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  1. rolledalloy

    Best Alloy for SS mixer blades?

    With respect to superduplex the following information on ZERON 100 in erosion corrosion may be helpful. Typically the superduplex grades around 22 Rockwell C so they do offer higher hardness levels than austenitic counterparts such as AL-6XN (88 Rockwell B) which offer similar corrosion...
  2. rolledalloy

    Material high conditions

    Alloy 718 requires an aging treatment to obtain high strength. At 1400F you are above the temperature at which it is commonly aged (double age treatment at 1325/1150F). We typically suggest it be limited to 1300F and below where its strength properties remain high. Also, 718 is easy enough to...
  3. rolledalloy

    Fastener material for indoor pools

    Correction on the AL-6XN alloy it is stocked in round bar, pipe and fittings along with the product forms mentioned. Fasteners can be sourced in AL-6XN from a number of fastener manufacturers. Superduplex stainless steels like Zeron 100, or S32750 have also been used successfully if added...
  4. rolledalloy

    Marine Grade Stainless Steel

    Zeron 100 is another superduplex stainless that is commonly used for offshore applications and seawater RO units. Superduplex and 6-Mo superaustenitics do have higher strength than 316L so keep that in mind when designing pressure applications you might be able to reduce the wall thicknesses...
  5. rolledalloy

    Experience with Alloy 803

    I don't have much history on 803, but I assume that you have had some conversations with Special Metals since it is something they developed. You might also contact Sandvik about their 35%Ni-25%Cr grade 353MA, which is similar. They do have some studies on 353MA tube materials used in ethylene...
  6. rolledalloy

    Autenitic stainless steel

    www.ssina.com is a good website for stainless. SSINA is the Specialty Steel Industry of North America.
  7. rolledalloy

    2205 Duplex vs Carbon steel

    Depending on the quantity, AL 2003 is a leaner duplex than 2205 that still offers the strength, pitting, and chloride SCC advantages that 2205 has over 316L. Allegheny Ludlum has worked with some tubing manufactures to supply strip for welded tubes. It should come in lower cost than 2205. In...
  8. rolledalloy

    duplex 2205- max chloride level = ?

    One of the longest running FGD installations of 2205 material was the First Energy Burger Plant in Ohio. 2205 was used in the 50MW Powerspan trial unit there for the FGD and WESP. This has been operating since 2004. Design chlorides were 10,000-15,000 ppm Cl. To my knowledge there have been...
  9. rolledalloy

    Alloy 31

    Corrosion Materials in Baker, LA was handling this grade for a time. 1-800-535-8032. Contact Bubba Noce.
  10. rolledalloy

    UNS 32205

    I would contact Avesta Welding in Orchard Park, NY and see if they can offer assistance specific to your NAVSEA requirements. They make E2209 fillers and their former parent company helped develop the base metal.
  11. rolledalloy

    SS Selection for Hot Water Storage w/ Well Water

    There are numerous manufacturers in Europe using duplex for their water heaters varying from LDX 2101 to 2205. AL 2003 would also fit in between the two in performance. Data sheets on all three alloys are available at www.rolledalloys.com. We have seen some SCC in commercial water heaters in...
  12. rolledalloy

    Wall Thickness Estimation in Pipes

    RA 253 MA is only approved by the ASME boiler and pressure vessel code to 1650F (900C)at that temperature the allowable stress value for plate is only 710 psi. Note this is lower than the strength criteria you are using at 1800F. 617 is much stronger than RA 253 MA at these temperatures. Like...
  13. rolledalloy

    304 vs 304L vs Dual rated 304/L as it applies to ASME code

    Since you are operating at temperatures in the creep range there is the possibility of dual certified 304/304H (UNS 30400/30409). This would ensure a minimum carbon content and a minimum grain size to provide adequate creep strength. It is available in plate form. Other product forms could...
  14. rolledalloy

    Welding in heat treat area...

    Flexible racking is commonly used for heat treating applications. A common tray design is a serpentine grid http://www.qual-fab.net/serpentine-trays.htm These use flat bar and round bars to pin the rack together. As a result it can support a load, but the individual bars can expand and...
  15. rolledalloy

    SS 316 vs SS 2205

    Pricing is a little on the low side on LDX 2101 and probably 2003. LDX 2101 and 2003 now with nickel hitting $16 this week has dropped with respect to 304 and 316 which have more nickel. I can't comment on 2003 specifically but Allegheny has been promoting it more strongly as an alternate to...
  16. rolledalloy

    lean duplex

    LDX 2101 sheet is made by Outokumpu in Sweden, plate for the North American Market is produced in New Castle, Indiana. To this point welded pipe is being made at the mill in Wildwood, FL. Bar is made at the Richburg, SC mill.
  17. rolledalloy

    lean duplex

    Ed is correct. All pipe is made to the ASTM A-790 specification. Two major orders. One for a hot process water piping system in a synthetic rubber plant. It replaced 304L that was suffering underinsulation cracking in less than 9 months time. Roughly 500 feet is installed Another is for...
  18. rolledalloy

    lean duplex

    It has been a while since I replied. Rolled Alloys is stocking 1" to 4" SCH 10 pipe currently. It is all welded.
  19. rolledalloy

    K-Monal Shaft material pitting

    It is my understanding that in stagnant or slow moving seawater the Monel K-500 is prone to fouling/pitting. Flowing seawater is less severe. Also the Monel type materials are more sensitive to sulfides in seawater than are stainless steels. What type of stainless was used previously? Do you...
  20. rolledalloy

    Suppliers of material number 1.4306

    1.4306 is roughly 304L stainless. You can go to http://www.stainless-steel-world.net. There should be several stainless pipe and fitting suppliers listed on the website.

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