Inconel® 600
Inconel 600 is a standard nickel-chromium alloy designed for use from cryogenic to elevated temperatures in the range of 2000°F (1093°C). The high nickel content enables the alloy to retain considerable resistance under reducing conditions and makes it immune to chloride-ion stress-corrosion cracking.
- Common Forms: Pipe, Tube, Sheet, Strip, Round Bar, Wire.
- Key Feature: Immune to chloride-ion stress-corrosion cracking (SCC).
- Heat Resistance: Excellent oxidation resistance up to 2150°F.
- Weldability: Readily joined by conventional welding processes.
Inconel 600 is a versatile material used in applications that require resistance to corrosion and heat. Its high nickel content gives the alloy excellent resistance to alkaline solutions and chloride-ion stress-corrosion cracking, making it a reliable choice for the chemical and power generation industries.
High Temperature Stability
Resists oxidation and scaling at temperatures up to 2150°F (1175°C). It also resists carburization and nitriding.
Corrosion Resistance
Excellent resistance to dry chlorine and hydrogen chloride gases. It is also resistant to many organic and inorganic compounds.
Stress Corrosion Immunity
The high nickel content (min. 72%) provides virtual immunity to chloride-ion stress-corrosion cracking, a common failure mode in stainless steels.
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 72.0 min |
| Chromium (Cr) | 14.0 - 17.0 |
| Iron (Fe) | 6.0 - 10.0 |
| Manganese (Mn) | 1.0 max |
| Carbon (C) | 0.15 max |
| Silicon (Si) | 0.5 max |
| Sulfur (S) | 0.015 max |
| Product Form | ASTM / ASME Standards |
|---|---|
| Pipe & Tube (Seamless) | ASTM B167, ASME SB167, ASTM B163 |
| Pipe (Welded) | ASTM B517, ASME SB517 |
| Plate, Sheet, Strip | ASTM B168, ASME SB168 |
| Bar & Rod | ASTM B166, ASME SB166 |
| Fittings | ASTM B366, ASME SB366 |
| Forgings | ASTM B564, ASME SB564 |
| Property | Typical Values (Room Temp) |
|---|---|
| Tensile Strength | 80 - 100 ksi (550 - 690 MPa) |
| Yield Strength (0.2% Offset) | 35 - 50 ksi (240 - 345 MPa) |
| Elongation | 35 - 55 % |
| Hardness (Brinell) | 120 - 170 HB |
*Note: Properties can vary significantly based on the product form (e.g., cold-drawn tubing vs. hot-rolled plate).
Heat Treating Industry
Muffles, retorts, baskets, and trays used in furnaces; fixtures for vacuum heat treating.
Chemical Processing
Bubble towers, heaters, evaporators, and condensers for processing fatty acids; manufacture of sodium sulfide.
Aerospace
Engine exhaust systems, thrust-reverser systems, and turbine seals due to high temperature strength.
Nuclear Engineering
Standard material for steam generator tubing in pressurized water reactors (PWR).
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