Haynes HR-120®, 2.4854, UNS N08120, NiFe33Cr25Co - nickel-alloy

Haynes HR-120®, 2.4854, UNS N08120, NiFe33Cr25Co - nickel alloy according to ASTM B407-22 and other standards

Haynes® HR-120®, 2.4854 – description

Haynes® HR-120® (UNS N08120) is a Ni-Fe-Cr solid-solution-strengthened heat-resistant alloy with high strength and excellent carburization and sulfidation resistance. It has various alloying additions -most notably Tungsten, Niobium and Nitrogen to improve high-temperature strength and to resist pitting and crevice corrosion, and Aluminum to improve oxidation and sulfidation resistance. In a result, the alloy strength at 1095°C is significantly higher, even in comparison with Ni–Cr alloys. Despite this, it is considered an economical alloy, and that's because of its high iron content. It is readily welded and formed hot or cold.

Applications

Used in waste incineration plants, mineral processing, land-based gas turbines, heat-treating fixtures and industrial heating applications for radiant tubes, recuperators, furnace muffles, retorts, heat treatment baskets, wire cloth, furnace conveyor belts, superheaters etc.

Physical and Tensile Properties

Room temperature physical properties:

• Density: 8.07 g/cm³
• Melting temperature: 1300°C

High-Temperature Coefficient of Thermal Expansion, from 20°C to:

• 100°C: 14.3 μm/m⋅K
• 200°C: 14.9 μm/m⋅K
• 300°C: 15.3 μm/m⋅K
• 400°C: 15.8 μm/m⋅K
• 500°C: 16.1 μm/m⋅K
• 600°C: 16.4 μm/m⋅K
• 700°C: 16.9 μm/m⋅K
• 800°C: 17.3 μm/m⋅K
• 900°C: 17.6 μm/m⋅K
• 1000°C: 17.8 μm/m⋅K

Specific Heat Capacity:

• 20°C: 467 J/kg⋅K
• 100°C: 483 J/kg⋅K
• 200°C: 500 J/kg⋅K
• 300°C: 522 J/kg⋅K
• 400°C: 531 J/kg⋅K
• 500°C: 558 J/kg⋅K
• 600°C: 607 J/kg⋅K
• 700°C: 647 J/kg⋅K
• 800°C: 655 J/kg⋅K
• 900°C: 660 J/kg⋅K
• 1000°C: 663 J/kg⋅K
• 1100°C: 667 J/kg⋅K

Electrical Resistivity:

• 100°C: 1.052 μΩ·m
• 200°C: 1.078 μΩ·m
• 300°C: 1.125 μΩ·m
• 400°C: 1.167 μΩ·m
• 500°C: 1.193 μΩ·m
• 600°C: 1.214 μΩ·m
• 700°C: 1.231 μΩ·m
• 800°C: 1.245 μΩ·m
• 900°C: 1.257 μΩ·m
• 1000°C: 1.266 μΩ·m
• 1100°C: 1.278 μΩ·m
• 1200°C: 1.287 μΩ·m

Thermal Diffusivity:

• 20°C: 30.4 10^–6⋅m²/s
• 100°C: 32.4 10^–6⋅m²/s
• 200°C: 34.8 10^–6⋅m²/s
• 300°C: 37.2 10^–6⋅m²/s
• 400°C: 39.7 10^–6⋅m²/s
• 500°C: 42.2 10^–6⋅m²/s
• 600°C: 44.7 10^–6⋅m²/s
• 700°C: 46.9 10^–6⋅m²/s
• 800°C: 48.1 10^–6⋅m²/s
• 900°C: 48.8 10^–6⋅m²/s
• 1000°C: 50.7 10^–6⋅m²/s
• 1100°C: 52.9 10^–6⋅m²/s
• 1200°C: 54.5 10^–6⋅m²/s

Thermal Conductivity:

• 20°C: 11.4 W/m · K
• 100°C: 12.7 W/m · K
• 200°C: 14.1 W/m · K
• 300°C: 15.4 W/m · K
• 400°C: 17.1 W/m · K
• 500°C: 18.7 W/m · K
• 600°C: 21.0 W/m · K
• 700°C: 23.3 W/m · K
• 800°C: 24.9 W/m · K
• 900°C: 26.2 W/m · K
• 1000°C: 28.0 W/m · K
• 1100°C: 29.6 W/m · K

Dynamic Modulus of Elasticity:

• 20°C: 198 GPa
• 100°C: 194 GPa
• 200°C: 187 GPa
• 300°C: 179 GPa
• 400°C: 172 GPa
• 500°C: 165 GPa
• 600°C: 158 GPa
• 700°C: 151 GPa
• 800°C: 143 GPa
• 900°C: 136 GPa
• 1000°C: 129 GPa

Shear Modulus:

• 20°C: 76 GPa
• 100°C: 74 GPa
• 200°C: 71 GPa
• 300°C: 68 GPa
• 400°C: 65 GPa
• 500°C: 62 GPa
• 600°C: 59 GPa
• 700°C: 56 GPa
• 800°C: 53 GPa
• 900°C: 50 GPa
• 1000°C: 47 GPa

Poisson's Ratio:

• 20°C: 0.31
• 100°C: 0.31
• 200°C: 0.32
• 300°C: 0.32
• 400°C: 0.32
• 500°C: 0.33
• 600°C: 0.33
• 700°C: 0.34
• 800°C: 0.34
• 900°C: 0.35
• 1000°C: 0.36

Annealed Plate, Sheet and Strip Tensile Properties according to ASTM B409

• Yield strength: >276 MPa
• Tensile strength: >621 MPa
• Elongation: >30 %

Forgings Tensile Properties according to ASTM B564

• Yield strength: >276 MPa
• Tensile strength: >621 MPa
• Elongation: >30 %

High-temperature Tensile Properties of solutioned Sheet:

• 20°C:
  • Yield strength: 328 MPa
  • Tensile strength: 718 MPa
  • Elongation: 46.3 %
• 540°C:
  • Yield strength: 195 MPa
  • Tensile strength: 552 MPa
  • Elongation: 53.6 %
• 650°C:
  • Yield strength: 186 MPa
  • Tensile strength: 507 MPa
  • Elongation: 55.0 %
• 760°C:
  • Yield strength: 182 MPa
  • Tensile strength: 396 MPa
  • Elongation: 48.0 %
• 870°C:
  • Yield strength: 170 MPa
  • Tensile strength: 225 MPa
  • Elongation: 67.2 %
• 980°C:
  • Yield strength: 91 MPa
  • Tensile strength: 118 MPa
  • Elongation: 74.7 %
• 1100°C:
  • Yield strength: 44 MPa
  • Tensile strength: 61 MPa
  • Elongation: 56.1 %

High-temperature Tensile Properties of solutioned Plate:

• 20°C:
  • Yield strength: 322 MPa
  • Tensile strength: 719 MPa
  • Elongation: 49.8 %
  • Reduction of Area: 63.3 %
• 540°C:
  • Yield strength: 186 MPa
  • Tensile strength: 554 MPa
  • Elongation: 58.7 %
  • Reduction of Area: 57.7 %
• 650°C:
  • Yield strength: 179 MPa
  • Tensile strength: 503 MPa
  • Elongation: 55.4 %
  • Reduction of Area: 59.6 %
• 760°C:
  • Yield strength: 177 MPa
  • Tensile strength: 412 MPa
  • Elongation: 51.6 %
  • Reduction of Area: 65.6 %
• 870°C:
  • Yield strength: 182 MPa
  • Tensile strength: 247 MPa
  • Elongation: 71.1 %
  • Reduction of Area: 72.3 %
• 980°C:
  • Yield strength: 100 MPa
  • Tensile strength: 128 MPa
  • Elongation: 83.6 %
  • Reduction of Area: 77.4 %
• 1100°C:
  • Yield strength: 51 MPa
  • Tensile strength: 66 MPa
  • Elongation: 84.1 %
  • Reduction of Area: 69.4 %

Thermal Stability - tensile properties after aging:

• No aging, solution heat-treatment:
  • Yield strength: 338 MPa
  • Tensile strength: 745 MPa
  • Elongation: 48.5 %
  • Reduction of Area: 69 %
• After 50,000h at 650°C
  • Yield strength: 366 MPa
  • Tensile strength: 779 MPa
  • Elongation: 23.2 %
  • Reduction of Area: 32.5 %
• After 50,000h at 760°C
  • Yield strength: 310 MPa
  • Tensile strength: 688 MPa
  • Elongation: 14.8 %
  • Reduction of Area: 10.8 %
• After 50,000h at 870°C
  • Yield strength: 274 MPa
  • Tensile strength: 650 MPa
  • Elongation: 20.1 %
  • Reduction of Area: 18.2 %

0.5% Creep Data, Plate, Solutioned:

• 650°C, 1000h: 159 MPa
• 705°C, 100h: 140 MPa
• 705°C, 1000h: 97 MPa
• 760°C, 10h: 133 MPa
• 760°C, 100h: 100 MPa
• 760°C, 1000h: 74 MPa
• 760°C, 10000h: 55 MPa
• 815°C, 10h: 95 MPa
• 815°C, 100h: 72 MPa
• 815°C, 1000h: 55 MPa
• 815°C, 10000h: 39 MPa
• 870°C, 10h: 72 MPa
• 870°C, 100h: 58 MPa
• 870°C, 1000h: 42 MPa
• 870°C, 10000h: 28 MPa
• 930°C, 10h: 55 MPa
• 930°C, 100h: 41 MPa
• 930°C, 1000h: 27 MPa
• 930°C, 10000h: 17 MPa
• 980°C, 10h: 40 MPa
• 980°C, 100h: 26 MPa
• 980°C, 1000h: 14 MPa
• 980°C, 10000h: 7,6 MPa
• 1040°C, 10h: 28 MPa
• 1040°C, 100h: 16 MPa
• 1040°C, 1000h: 7,6 MPa
• 1090°C, 10h: 12 MPa
• 1090°C, 100h: 6,2 MPa
• 1150°C, 10h: 4,1 MPa
• 1150°C, 100h: 2,1 MPa

Rupture Strength, Plates, Solutioned:

• 650°C, 10h: 469 MPa
• 650°C, 100h: 372 MPa
• 650°C, 1000h: 241 MPa
• 650°C, 10000h: 159 MPa
• 705°C, 100h: 310 MPa
• 705°C, 1000h: 221 MPa
• 705°C, 100h: 150 MPa
• 705°C, 1000h: 103 MPa
• 760°C, 10h: 207 MPa
• 760°C, 100h: 148 MPa
• 760°C, 1000h: 105 MPa
• 760°C, 10000h: 76 MPa
• 815°C, 10h: 150 MPa
• 815°C, 100h: 105 MPa
• 815°C, 1000h: 76 MPa
• 815°C, 10000h: 54 MPa
• 870°C, 10h: 97 MPa
• 870°C, 100h: 74 MPa
• 870°C, 1000h: 53 MPa
• 870°C, 10000h: 34 MPa
• 930°C, 10h: 77 MPa
• 930°C, 100h: 54 MPa
• 930°C, 1000h: 35 MPa
• 930°C, 10000h: 21 MPa
• 980°C, 10h: 54 MPa
• 980°C, 100h: 34 MPa
• 980°C, 1000h: 21 MPa
• 980°C, 10000h: 12 MPa
• 1040°C, 10h: 38 MPa
• 1040°C, 100h: 23 MPa
• 1040°C, 1000h: 12 MPa
• 1040°C, 10000h: 6,7 MPa
• 1090°C, 100h: 14 MPa
• 1090°C, 1000h: 7,6 MPa
• 1090°C, 10000h: 4,1 MPa
• 1150°C, 100h: 8,3 MPa
• 1150°C, 1000h: 4,1 MPa
• 1150°C, 10000h: 2,1 MPa

Corrosion Resistance

High-temperature oxidation - very good resistance up to 1100°C.

1008h long static oxidation test results:

• 870°C:
  • Metal loss: <0.01 mm
  • Average metal affected: 0.02 mm
• 980°C:
  • Metal loss: 0.01 mm
  • Average metal affected: 0.05 mm
• 1095°C:
  • Metal loss: 0.03 mm
  • Average metal affected: 0.11 mm
• 1150°C:
  • Metal loss: 0.2 mm
  • Average metal affected: 0.26 mm

Water vapor test results:

• 870°C, 10% H₂O, 1008 h:
  • Metal loss: 0.002 mm
  • Average metal affected: 0.017 mm
• 870°C, 20% H₂O, 1008 h:
  • Metal loss: 0.001 mm
  • Average metal affected: 0.007 mm
• 760°C, 20% H₂O, 4320 h:
  • Metal loss: 0.003 mm
  • Average metal affected: 0.013 mm

High-temperature Carburization - good resistance up to 980°C.

High-temperature Carburization - good resistance up to 1095°C.

High-temperature Sulfidation - very good resistance up to 1095°C.

Weight change (mg/cm²) when exposed to sulfiditing environment for a given time - H₂+7%CO+1,5%H₂+0,6%H₂S at 700°C:

• 200h: 2.3 mg/cm²
• 400h: 4.2 mg/cm²
• 600h: 5.9 mg/cm²
• 800h: 6.0 mg/cm²
• 1000h: 6.1 mg/cm²

Hot corrosion - very good resistance. Burner rig hot corrosion data at 900°C exposed for 500 hours with 1% S in the fuel shows only 0,02 mm metal loss and 0,13 mm average metal affected.

Heat Treatment, Working and Machining

Standard recommended working and heat treatment parameters:

• Solution-treatment: 1175-1230°C; water quench

Good weldability with all welding techniques with the exception of SAW welding, which may promote cracking. Preheat or post-weld heat treatment are generally not required. Interpass temperature should be maintained below 100°C.

We deliver this steel alloy as:

• Seamless pipes according to ASTM B407-22/ASME SB407-23
• Rod, bar, wire, forging according to ASTM B 462 / ASME SB-461; ASTM B 564 / ASME SB-564; ASTM B 574 / ASME SB 574; DIN 17752, DIN 17753, DIN 17754
• Nickel alloy bars according to ASTM B408-22/ASME SB408-23
• Plates, sheets, strips according to ASTM B409-22/ASME SB409-23
• Nickel alloy forgings according to ASTM B564-19/ASME SB564-23