Stainless Steel 330
- UNS N08330
- ASTM B 536, B 511, B 512, B 535
- B 536, B 546, B 710, B 739
ALLOY-330 by Taashvi Special Alloys
Alloy 330 (UNS N08330) is an austenitic nickel-iron-chromium alloy developed to provide excellent resistance to carburizing and oxidizing atmospheres at elevated temperatures. With a nickel content of 34 to 37 percent, the alloy remains highly resistant to both chloride stress corrosion cracking and embrittlement from the precipitation of sigma phase. The high nickel and chromium content provides excellent resistance to both oxidation and carburization. The oxidation resistance is also enhanced by the silicon content of the alloy. The alloy performs well under cyclic conditions of heating and cooling and in alternate carburizing and oxidizing atmospheres. Alloy 330 offers a high level of corrosion resistance, particularly to oxidation, carburization, and nitridation. It is readily fabricated using standard procedures for stainless steels and nickel alloys. The alloy is used extensively in elevated temperature atmospheres where resistance to the combined effects of thermal cycling an
Applications
Chemical and Petrochemical Processing
- Cracked ammonia components
- Petrochemical furnace parts
- Petrochemical waste remediation units
- Heat exchangers
- Flares
Ore Processing
- Perlite systems and equipment
Power Generation
- Boiler fixtures
- Gas turbine components
Thermal Processing
- Heat-treat furnace containers
- Heat-treat furnace components
- High temperature fans
- Salt pots
Applications
ASTM.............. B 536
ASME.............. SB 536
AMS ................ 5592
Chemical Analysis
Typical Values (Weight %)
| Ni | Cr | Fe | C | Si | Mn | P | S |
|---|---|---|---|---|---|---|---|
| 34.0-37.0 | 17.0 - 20.0 | Balance* | 0.08 max. | 0.75 - 1.50 | 2.0 max. | 0.030 max. | 0.030 max. |
Physical Properties
Density
0.292 lbs/in38.08 g/cm3
Specific Heat
0.11 BTU/lb°F (32-212°F)460 J/kg°C (0-100°C)
Magnetic Permeability
1.02 at 70°F/20°C (RT)Linear Coefficient of Thermal Expansion
High Temperature Mechanical Properties
Tensile Properties of Annealed Material
Thermal and Electrical Properties
| Temperature | Thermal Conductivity | Electrical Resistivity | |||
|---|---|---|---|---|---|
| ºF | ºC | Btu-in/ft2-h-ºF | W/m-ºC | ohm-circ mil/ft | µΩ-m |
| 75 | 24 | 86 | 12.4 | 612 | 1.017 |
| 400 | 204 | 108 | 15.6 | 649 | 1.079 |
| 800 | 427 | 134 | 19.3 | 688 | 1.144 |
| 1200 | 649 | 162 | 23.4 | 721 | 1.199 |
| 1600 | 871 | 198 | 28.6 | 744 | 1.237 |
| 1800 | 982 | 216 | 31.2 | 749 | 1.245 |
Mechanical Properties
Typical Room Temperature Mechanical Properties, Mill Annealed
| Ni | Cr |
|---|---|
| 0.2% Offset Yield Strength, ksi (MPa) | 30-43 (207-296) |
| Ultimate Tensile Strength, ksi (MPa) | 80-85 (552-586) |
| Elongation in 2 inches (50mm), % | 40-45 |
| Hardness, Rockwell B | 70-85 |
Coil / Sheet /Plate Specification
Dimensions : ASTM, ASME, AISI, DIN, BIS
Thickness : 0.50mm - 100mm
Size : 1000 mm x 2000mm, 1220mm x 2440mm, 4' x 8', 1250mm x 2500mm, 1500mm x 3000mm to 6000mm, 2000mm x 4000mm to 6000mm
Finish : Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
Form : Shim Sheet, Perforated Sheet, Profile Cut,
Seamless & Welded Pipes & Tubes Specification
Specification : ASTM, ASME, DIN, NFA, JIS.
Thickness : 4.0mm - 100mm.
Pipe Size : 1/8” NB to 24” NB, 1/4” OD to 24” OD sizes.
Tube Size : 1/2" OD to 8" OD.
Length : Cut length, Fix length, Single Random, Double Random & Required Length.
Form : Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pancake Coils, Hydraulic Tubes.
End : Plain End, Beveled End, Threaded End.
Type : Seamless & Welded Pipes & Tubes.
Round Bar Specification
Dimensions : ASTM, ASME,AISI, API.
Size : 5 mm to 500 mm
Length : from 2.00mm to 6.35mm (0.078" to 0.25") dia.
Finish : Bright, Black, Polish, Forged
Form : Round Bar, Square, Hexagon
Condition : Cold Drawn & Polished Cold Drawn, Centerless Ground Bars & Polished
Other Services : Machining (CNC), Centerless Grinding (CG), Heat Treatment, Annealing, Pickling, Polish, Rolling, Forging, Cutting, Bending, Minor Fabrication
Seamless & Welded Pipes & Tubes Fittings Specification
Specification : ASTM, ASME, DIN, NFA, JIS.
Size : 1/8” NB to 24” NB, 1/4” OD to 24” OD sizes.
Form : Elbow, Tee, Reducer, Stub End, End Cap, Pipe Nipple, Weldolet,
End : Beveled End, Threaded. Plain End,
Type : Seamless & Welded Pipe & Tubes Fittings, Buttweld Fittings & Dairy Fittings.
