Corrosion Resistant Nickel Alloy Pipe , Heat Exchangers Tube
Specifications:
Standards:ASME SB-407; ASME SB-829; ASME SB-163
Size: OD. Φ 6m~219mm; WT: 0.5mm~18mm
Length is from 1meter~6meters
Description:
BRIEF INTRODUCTION AND PROPERTIES OF INCOLOY 800H STAINLESS STEEL
Incoloy 800, 800H, and 800HT are nickel-iron-chromium alloys with good strength and excellent resistance to oxidation and carburization in high-temperature exposure. These nickel steel alloys are identical except for the higher level of carbon in alloy 800H, and the addition of up to 1.20 percent aluminum and titanium in alloy 800HT. Incoloy 800 was the first of these alloys and it was slightly modified into Incoloy 800H. This modification was to control carbon (.05-.10%) and grain size to optimize stress rupture properties. Incoloy 800HT has further modifications to the combined titanium and aluminum levels (.85-1.20%) to ensure optimum high temperature properties. The nickel alloy is dual certified (800H/HT) and combines the properties of both forms. Incoloy 800H/HT alloy was intended for high temperature structural applications. The nickel content makes the alloys highly resistant to both chloride stress-corrosion cracking and to embrittlement from precipitation of sigma phase. The general corrosion resistance is excellent. In the solution annealed condition, alloys 800H and 800HT have superior creep and stress rupture properties. Today, most suppliers, including Mega Mex, only carry the dual certified 800H/HT alloy.
FORMS:
PLATE/SHEET/PIPE/BAR/FITTINGS( flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples )
CHEMICAL COMPOSITION AND PROPERTIES
Alloy 800H (UNS N08810) Chemical Composition, %
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Ni
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Fe
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Cr
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Cu
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Ti
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Al
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C
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Mn
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S
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Si
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30.0-35.0
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39.5 min
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19.0-23.0
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.75 max
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.15-.60
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.15-.60
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.05-.10 max
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1.5 max
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.015 max
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1.0 max
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Mechanical Properties
Typical room temperature Tensile Properties of Annealed Material
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Product
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Tensile (ksi)
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.2% Yield (ksi)
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Elongation (%)
|
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INCOLOY 800H
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75-100
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30-60
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60-30
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Applications:
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Ethylene furnace quench boilers
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Hydrocarbon cracking
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Valves, fittings and other components exposed to corrosive attack from 1100-1800° F
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Industrial furnaces
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Heat-treating equipment
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Chemical and petrochemical processing
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Super-heater and re-heaters in power plants
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Pressure vessels
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Heat exchangers
Competitive Advantage:
1.Nitrate condenser---Corrosion resistance of Nitric acid
2.Steam heating pipes--Very good mechanical properties
3.Heat up element tube--Very good mechanical properties
Product Tags:
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Corrosion Resistant Nickel Alloy Pipe , Heat Exchangers Tube Images
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