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...
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...
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...
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...
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...
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...
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...
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.
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...
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...
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...
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...
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...
