Austenitic stainless steel 304 is the most widely used chromium-nickel grade worldwide. It offers excellent corrosion resistance in ordinary atmospheric, chemical, and food-processing environments, with strong formability and weldability for pipes, sheets, and structural fabrications.
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Excellent corrosion resistance in mild environments
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Outstanding formability and deep draw capability
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Good weldability with common arc and TIG processes
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Non-magnetic in annealed condition
Typical applications
Food processing Dairy Architectural trim General piping Kitchen equipment
304L is a low-carbon variant of 304 designed to reduce carbide precipitation during welding. It retains the corrosion and formability profile of 304 while improving weld-zone integrity in thicker sections and multi-pass welds.
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Lower carbon for improved weld corrosion resistance
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Reduced sensitization risk in the HAZ
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Ideal for welded tanks, pipes, and heavy gauges
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Compatible with 304 in many service environments
Typical applications
Welded chemical tanks Pipelines Pharmaceutical skids Heat exchangers Cryogenic piping
316L adds molybdenum for superior resistance to chlorides, pitting, and crevice corrosion compared with 304/304L. The low-carbon chemistry supports welded construction in aggressive process and marine environments.
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Molybdenum-enhanced pitting and crevice resistance
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Strong performance in chloride and marine exposure
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Low carbon for welded fabrications
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Wide acceptance in pharma and hygienic design
Typical applications
Marine & coastal Chemical processing Desalination Medical devices Food & beverage
321 is stabilized with titanium to resist chromium carbide formation at elevated temperatures. It is specified for equipment exposed to sustained or cyclic high-temperature service where sensitization must be controlled.
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Titanium stabilization for high-temperature service
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Resistance to intergranular corrosion in the heat-affected zone
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Good strength and oxidation resistance at elevated temps
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Often used in exhaust, furnace, and aerospace-adjacent ducting
Typical applications
Aircraft exhaust manifolds Furnace parts Refinery heaters Expansion bellows Thermal oxidizers
310 is a high chromium-nickel austenitic grade valued for excellent oxidation resistance and strength at elevated temperatures. It suits furnaces, kilns, and process equipment operating in continuous or cyclic heat.
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High Cr–Ni for oxidation and scaling resistance
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Strong creep resistance at elevated temperatures
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Suitable for repeated thermal cycling
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Used where 304/316 families are temperature-limited
Typical applications
Furnace linings & muffles Cement kilns Heat treatment baskets Radiant tubes Burner parts