You can’t use copper, which is cheaper, easier to work with, and easier to find, because distilled water leaches copper – a lot of copper. We selected 316L stainless steel because it has a higher creep resistance, rupture and tensile strength at high temperatures, corrosion and pitting resistance, and exceptional resistance in acidic and hard water areas. Surgical, medical tools, and surgical implants are made with 316l stainless steel.
316L Stainless Steel Food-Grade Seamless Spiral Condensing Coil
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Grade 316 is the standard molybdenum-bearing grade, second in importance to 304 amongst the austenitic stainless steels. The molybdenum gives 316 better overall corrosion resistant properties than Grade 304, particularly higher resistance to pitting and crevice corrosion in chloride environments.
Grade 316L, the low carbon version of 316 and is immune from sensitisation (grain boundary carbide precipitation). Thus it is extensively used in heavy gauge welded components (over about 6mm).
The austenitic structure also gives these grades excellent toughness, even down to cryogenic temperatures.
Compared to chromium-nickel austenitic stainless steels, 316L stainless steel offers higher creep, stress to rupture and tensile strength at elevated temperatures.
Typical applications include:
- Food preparation equipment particularly in chloride environments.
- Marine applications
- Architectural applications
- Medical implants, including pins, screws and orthopaedic implants like total hip and knee replacements