stainless steel T profile

Type 304:
The most common grade the classic 18/8 stainless steel. Its the most versatile and most widely used stainless steel,available in a wider range of products, forms and finishes than any other, its balanced austenitic structure enables  be severely deep drawn without intermediate annealing.it to Grade 304 has good oxidation resistance in intermittent service to 870°C and in continuous service to 925°C.Continuous use of 304 in the 425-860°C range is not recommended if subsequent aqueous corrosion resistance is important.Grade 304 has excellent forming and welding characteristics by all standard fusion methods, both with and without filler metals, although heavy welded sections in Grade 304 may require post-weld annealing for maximum corrosion resistance, post-weld annealing is not required when welding thin sections.

Type 316:
The second most common grade (after 304) amongst the austenitic stainless steels, its austenitic structure also gives the Grade 316 excellent toughness, even down to cryogenic temperatures.
Grade 316 also has good oxidation resistance in intermittent service to 870°C and in continuous service to 925°C. Continuous use of 316 in the 425-860°C range is not recommended if subsequent aqueous corrosion resistance is important.
Grade 316 steel is used in the handling of certain food and pharmaceutical products where it is often required in order to minimize metallic contamination.

Type 303:
The free machining version of Grade 304 Grade 303 represents the optimum in machinability among the austenitic stainless steels, it is primarily used when production involves extensive machining. The addition of sulfur and phosphorus which is responsible for the improved machining and galling characteristics of Grade 303 lowers its corrosion resistance, it still has good resistance to mildly corrosive atmospheres however its significantly less than that of Grade 304.
As well as reducing the corrosion resistance, the sulphur additions in Grade 303 also result in poor weldability (welds must be annealed for maximum corrosion resistance) and reduced formability compared to Grade 304, therefor sharp bends should not be attempted.
Grade 303 has good oxidation resistance in intermittent service to 760°C and in continuous service to 870°C. Continuous use in 425-860°C range are not usually recommended due to carbide precipitation, Grade 303 usually does not have a low carbon content so is susceptible to sensitisation.

stainless steel T profile:

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