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stainless

Stainless steel: 276  is any one of a group of ferrous alloys that contain a minimum of approximately 11% chromium,: 3  a composition that prevents the iron from rusting and also provides heat-resistant properties.: 3  Different types of stainless steel include the elements carbon (from 0.03% to greater than 1.00%), nitrogen, aluminium, silicon, sulfur, titanium, nickel, copper, selenium, niobium, and molybdenum.: 3  Specific types of stainless steel are often designated by their AISI three-digit number, e.g., 304 stainless. The ISO 15510 standard lists the chemical compositions of stainless steels of the specifications in existing ISO, ASTM, EN, JIS, and GB standards in a useful interchange table.Stainless steel's resistance to rusting results from the presence of chromium in the alloy, which forms a passive film that protects the underlying material from corrosion attack, and can self-heal in the presence of oxygen.: 3  Corrosion resistance can be increased further by the following means:

increase chromium content to more than 11%
add nickel to at least 8%
add molybdenum (which also improves resistance to pitting corrosion)The addition of nitrogen also improves resistance to pitting corrosion and increases mechanical strength. Thus, there are numerous grades of stainless steel with varying chromium and molybdenum contents to suit the environment the alloy must endure.Resistance to corrosion and staining, low maintenance, and familiar luster make stainless steel an ideal material for many applications where both the strength of steel and corrosion resistance are required. Moreover, stainless steel can be rolled into sheets, plates, bars, wire, and tubing. These can be used in cookware, cutlery, surgical instruments, major appliances, vehicles, construction material in large buildings, industrial equipment (e.g., in paper mills, chemical plants, water treatment), and storage tanks and tankers for chemicals and food products.
The biological cleanability of stainless steel is superior to both aluminum and copper, having a biological cleanability comparable to glass. Its cleanability, strength, and corrosion resistance have prompted the use of stainless steel in pharmaceutical and food processing plants.

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  1. S

    Stainless Steel Sink - Clips Needed ? - silicone seal

    Just had my 40mm laminate kitchen worktops replaced. The chippy cut the sink cut-out too tight for the clips, then left for another job. The plumber could only get the clips on one side so put them at the back and used a silicone bead to seal. (The sink being re-inserted had an intact cleaned-up...
  2. B

    Improving the sound/feel of a relatively thin stainless steel sink

    I've recently installed a new stainless steel sink and drainer. It looks great, but it isn't the thickest SS available, and consequently, the drainer flexes somewhat and the bowl sounds pretty tinny in use. So, I have some Marley Sealtite flashing -- a 100mm wide strip of some thin metal with...
  3. quality

    Stainless inset kitchen sink

    Kitchen are not my specialty first and foremost I have to replace a damaged stainless steel inset kitchen sink, single bowl standard type as I thought with right hand drainer. The current work top has a cutout of 490mm x 920mm. The actual external (work top surface) dimensions are 520mm x 950mm...
  4. R

    Indirect cylinder recommendations

    Looking to install a 250L stainless indirect cylinder as part of a barn conversion. Any recommendations as to good brands e.g. RM, Main, Santon, Gledhill etc? They all seem well specified these days but do some have better flanges or general construction? Rather pay a few £ more now to ensure...
  5. D

    Stainless hex boilers

    Evenong chaps boiler replacemant job ive gotta do customer has requested a stainless hex any recommendations, heat only around 15 kw, eco blue vallient or viessman , Cheers team
  6. B

    Vaillant, Ideal, Worcester: 10 year warranties!

    Okay, so coincidentally, the two quotes I've had in so far for a replacement combi have happened to have been Worcester approved fitters, but I'm not ruling out other makes, just have to potentially find recommended approved fitters. So far, the general feel of it seems to be £2100-2300 for a...
  7. M

    Soldering on to stainless steal.

    I fitted a replacement Heatrae Sadia Express 7 water heater some time ago. The old one had an extended spout but it was not compatible with the new one so a new extended spout was ordered. I fitted this spout, there is a pushfit fitting underneath for the spout, it felt a bit loose but seemed to...
  8. phil hair

    drilling stainless

    hi, got to install a new shower next week. to cover up the hole that will be left, they asked if i could put a piece of mirrored stainless in, have the shower attached to it, pipes coming through,ect. i thought this was a great idea, until i reralisec drilling a small hole can be a,err...
  9. D

    Stainless steel pipe - which fittings?

    Hi, I'm making a hot tub and want to heat the water indirectly by running a couple of lengths of pipe along the bottom of the tub. I'm heating indirectly because of the chemicals and because I'm taking the heat from the common buffer store. I thought about pex but I'm not sure that plastic...
  10. M

    Pvc rain water downpipe to cast iron

    I want to join a pvc downpipe 68mm with cast iron pipe but can't find anything online. I have seen a coupler which as stainless steel fasteners but they don't look appealing on show There are few decent ones for soil stacks that sit in the cast iron pipe but I've not seen anything for downpipes...
  11. C

    Stainless steel hot water cylinder

    Three years ago I installed a new 50 gallon cold water tank in my loft on a platform 54 inches above the ceiling and a new stainless steel 140 litre hot water cylinder which had 22mm welded flanges for inlet and outlets. I then built a shower room in a spare bedroom fed by a Salamander...
  12. JCplumb

    Hand wash basin in a chip shop?

    Hello chaps, I've got a job to fit a hand wash basin in a chippy near me. Just wondering if anyone knows the regs, or HSE rules about these? They want it a few inches from the main sink in a food prep area, there is one in the next room that they use and they have told me they won't ever use...
  13. F

    Vessel

    Just wondering, I have a spare 18l potable vessel, can I use this for heating?? i wouldn't do it the other way but surely I don't see why you can't. Just seeing what your thoughts are?? cheers
  14. A

    ESSEX flange for a stainless steel cylinder?

    Do I have any other options as the cylinder has a narrow outlet and a Surrey or Salamander type doesn't fit unfortunately? Anything I should be wary of when fitting as I've not cut a SS cylinder before?
  15. I

    Pipe slices for stainless

    Iv been fitting heating in a area where all the houses have stainless pipe. Does any one have pipe slices for stainless? I'm getting fed up using a hacksaw
  16. D

    best hot water cylinder copper or stainless steel

    hi guys iam after a new cylinder whats the best to get copper or stainless steal also whats the going rat to replace cylinder labour thanks anyone in devon
  17. R

    Gledhill Stainless lite unvented cylinder imploded when replacing valve to dishwasher

    While fitting a new integrated dishwasher I had to turn off the mains supply to replace a faulty isolation valve. All went well. Water back on and carried on altering doors and plinth etc. Around half an hour later water started to drip through the ceiling at the top of the stairs. I got up...
  18. R

    Stainless steel sit on sinks

    Hi Got to fit one of these. I couldn't see how it went on, I take it there are clips somewhere? Any advice on fitting these please? Thx Rct
  19. M

    Stainless steel sink install?

    Hi all. I don't normally fit these sinks but recently been doing them on a council job. The sinks are supplied with the rubber strip that goes underneath the edges. Do you lot bother using the rubber/sponge strip or just silicone? What do you treat the edges of the work top with on the cut out...
  20. Scott_D

    Stainless steel Mapress in the ground

    I was at a newish plant room the other week where they had used 4" stainless steel gas pipework in the ground connecting to mdpe. There is little to no info of Mapress and gas in any books I have. It's not the way I would have done it but what do you think?
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