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330 Stainless Steel

330 Stainless Steel

Nickel (Ni) - 35.5 Median
(34.0 Min - 37.0 Max)
Copper (Cu) - 1 Max
Chromium (Cr) - 19 Median
(18.0 Min - 20.0 Max)
Iron (Fe) - 41.13 Balance
Manganese (Mn) - 2 Max
Silicon (Si) - 1.25 Median
(1.0 Min - 1.5 Max)
Other

Key

Nickel
Copper
Chromium
Aluminum
Molybdenum
Iron
Titanium
Manganese
Cobalt
Other
  • Nickel (Ni) 35.5 Median
    (34.0 Min - 37.0 Max)
  • Copper (Cu) 1 Max
  • Chromium (Cr) 19 Median
    (18.0 Min - 20.0 Max)
  • Iron (Fe) 41.13 Balance
  • Manganese (Mn) 2 Max
  • Carbon (C) 0.06 Median
    (0.04 Min - 0.08 Max)
  • Silicon (Si) 1.25 Median
    (1.0 Min - 1.5 Max)
  • Phosphorus (P) 0.03 Max
  • Sulfur (S) 0.03 Max

UNS N08330

Alloy 330 resists oxidation up to 2100º F (1150º C). The high silicon content promotes resistance to carburization. Alloy 330 Stainless fasteners are used in environments where thermal cycling is frequent. Typical applications would be heat exchangers, gas turbines, radiant tubes, salt pots, and perlite processing.

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Summary

  • Environment:
    Oxidation Resistant
  • Temperature Limit:
    2100 °F / 1149 °C
  • Ultimate Tensile (Typical):
    85 ksi / 586 mpa

Specifications & Technical Data

If your question isn’t answered below, download the technical data sheet here.

Specifications

  • W. Nr./EN: 1.4886, 10095
  • AMS: 5592, 5716
  • ASME: SB-536, SB-511, SB-535, SB-710
  • ASTM: B 536, B 511, B 512, B 535, B 546, B 710, B 739

Applications

  • Furnace containers – carburizing, carbonitriding, annealing malleablizing
  • Muffles, retorts • Bar frame heat treating baskets
  • Quenching fixtures
  • Radiant tubes
  • Salt pots, both neutral and cyanide
  • Furnance fans and shafts
  • Conveyors
  • Hot pressing platens
  • Tube hangers for crude oil heaters and steam boilers

Physical Properties

Density: 0.287 lb/in3 Melting Range: 2450 – 2540°F

Temperature, ° F 70 1400 1600 1800
Coefficient* of Thermal Expansion,
in/in°F x 10-6		 – 9.7 9.8 10
Thermal Conductivity
Btu • ft/ft2 • hr • °F		 7.2 13.7 14.2 14.7
Electrical Conductivity,
68°F (20°C), %IACS		 28.5 21 19.5 18

*70°F to indicated temperature.

Mechanical Properties

Typical Properties, Mill Annealed
Temperature 70° F
Ultimate Tensile Strength 85.0 ksi
0.2% Yield Strength 39.0 ksi
Elongation 47%
Reduction of Area 65%
Hardness
Rockwell B 70-85
ASTM Grain Size 4-7
Erichsen Cup Depth
0.025 in sheet 0.3937 in
Poisson’s Ratio 0.297

 

Short Time Elevated Temperature Tensile Properties
Temperature, ° F Ultimate Tensile Strength, ksi 0.2% Yield Strength, ks Elongation, %
1000 71 25 46
1100 66.4 24.2 46
1200 56.7 22 43
1300 44.3 21 69
1400 35.9 20.7 78
1500 26.8 17.3 56
1600 21.1 15.4 79
1800 10.4 8.5 79
2000 3.2 2 28

 

Typical Creep-Rupture Properties
Temperature, ° F 1400 1600 1800 2000
Minimum Creep 0.0001%/Hour, ksi 3.6 2.1 0.5 –
10,000 Hour Rupture Strength, ksi 4.3 1.7 0.63 0.28
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330 Stainless Steel Fasteners

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Bolts & Screws
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Industries We Serve

Nickel Systems provides high quality exotic grade materials that hold up in the toughest, most severe heat and corrosive environments. With our large inventory of specialty fasteners in stock, we are always ready to answer the call to serve the most challenging applications.

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