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The Home of HASTELLOY® and
HAYNES® Alloys

For Severely Sulfidizing and Other Aggressive Environments

HAYNES® HR-160® alloy has excellent resistance to sulfidation and chloride attack in both reducing and oxidizing atmospheres. The alloy also has exceptionally good resistance to oxidation, hot corrosion, carburization, metal dusting, nitridation and corrosion at corrosion attack by low melting point compounds such as those formed by phosphorus, vanadium, and other impurities. HR-160 alloy utilizes high chromium and silicon contents to form a protective oxide scale which renders the alloy resistance to various forms of high-temperature corrosion.

Current Applications


Waste Incineration

Thermocouple Protection Tubes

Gas Sampling Probes

Tube Shields

Feed Chutes Combustion Chamber Liners & Internals

Refractory Anchors

Dampers

Others

Coal and Oil Fired Boilers & Fluidized Bed System

Burners

Coal Feed Chutes

Expansion Joints

Others

Sulfur Recovery Plants

Burners

Tube Shields in Waste Heat Recovery Boilers

Chemical Plant

Recuperators and Heat Exchangers

Claciners

Other Application

Cement Kilns & Other High-temperature

Furnaces

Pulp and Paper Recovery Boilers

Coal Gasification

Industrial Gas Turbines

Nominal Composition

Nickel: Balance
Cobalt: 29
Chromium: 28
Iron: 2 max.
Molybdenum: 1 max.
Silicon: 2.75
Tungsten: 1 max.
Manganese: 0.5
Titanium: 0.5
Carbon: 0.005

Sulfidation Resistance

Lab Tests at 1600°F (870°C)/215 h in Ar-5%h2-5%CO-1%CO2-0.15%H2S Po2= 3 x 10-19 atm, Ps2= 0.9 x 10-6 atm

Alloy Description

HAYNES HR-160 alloy is a Ni-Co-Cr-Si alloy with a stable austenitic structure. The alloy is readily fabricated, and may be welded by gas-tungsten-arc (TIG) or gas-metal-arc (MIG) techniques. HR-160 filler metal is recommended for joining HR-160 alloy. When HR-160 alloy is welded to other alloys, such as stainless steels, 556® filler metal should be used. HAYNES HR-160 alloy is available as plate, sheet, strip, billet, bar, wire, pipe, and tubing.

Typical Tensile Properties, Plate

Test Temperature 0.2% Yield Strength Ultimate Tensile Strength Elongation Reduction of Area
°F °C ksi MPa ksi MPa % %
70 20 45.6 315 111.2 765 68 73
1000 540 25.5 175 81.8 565 76 69
1200 650 25.7 175 75.8 525 70 67
1400 760 24.7 170 62.1 430 73 64
1600 870 22.41 150 38.3 265 85 84
1800 980 10.8 74 20.4 140 90 98
2000 1095 5.0 34 10.8 74 88 98
2100 1150 2.3 16 6.0 41 113 94
2200 1205 1.6 11 4.4 30 110 94
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