Stainless steel questions
09-14-2011, 10:28 PM, (This post was last modified: 09-14-2011, 10:34 PM by szzuk.)
Stainless steel questions
How would I best change the thickness of stainless steel? For example, if I bought some with a thickness of 0.25mm how would I best change this to 0.23mm. I would like to test 0.21mm - 0.24mm but it is only available in 0.20mm or 0.25mm.

How do I test the hardness of stainless steel? For example if I bought some that was 0.25mm, how would I know it was half hard, full hard etc. with more accuracy than a bending it by hand.

Ultimately the purpose of this is to make a stainless steel disc with a resonant frequency of 50KHz for a piezo buzzer. Changing the diameter is relatively easy so doing that isn't a major problem but I think I may need for example 15mm diameter disc with a thickness of 0.22mm and a hardness of "xyz". The stainless grade is 304/316.

09-19-2011, 05:22 PM,
RE: Stainless steel questions
Hi szzuk

For hardness testing, I think a microhardness tester using Vickers or Knoop.

As for reducing thickness, I think Rolling sheet metal work will be required.

09-19-2011, 09:29 PM,
RE: Stainless steel questions
Hi Gordon,

Do you know if I could buy a hardness testing kit relatively cheaply? I don't need enormous accuracy, probably £100 or $150 would be the limit. The parts I need to test are 15mm diameter and thickness <0.3mm so I think something suitable may be available.



Possibly Related Threads…
Thread Author Replies Views Last Post
  Combination of aluminum and stainless steel davehetfield 2 1,160 04-20-2021, 05:36 PM
Last Post: Vadim Verlotski
  i have some questions about the general systems of of organizations theory in the ... elreydelaswasas1 0 1,019 11-17-2019, 05:26 PM
Last Post: elreydelaswasas1
  Grinding questions and my personal information Rage2371 12 4,525 05-25-2019, 10:47 AM
Last Post: velocity
  Oxy-fuel wire spray gun questions hje 5 2,830 01-26-2019, 05:58 PM
Last Post: plasmajet1990
  Surface hardening [steel + steel alloys] haggis 1 2,783 07-09-2017, 12:42 PM
Last Post: plasmajet1990
  Question about stainless steel and wear/abraison Thefyn 9 5,397 01-24-2017, 03:48 PM
Last Post: Vadim Verlotski
  WC/Co/Cr on Stainless steel 420 coating Arturas 2 3,471 06-01-2016, 03:53 PM
Last Post: shantanu
  Noob questions Nixx 14 8,348 08-06-2014, 09:15 AM
Last Post: Parat Tech
  Coating to Stainless Steel mesh Robert Alford 6 8,946 05-27-2014, 08:15 AM
Last Post: Berly
  Explain hardness of stainless steel to me? antknee 5 64,574 01-30-2014, 08:14 AM
Last Post: jigneshb17
  Stainless steel pipe coating larsen 1 5,327 09-07-2013, 01:23 PM
Last Post: Ryley5566
  Silicone based sealer for stainless steel arc spray pappabearlee 6 7,432 11-30-2012, 01:58 PM
Last Post: MichiganMan
  Questions on Metco 4MP feeder SurfaTec 5 6,918 10-31-2012, 10:53 AM
Last Post: Spraytube
  Thermal Spray misc questions powerman 11 20,303 07-15-2011, 08:12 AM
Last Post: kschewe
  Corundum (Sapphire) coating on stainless steel Fadi 1 7,493 02-19-2010, 08:56 AM
Last Post: drramc

Users browsing this thread: 1 Guest(s)

Surface Engineering Forum Sponsor - Alphatek Hyperformance Coatings Ltd