Hastelloy* C276 (UNS N10276)
Introduction
A-one Alloy supplies Hastelloy C276 bars from ex-stock. And we keep
regular stock for Hastelloy sheet/plate from EU/US/Japan. We have
plenty of Hastelloy C276 ingot in our warehouse which enable us to
make fast delivery.
Hastelloy C276 is a nickel-molybdenum-chromium superalloy with an
addition of tungsten designed to have excellent corrosion
resistance in a wide range of severe environments. The high nickel
and molybdenum contents make the nickel steel alloy especially
resistant to pitting and crevice corrosion in reducing environments
while chromium conveys resistance to oxidizing media. The low
carbon content minimizes carbide precipitation during welding to
maintain corrosion resistance in as-welded structures. This nickel
alloy is resistant to the formation of grain boundary precipitates
in the weld heat-affected zone, thus making it suitable for most
chemical process application in an as welded condition.
Although there are several variations of the Hastelloy nickel
alloy, Hastelloy C-276 is by far the most widely used.
Hastelloy C-276 is widely used in the most severe environments such
as chemical processing, pollution control, pulp and paper
production, industrial and municipal waste treatment, and recovery
of sour natural gas.
Characters
l Excellent corrosion resistance in reducing environments
l Exceptional resistance to strong solutions of oxidizing salts,
such as ferric and cupric chlorides
l High nickel and molybdenum contents providing good corrosion
resistance in reducing environments
l Low carbon content which minimizes grain-boundary carbide
precipitation during welding to maintain resistance to corrosion in
heat-affected zones of welded joints
l Resistance to localized corrosion such as pitting and
stress-corrosion cracking
l One of few materials to withstand the corrosive effects of wet
chlorine gas, hypochlorite and chlorine dioxide
Application
l Pollution control stack liners, ducts, dampers, scrubbers,
stack-gas reheaters, fans and fan housings
l Flue gas desulfurization systems
l Chemical processing components like heat exchangers, reaction
vessels, evaporators, and transfer piping
l Sour gas wells
l Pulp and paper production
l Waste treatment
l Pharmaceutical and food processing equipment
Equal grades
NS334,00Cr16Ni60Mo16W4,UNS N10276,W.Nr.2.4819, NC17D
Chemical composition
Nickel...................................................Balance
Molybdenum........................................15.0-17.0
Chromium............................................14.5-16.5
Iron .....................................................4.0-7.0
Tungsten.............................................3.0-4.5
Cobalt .................................................2.5 max.
Manganese .........................................1.0 max.
Carbon.................................................0.01 max.
Vanadium............................................0.35 max.
Phosphorus ........................................0.04 max.
Sulfur ..................................................0.03 max.
Silicon .................................................0.08 max.
Standards
Rod, Bar, Wire and Forging Stock - ASTM B 462 (Rod, Bar and Forging
Stock), ASTM B 564 & ASME SB 564 (Forgings), ASTM B 574 &
ASME SB 574 (Rod, Bar and Wire),
Plate, Sheet and Strip - ASTM B 575/B 906 & ASME SB 575/SB 906
Pipe and Tube - ASTM B 622/B 829 & ASME SB 622/SB 829 (Seamless
Tube), ASTM B 626/B 751 & ASME SB 626/SB 751 (Welded Tube),
ASTM B 619/B 775 & ASME SB 619/SB 775 (Welded Pipe)
Others - ASTM B 366 & ASME SB 366 (Fittings)
Forms available
Plate, sheet, strip, wire, rod, bar, forging, tube, pipe, pipe
fitting, ring, disc, fastener
Delivery
Plenty of bar, plate, sheet in stock. For orders, delivery of bar
and forging is 2 weeks. Delivery of other products available on
request.
* Hastelloy is the registered trademarkname of Haynes
International, Inc.