HAYNES® HR-160® alloy Applications in Waste Incinerators Tech Brief

Applications in Waste Incinerators

HAYNES® HR-160® alloy provides the best combination of resistance to harsh, high-temperature environments and life cycle cost effectiveness of any commercially available alloy. Components produced from HR-160® alloy have exhibited outstanding performance in waste incineration applications. Field trials have demonstrated that component life extensions greater than 10X are possible with direct material substitution. HR-160® alloy utilizes high chromium and silicon contents to promote the formation of a protective oxide scale which resists attack from sulfur, vanadium, chlorides, and other salt deposits. This makes the alloy ideally suited for waste incinerator components operating up to 2200°F (1204°C), such as T/C protection tubes, dampers, tube shields, tube supports, thermos wells, combustion chambers, ducts, heat exchangers, and vortex finders.

HAYNES® HR-160® Alloy Performance Capability
Incinerator Type Field Test Conditions Performance as Compared to Current Material
Municipal Waste 800-2000°F (982-1093°C);sulfur, chlorides, K, Zn, etc.1300-1400°F (704-760°C);sulfur chlorides, K, Zn, Pb >17x better than stainless steels9x better than 62512x better than 82515x better than 304>12x better than 446
Industrial Waste 1600-1700°F (871-927°C);sulfur chlorides, K, etc >20x better than stainless steels
Hospital Waste 1200-1400°F (649-760°C);sulfur chlorides, Zn, etc. >7x better than 304 and 316
Chemical Waste 900°F (482°C);Pb, K, S, P, Zn, and Ca 15x better than carbon steel and 600

Product Description

HAYNES® HR-160® alloy is a Ni-Co-Cr-Si alloy with a stable austenitic structure. The alloy is easily fabricated using methods such as gas-tungsten-arc welding (TIG) process or gas-metal-arc welding (MIG) process. 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.

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

Field Performance- Municipal Waste Incineration

Alloy Metal Loss Maximum Metal Affected
mils mm mils mm
HR-160® 0 0 2.0 0.05
556® 9.5 0.24 11.0 0.28
625 16.5 0.42 17.5 0.44
188 17.0 0.43 18.5 0.47
825 21.5 0.55 24.5 0.62
304SS 28.0 0.72 29.5 0.75
446SS >23.5
0.60c
>23.5
0.60c
Carbon Steel 27.1 0.69 30.0 0.76

(a) test rack was exposed at 1300-1400F (704-760C) for 2 months
(b) metal loss + maximum internal penetration
(c) sample was perforated

Comparative Stress-Rupture Strengths

°F °C HR-160® RA333 800HT RA330 253 MA RA85H 309 SS 310 SS
1100 593 22.9 25.0
1200 649 15.6 16.5 17.5 11.0 14.0 12.0 16.0 9.3
1300 764 10.8 12.0 11.0 8.5
1400 760 7.4 9.2 7.3 4.3 5.2 5.0 5.45 3.9
1500 816 5.1 5.7 5.2 3.75
1600 871 3.6 3.1 3.5 1.7 2.5 2.1 1.86 1.65
1700 927 2.5 1.8 1.9 1.65
1800 982 1.8 1.05 1.2 0.63 1.15 0.9 0.63 0.69

*ksi can be converted to MPa (megapascals) by multiplying by 6.895