The grade is particularly useful where resistance to high-temperature scaling and oxidizing sulphurous atmospheres is more important than the level of aqueous corrosion resistance required in conventional chemical or marine piping systems.
Why Choose Kogyo Steel for DIN 1.4724 Stainless Steel Pipes & Tubes in Japan
Kogyo Steel is a trusted DIN 1.4724 Stainless Steel Pipes & Tubes Manufacturer & Supplier in Japan, serving customers across furnace engineering, power generation, boiler manufacturing, heat-treatment equipment, chemical processing, and general industrial sectors. Kogyo Steel supplies DIN 1.4724 pipes and tubes in customized sizes, wall thicknesses, lengths, and manufacturing configurations according to customer drawings and project requirements.
With a strong focus on material quality, dimensional accuracy, inspection, documentation, competitive pricing, and dependable delivery, Kogyo Steel supports both standard orders and specialized high-temperature piping requirements.
Conclusion
Correct material selection and complete technical specifications help improve system reliability, simplify fabrication, and reduce the possibility of premature failure in demanding high-temperature applications.
Contact Kogyo Steel to get high-quality DIN 1.4724 Stainless Steel Pipes & Tubes with customized dimensions, competitive prices, and reliable delivery support.
