904l Vs 316l In Watchmaking Industry

We produce ASTM/ASME 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.

aisi 904l

Harder and extra rust and corrosion-resistant than different steels, this 904L steel can take and hold a polish incredibly nicely. This is why steel Rolex watches look completely different than different metal watches. Rolex calls 904L steel a “corrosion-resistant superalloy.” 904L differs from 316L because of further Chromium, Molybdenum, Nickel, and Copper which gives it improved resistance to acids.

316L is considered a harder, tougher, “ grade” metal, but it doesn’t have luster and acid resistance of Rolex’s 904L stainless steel. Rolex aficionados have commented that some individuals sweat more acidic than others as demonstrated by discovering pits in 316L wrist watches making 904L stainless extra desirable. Noble metallic wristwatches such as gold or platinum watches wouldn’t have corrosion points, but base metallic does. Until the widespread use of stainless-steel, older watches utilized primitive stainless casebacks and some sort of base-metallic case. Unlike the rest of the trade, Rolex utilizes 904L stainless-steel for qualities that Rolex believes surpasses the trade commonplace.

Hi, I even have been identified with a nickel allergy whereby I am hyper delicate to it. The purpose I’m contacting you is in the hope you would possibly be able to assist me as regards to the nickel content material in right now’s modern watches. I have worn a titanium one but the modern designs I like corresponding to Diesel are created from chrome steel but I am undecided of how a lot nickel can be in them?

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  • This is why metal Rolex watches look completely different than other steel watches.
  • Rolex calls 904L chrome steel a “corrosion-resistant superalloy.” 904L differs from 316L because of additional Chromium, Molybdenum, Nickel, and Copper which gives it improved resistance to acids.
  • Harder and more rust and corrosion-resistant than other steels, this 904L metal can take and maintain a polish extremely well.
  • 316L is considered a more durable, tougher, “marine grade” metal, nevertheless it doesn’t have luster and acid resistance of 904L.

Delivery time��7 to 15 days, depends on the quantity

Our stainless production

When looking at a pre-owned Rolex, the scratches point out a storyline that solely the can tell. Grade 904L stainless-steel is a non-stabilized austenitic stainless steel with low carbon content. This high alloy chrome steel is added with copper to improve its resistance to robust lowering acids, corresponding to sulphuric acid.

Nobody exterior Rolex (or Wilsdorf basis) knows the precise number, but our estimate is between 800.000 and 950.000 watches a year. We also think that this quantity is ‘dynamic’, which means they’ll go up and down relying on the financial climate. We’ve seen some years that weren’t simple, in all probability also not for Rolex.

Rolex has been recognized to send steel back when it does not meet its exacting specs or when impurities are discovered. 904L stainless steel doesn’t machine well which makes it costlier to producer and fabricate right into a wrist watch. Subsequently, Rolex designs its personal instruments to manufacture 904L watch instances, casebacks, and bracelets together with a 250 ton press to stamp the initial instances. With all these protections maintaining a Rolex watch useful, the world that almost all Rolex wearers get nervous are scratches.

The steel can also be resistant to stress corrosion cracking and crevice corrosion. Grade 904L is non-magnetic, and provides excellent formability, toughness and weldability.

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 that can be easily clean

aisi 904l