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Difference between AISI 316 stainless steel and AISI 316L stainless steel

Stainless steel 316L

Stainless steels, thanks to their chemical composition, are metal alloys, which are naturally corrosion resistant.

AISI316L stainless steel, known as 1.4404, is different from AISI 316 (1.4491) stainless steel because it has less carbon inside. The “L” actually stands for “low carbon” content. Specifically, the carbon quantity present in AISI 316L stainless steel must be ≤ 0,03. On the contrary, in AISI 316 it must be ≤ 0,07.

The other elements in the two alloys are the same:

table-steel-316

All FRABO stainless steel fittings are produced with AISI316L stainless steel and they guarantee an excellent corrosion resistance.  

For this reason, they are perfect for drinkable water distribution systems, where it is essential to guarantee the maintenance of water pureness, avoiding time degradation.

Find more about our stainless steel aisi 316l press fittings

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