Why Does Rolex Use 904l Stainless Steel?

We produce ASTM/ASME Grade 304, Grade 304L,304h, 316, 316L, 316H, 316TI, 321, 321H, 309S, 309H, 310S, 310H, 410S, 2205, 904L, 2507, 254, gh3030, 625, 253MA, S30815, 317L, Type 317, 316lN, 8020, 800, 800H, C276, S32304 and others special requirement stainless steel grade.

Rolex 904l

Grade 904L electrodes and rods are used for welding grade 904L steels in accordance with AS 1554.6. Grade 904L stainless-steel is a non-stabilized austenitic chrome steel with low carbon content material. This excessive alloy chrome steel is added with copper to improve its resistance to strong decreasing acids, corresponding to sulphuric acid. The steel can be resistant to stress corrosion cracking and crevice corrosion.

So despite the fact that 904L metal is healthier than 316L steel for watches, it is dearer, requires particular instruments and expertise, and is total harder to work with. This has prevented different brands (so far) from benefiting from it, and is one thing special that Rolex has. The profit is clear once you deal with any metal Rolex watch. Now, it gained’t rust or corrode after just a few years, but on some classic Rolex watches, for example, you’ll be able to see that the case has began to corrode and gotten signs of rusting. This is especially true if moist and acid finds its way into the case, as it is not uncommon that vintage watches can show signs of corrosion between the caseback and the case.

They might clearly see that gold and platinum watches didn’t have this corrosion problem, so it needed fixing. In 2003 their entire production line changed to 904L, although it was as early as 1988 that they launched their first 904L metal watch with several variations of the Sea-Dweller.

• Rolex utilizes 904L with the best of high quality management.
• This is why steel Rolex watches look totally different than different metal watches.
• 316L is considered a tougher, more durable, “marine grade” steel, but it does not have luster and acid resistance of 904L.
• Once obtained from Rolex’s metal suppliers, Rolex casts and scans it utilizing an electron microscope that is able to detecting the slightest structural or floor defect.
• Harder and extra rust and corrosion-resistant than different steels, this 904L metal can take and maintain a polish extremely properly.

Trade Item�� EXW,FOB,CNF,CIF,CFR

Stock Thickness: 0.1-200.0mm
Production thickness: 0.5.0-200mm
Width: 600-3900mm
Length: 1000-12000mm
Grade:
200 series: 201,202
300 series: 301,304,304L,304H,309,309S,310S,316L,316Ti,321,321H,330
400 series: 409,409l,410,420J1,420J2,430,436,439,440A/B/C
Duplex: 329,2205,2507,904L,2304
Surface: No.1,1D,2D,2B,NO.4/4K/hairline,satin,6k,BA,mirror/8K

However, the structural stability of this grade collapses at high temperatures, particularly above four hundred°C. In the top, it stays a little bit of a mystery why sure Rolex watches aren’t obtainable. After all, they’re an organization that produces so many watches per yr in-home.

Rolex was not the primary watch model to make use of 904L stainless-steel. That honour, as so many that Rolex claims for itself, goes to Omega. The authentic Omega Seamaster PloProf 600M was created from a single block of 904L stainless steel.

In 2003 Rolex’s complete production line changed to 904L steel. Welding of grade 904L stainless steels could be performed using all standard strategies. This grade does not require pre-warmth and post-weld warmth remedies. Grade 904L could be subjected to hot cracking in constrained weldment.

Grade 904L stainless steels have wonderful resistance to warm seawater and chloride assault. The excessive resistance of grade 904L against stress corrosion cracking is as a result of presence of high quantities of nickel in its composition. Moreover, the addition of copper to these grades develops resistance to sulphuric acid and other decreasing agents in both aggressive and delicate conditions. Rolex used to use the identical steel as everyone else, but in round 2003 they moved their entire metal production to 904L metal. In 1988 they launched their first 904L steel watch with a number of variations of the Sea-Dweller.

We have thousands tons stock of stainless steel sheet and coil with various size and grade,mainly include austenitic stainless steel, martens stainless steel (including precipitation hardened stainless steel sheet & coil), ferritic stainless steel, and duplex stainless steel.

Characteristics of Stainless Steel Sheet and Plate:
High corrosion resistance
High strength
High toughness and impact resistance
Temperature resistance
High workability, including machining, stamping, fabricating and welding
Smooth surface finish that can be easily clean