304 /316L Stainless steel coiled tubingchemical component ,316L Stainless Steel: Metal of the Day for Apple Watch

In the context of Epic Music, Apple SVP of Design Jonathan Ive summed up his introduction to the Apple Watch with these words in a video on Apple’s website.
A series of videos released in March are timed to coincide with Apple CEO Tim Cook’s Apple Watch presentation, which talks about the watch’s “game change” (as they see it), but we’re of course interested in the ones that highlight aluminum. and stainless steel used in the construction of the gadget.

Product Description

ASTM A269 TP304/304L, 316/316L Stainless Steel Tubing Coil

304/L (UNS S30400/UNS S30403) CHEMICAL COMPOSITION % (MAX .)
Cr
Chromium
Ni
Nickel
C
Carbon
Mo
Molybdenum
Mn
Manganese
Si
Silicon
Ph
Phosphorus
S
Sulfur
18.0-20.0 8.0-12.0 0.030 0.0 2.00 1.00 0.045 0.30
316/L (UNS S31600/UNS S31603) CHEMICAL COMPOSITION % (MAX .)
Cr
Chromium
Ni
Nickel
C
Carbon
Mo
Molybdenum
Mn
Manganese
Si
Silicon
Ph
Phosphorus
S
Sulfur
16.0-18.0 10.0-14.0 0.030 2.0-3.0 2.00 1.00 0.045 0.30*

 

Quality Coil Tubing

We are a specialist for coil tubing, having the expertise and techniques to meet tubing bend service, all the tubing is conducted in 100% tested at the appropriate pressure, tubing inner and outer surface is clean and try for packing,

  • Precision bending
  • Smooth bends
  • Surface roughness Ra < 0.5 μm
  • Standard tolerance: ASTM A269, or D4/T4

After annealing, straighten stainless steel tubing is soft, tubing can be bent, formed, fabricated in various directions and angles, for heat exchanger system, typical tubing is U bend and coil tubing, also for food industry, they are food grade stainless steel.

Standard Stainless Steel Tubing Coil Dimensions

Stainless steel tube is designed in coiling form, general small diameter, maximum tube length can be 1000 meters, without any joint metal, there are a large range sizes of stainless steel tubing for coiling, standard outside diameter is given below, and wall thickness ranges from 0.0275 inch – 0.083 inch, maximum length reach to 1000 meters.

Bright Annealing Stainless Steel Tubing Coil

We offer welded and seamless tube in coiling shape, cold dawn should be carried out, if required, precise drawn process is available, to obtain smooth surface, tubes can be processed bright annealed finish.,

Advantages Of Coiled Tubing

Stainless steel tubing coil have excellent high temperature resistance and corrosion resistance, compared to cooper tube, stainless tube thickness can be reduced 30% – 60%, not too thin and too thick, it is not rust and sanitary, reducing maintenance time, saving cost, easy to install and change.

Not only is it tough and shiny, it’s incredibly durable – just like Arnold Schwarzenegger in his iron pump salad days.
So how is 316L different from Vanilla 316 stainless steel? Straight 316 is an austenitic combination of chromium and nickel with molybdenum, for corrosion resistance 316L has a lower carbon content, which helps the metal to remain corrosion resistant after welding. (The main difference between 316 and 304 is that 316 handles warmer temperatures better.)
Type 316L is an ultra-low carbon version of Type 316 that minimizes harmful carbide emissions during welding. (Editor’s note: 316 technically contains a maximum of 0.08% carbon, while 316L has a maximum of 0.03%).
Typical applications include exhaust manifolds, oven components, heat exchangers, jet engine components, pharmaceutical and photographic equipment, valve and pump internals, chemical equipment, digesters, storage tanks, evaporators, pulp, paper and textile processing equipment, components and pipelines exposed to the marine atmosphere.
Type 316L is widely used in welded construction where it is immune to carbide precipitation from welding, providing optimum corrosion resistance.
As Ive says in the video, Apple’s obsolescence plans have gotten tougher – or at least the material for its latest products has gotten tougher.
Apple takes 316L stainless steel, then tunes it with a “series of alloying and machining” to make the case stronger, and machine it through a cold forging process. Minimum impurities and guaranteed hardness. The forgings are then milled on a “12-station multi-channel milling machine”, which ensures “high-precision uniformity throughout the body”. It is then professionally “polished to a mirror finish”.
The loops of the Milanese strap are woven together with thin steel rings to form a “fluid mesh” that resembles fabric, and the bracelet is made up of approximately 140 individual components.
None of this helps when you lose it in a taxi or get stolen, but it certainly does its best to justify the $549 base price!
According to our in-house stainless steel expert Kathy Benchin Olsen, sweat is salty, so it makes sense to use chloride-resistant stainless steel. “My husband Jeff (not a stainless steel expert) says the stainless steel Apple Watch will keep even the sweatiest wearer out of it,” she says. Another reason to use 316L might be that it resists pitting better if it has ketchup or other sauces on it.
The plant is actually producing 316/316L, which means it is dual certified, according to Olsen; in other words, the 316L is 316 certified because it is also 316 compliant.
Our MetalMiner IndX℠ has 316/316L and related surcharges in over 25 price points including:
Apple suppliers may have taken a look at our IndX℠, the world’s largest database of stainless steel surcharges…have you?
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Post time: Mar-31-2023