What is better 316L or 904L?
Type 904L contains more chromium, molybdenum and nickel then 316L, plus also some copper, manganese and silicon, which makes it more corrosion resistant than 316L. But the main issue with 904L, besides its extremely high price, is that it is still harder to process than 316L.
What is grade 904L stainless steel?
Alloy 904L (UNS N08904) is a superaustenitic stainless steel that is designed for moderate to high corrosion resistance in a wide range of process environments. The combination of high chromium and nickel content, coupled with additions of molybdenum and copper, assure good to excellent corrosion resistance.
Is 904L super duplex?
The corrosion resistance of 904L is equivalent to most super duplex stainless steels (SDSS) across a wide range of applications. At low temperatures, 904L will retain good impact toughness, and it is not at risk of forming deleterious intermetallic phases at higher temperatures.
What is 904L steel used for?
Alloy 904L (UNS N08904) is a superaustenitic stainless steel designed for corrosion and pitting resistance in a wide range of process environments. It is used extensively in the chemical process industry including the production of phosphate-based fertilizers.
How strong is 904L steel?
Its popularity in these areas comes from the properties which make it resistant to rust and corrosion. 904L steel takes the resistance to corrosion up a notch….316L VS 904L Steel Composition:
| 316L Steel | 904L Steel | |
|---|---|---|
| Hardness (Rockwell) | 95 | 70-90 |
| Hardness (Brinell) | 217 | 150 |
When did Rolex use 904L steel?
904L STEEL In 1985, Rolex became the first watchmaking brand to use this steel from the 904L family for its cases.
Who uses 904L steel?
Rolex is certainly the only one that openly markets their use of 904L Stainless Steel.
Can 904L steel rust?
904L stainless steel is harder and does not machine well than other steels used in watches. In addition to higher rust, corrosion, and pitting resistance, 904L polishes quite well with the correct tools and know-how.
What did Rolex use before 904L?
It wasn’t that long ago that Rolex ditched 316L to 904L. For years, 316L was hailed for its ability to ward off salt water and acidic liquids due to its low carbon content.
Does Omega use 904L steel?
What grade of steel is used in modern OMEGA watches? OMEGA uses stainless steel 1.4435 or 316L. Steel 904L and 316L have the same grade of hardness.
