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Short Description:
Incoloy alloy 330 is an alloy comprising of nickel-iron-chromium with silicon as an additive. Using silicon as an additive gives the alloy enhanced oxidation resistance. This alloy exhibits good strength at high temperatures and good resistance to oxidation and reduction environments.
Product Description
Alloy 330 is an austenitic heat and corrosion resisting alloy that offers a combination of strength and resistance to carburization, oxidation and thermal shock. This alloy was designed for applications in high temperature industrial environments where good resistance to the combined effects of carburization and thermal cycling are required, such as the heat treat industry. Carburization and oxidation resistance to about 2100°F are enhanced by the silicon content of the alloy 330 stainless remains fully austenitic at all temperatures and is not subject to embrittlement from sigma formation. It has a solid solution composition and is not hardenable by heat treatment. The alloy’s strength and oxidation resistance at high temperatures make it a useful material for industrial heating furnaces.
Incoloy 330 Characteristic
- Oxidation resistance to 2100°F (1148°C)
- Resistant to carburization and nitriding
- Resistance to thermal shock
- Good strength at elevated temperature
- Metallurgical stability
Incoloy 330 Chemical Composition
| % | Cr | Ni | Si | C | Mn | P | S | Cu | Fe |
|---|---|---|---|---|---|---|---|---|---|
| Min | 18 | 34 | 1 | - | - | - | - | - | - |
| Max | 20 | 37 | 1.5 | 0.08 | 2 | 0.03 | 0.03 | 1 | Balance |
Incoloy 330 Physical Properties
| Density | Melting range |
|---|---|
| 8.08 g/cm³ | 1380-1420°C |
Incoloy 330 Mechanical & Physical Properties
| Mechanical & Physical Properties | 21°C | 538°C | 593°C | 649°C | 704°C | 760°C | 816°C | 871°C | 982°C | 1093°C |
|---|---|---|---|---|---|---|---|---|---|---|
| Ultimate Tensile Strength /MPa | 586.1 | 489.5 | 457.8 | 390.9 | 305.4 | 247.5 | 184.8 | 145.5 | 71.7 | 22.1 |
| 0.2% Yield Strength /MPa | 268.9 | 172.4 | 166.9 | 151.7 | 144.8 | 142.7 | 119.3 | 106.2 | 58.6 | 13.8 |
| Elongation | 47 | 46 | 46 | 43 | 69 | 78 | 56 | 79 | 79 | 28 |
| Minimum Creep 0.0001% per hr /MPa | - | - | - | - | - | 24.8 | - | 14.5 | 3.4 | - |
| 10,000 hr Rupture Strength/MPa | - | - | - | - | 29.6 | - | 11.7 | 4.3 | 1.9 | |
| Coefficient of Thermal Expansion /µm/m⁰C | - | - | - | - | - | 17.46 | - | 17.64 | 18 | - |
| Thermal Conductivity /kcal/(hr.m.°C) | 10.71 | - | - | - | - | 20.39 | - | 21.13 | 21.87 | - |
| Modulus of Elasticity / x105 MPa | 2 | - | - | - | - | 1 | - | 1 | 1 | - |
- Bars & Rods & Foring Ring /Flanges
- Sheet & Plate
- Strip & Coil
- Welding Wire &Spring wire
- Seamless Tube & Welded Pipe
»Round Bar & Square Bar & Hexagon Bar
● Diameter : φ8～φ300mm Length:10mm-6000mm
● Hot forging, Hot Rolling, Cold Drawing
● Bright Surface, Polished Surface, Black Surface
»Tube & Pipe:Seamless Tube& Welded Pipe
● Cold Drawing Seamless Pipe： φ1.0～φ220mm
● Hot Extrusion pipe: φ50～φ250mm
● Others : U Blend Tube and Elbow
»Hot Rolled Plate & Cold Rolled Sheet
● Cold Rolling Sheet Thickness: ≦2.0mm Width:≦1500m
● Hot rolling Plate Thickness: ≧4.0mm Width: ≦2500m
»Strip & Tape Ribbon
● Thickness: ≧ 0.01mm Width: 15mm-300mm
● Cold rolling BA Strip, Hard & Soft Condition
»Straight Length Wire & Spool Wire
● Welding Wire: φ 0.1mm～6.0mm Cut length Rod: φ1.0～φ8.0mm
● Package : 5-25kg/Spool or Box
Incoloy 330 ApplicationsI
Incoloy 330 is a 330 stainless steel alloy that is commonly used in chemical, petrochemical, ore, power generation and thermal processing applications, some of which include:
- Muffles and retorts
- Quenching fixtures
- Furnace, fans and shafts
- Hot pressing platens
- Bar baskets
- Radiant tubes
- Salt pots – both neutral and cyanite
- Tube hangers for crude oil heaters and steam boilers