Share
Page 1 of 2 12 LastLast
Results 1 to 20 of 29

Thread: Need an online source for Stainless??

  1. #1

    Default Need an online source for Stainless??

    I've tried locally and the price is sky high..
    I've checked Metalsdepot.com and the price is better but expensive still.

    I'm needing 4' of 1.5" Stainless round bar.

    I priced Steel at $33, then I priced the Stainless and it was $135!!
    Why is so much more expensive?
    PowerTig 250EX
    Power I-MIG 200
    Power Plasma 50
    It's what you learn, After you know it all, that counts!

  2. #2
    Join Date
    Oct 2010
    Location
    Northern Virginia
    Posts
    1,253

    Default

    Here's a site: looks like you can get a 10" - 12" drop in 316 stainless for $38
    http://www.onlinemetals.com/merchant...id=7&top_cat=1

    Other choices available at that site, too, if you need something other than 316.

    What are you working on?
    DaveO
    Oxweld oxy acet gear
    IMIG 200
    PowerTIG 210 EXT... Amazing!

  3. #3

    Default

    Thanks for the link!

    What is the difference in these? I've never worked with Stainless
    Round bar t-303
    round bar t-304l
    round bar t-316l
    round bar t-321
    round bar t-347
    round bar t-410
    round bar t-416

    The 303 and 304 is around $80 for three feet which is all I reall need.

    I will be running this bar through some brass bushings so it doesn't need to be anything great, just stainless.
    PowerTig 250EX
    Power I-MIG 200
    Power Plasma 50
    It's what you learn, After you know it all, that counts!

  4. #4

    Default

    I am buying all the materials I need to build the link below...

    http://simage1.sportsmansguide.com/a.../134916_ts.jpg
    PowerTig 250EX
    Power I-MIG 200
    Power Plasma 50
    It's what you learn, After you know it all, that counts!

  5. #5
    Join Date
    Jun 2011
    Location
    Charleston, South Carolina
    Posts
    50

    Default

    You want 304 SS.
    410 and 416 are heat treatable.
    303 is easer to machine,
    Brian Scott
    225LX
    Speedglass 9002v helmet
    19" Shop Fox band saw
    Ingersoll Rand air compressor

  6. #6
    Join Date
    Oct 2010
    Location
    Northern Virginia
    Posts
    1,253

    Default

    The numbers there identify the specific alloy of stainless. Onlinemetals.com has an outline of different types of stainless, lots of good info here. As Brian's note says, 304 is most common.
    http://www.onlinemetals.com/stainlessguide.cfm
    DaveO
    Oxweld oxy acet gear
    IMIG 200
    PowerTIG 210 EXT... Amazing!

  7. #7

    Default

    Appreciate all the help!
    I just read the difference between them all and I ordered the 304.

    Again, Thanks for the link to Onlinemetals.com, I saved some money on there!!
    PowerTig 250EX
    Power I-MIG 200
    Power Plasma 50
    It's what you learn, After you know it all, that counts!

  8. #8

    Default

    and the L just means low carbon
    Journeyman welder
    250EX
    Power plasma 60
    horizontal band saw
    Miller digital elite 'wicked' lid

  9. #9

    Default

    Quote Originally Posted by jerky View Post
    and the L just means low carbon
    Does Carbon make the Stainless harder?
    Why would you want low carbon over normal Stainless? Just curious
    PowerTig 250EX
    Power I-MIG 200
    Power Plasma 50
    It's what you learn, After you know it all, that counts!

  10. #10
    Join Date
    Jun 2011
    Location
    Charleston, South Carolina
    Posts
    50

    Default

    Not sure about harder, but 316 is slightly stronger than 316L.

    The "L" or low carbon helps to lessen cracking when welding.
    347, 321, 316L are common in the aerospace world along with Inconel and Hastelloy.
    Unless your building a space shuttle or a submarine stick with 304.
    Brian Scott
    225LX
    Speedglass 9002v helmet
    19" Shop Fox band saw
    Ingersoll Rand air compressor

  11. #11

    Default

    Because it has less carbon, it will help preventing carbide precipitation.
    Journeyman welder
    250EX
    Power plasma 60
    horizontal band saw
    Miller digital elite 'wicked' lid

  12. #12

    Default

    Quote Originally Posted by jerky View Post
    Because it has less carbon, it will help preventing carbide precipitation.
    is that rust?
    PowerTig 250EX
    Power I-MIG 200
    Power Plasma 50
    It's what you learn, After you know it all, that counts!

  13. #13

    Default

    So when I weld the 304 Stainless Bar to a piece of 3/16" mild Steel plate with a 309L filler rod.... What's the best way to do it?

    I have welded Stainless in night class but only for 30 mins. or so

    Do I weld a little and stop to let it cool or weld fast and get it all done quickly!?!?
    PowerTig 250EX
    Power I-MIG 200
    Power Plasma 50
    It's what you learn, After you know it all, that counts!

  14. #14
    Join Date
    Oct 2010
    Location
    Northern Virginia
    Posts
    1,253

    Default

    Quote Originally Posted by CGCINC View Post
    is that rust?
    Here's a quick write-up on carbide precipitation from the ESAB site:
    http://www.esabna.com/EUWeb/AWTC/Lesson5_10.htm
    Note: "austenitic" refers to the 300 series of stainless steels.

    5.4.1 Carbide Precipitation - Many of the austenitic stainless steels are subject to the phenomenon of carbide precipitation. At elevated temperatures in the range of 800-1600F, the carbon content in excess of 0.02% migrates to the grain boundaries of the austenitic structure where it reacts with chromium to form chromium carbide. If the chromium is tied up with the carbon, it is not available for corrosion resistance. Thus, when the steel with carbide precipitation is exposed to a corrosive environment, intergranular corrosion results, allowing the grain boundaries to be eaten away. Figure 8 shows how intergranular corrosion may take place in a tank holding a corrosive liquid. Notice that the corrosion takes place only in the heat affected zone on the inside where the corrosive media is located, and there is no evidence of failure on the outside.

    5.4.1.1 Carbide precipitation has no other effect on the steel, however, other than loss of corrosion resistance in the heat affected zone. During welding, the heat-affected zones along the sides of the weld in austenitic stainless steel are exposed to the temperatures that cause carbide precipitation.
    DaveO
    Oxweld oxy acet gear
    IMIG 200
    PowerTIG 210 EXT... Amazing!

  15. #15
    Join Date
    Oct 2010
    Location
    Northern Virginia
    Posts
    1,253

    Default

    Quote Originally Posted by CGCINC View Post
    So when I weld the 304 Stainless Bar to a piece of 3/16" mild Steel plate with a 309L filler rod.... What's the best way to do it?
    There's a section here also about welding stainless to carbon steel, in section 5.2:
    http://www.esabna.com/EUWeb/AWTC/Lesson5_7.htm

    ...but I'm officially out of my depth now, so I will watch and learn as the experts respond.
    DaveO
    Oxweld oxy acet gear
    IMIG 200
    PowerTIG 210 EXT... Amazing!

  16. #16

    Default

    Thanks dave, thats what i was gonna say when i got home, ill see if my books say anything else on the matter
    Journeyman welder
    250EX
    Power plasma 60
    horizontal band saw
    Miller digital elite 'wicked' lid

  17. #17

    Default

    Quote Originally Posted by DaveO View Post
    There's a section here also about welding stainless to carbon steel, in section 5.2:
    http://www.esabna.com/EUWeb/AWTC/Lesson5_7.htm

    ...but I'm officially out of my depth now, so I will watch and learn as the experts respond.
    Wow, who knew there was so much to welding a few pieces of metal together.. lol

    Thanks for all the info guys... Time to read and learn before I screw this up!
    PowerTig 250EX
    Power I-MIG 200
    Power Plasma 50
    It's what you learn, After you know it all, that counts!

  18. #18

    Default

    This is off of one of the links above...
    Carbide precipitation has no other effect on the steel, however, other than loss of corrosion resistance in the heat affected zone.

    So I'm taking that as it's ok to weld it like I would normally, But it could rust at the heat affected zone. This equipment will be in my basement and also I can paint up a half inch onto the Stainless to protect it.
    As long as Carbide precipitation will not effect the strength of the weld, I'm ok ?
    PowerTig 250EX
    Power I-MIG 200
    Power Plasma 50
    It's what you learn, After you know it all, that counts!

  19. #19
    Join Date
    Jun 2011
    Location
    Charleston, South Carolina
    Posts
    50

    Default

    Are you welding stainless to non-stainless
    Brian Scott
    225LX
    Speedglass 9002v helmet
    19" Shop Fox band saw
    Ingersoll Rand air compressor

  20. #20

    Default

    Quote Originally Posted by brianscott View Post
    Are you welding stainless to non-stainless
    Yes, Stainless to some 1/4" plate I have lying around
    PowerTig 250EX
    Power I-MIG 200
    Power Plasma 50
    It's what you learn, After you know it all, that counts!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •