INCONEL 600 is a nickel-chromium alloy used in chemical industry and the automotive engine, aeroengine and airframe sectors. Controlled chemical composition limits are applied in the nuclear industry to eliminate the risk of stress corrosion cracking by high purity water containing chloride ions.
The addition of chromium provides superior corrosion resistance in acidic environments, compared to a pure nickel, while allowing the material to maintain corrosion resistance in a reducing state and exhibit superior corrosion resistance to alkaline solutions. Nickel Alloy 600 can be used in solutions of magnesium chloride because of its exceptional resistance to chloride stress corrosion cracking. It has exceptional strength at working temperatures up to 2000˚F (1093˚C).
Quken offers Inconel 600 in following forms:
| Product form | Standard | Size available mm |
|---|
| Strip | ASTM B168/ASME SB168 | 0.05~2.0*3~540*C |
| Sheet | ASME SB168 | 1.5~6*1000~1500*1000*6000 |
| Plate | ASME SB168 | 8~25*1000~2000*2000~6000 |
| Flanges | ASME SB366 | Custom |
| Seamless pipe/tube | ASME SB167 | φ5~219*0.5~8.18*9000 Max |
| Welded pipe/tube | ASME SB517 | φ40~630*2~16*13000 Max |
| Bar | ASME SB166 | φ3.5~200*100~6000 |
| Wire | ASME SB166 | φ1~3*C |
| Pipe fittings | ASME SB366 | Custom |
| Forgings | ASME SB564 | Custom |
Designations and standards:
| Standard | Material designation |
|---|
| EN | 2.4816 - NiCr15Fe |
| ISO | NiCr15Fe8 |
| UNS | N06600 |
| AFNOR | NC15Fe |
Chemical composition %:
| | Ni | Cu | Cr | Fe | C | Mn | S | Si |
|---|
| MIN. | 72.0 | | 14.0 | 6.0 | | | | |
| MAX. | | 0.5 | 17.0 | 10.0 | 0.15 | 1.0 | 0.015 | 0.5 |
Physical Constants:
| Density | 0.306 lb/in3,8.47g/cm3 |
| Melting Point (Approx.) | 2471°F/1355°C |
| Electrical Resistivity | 103 Microhm·cm |
| Thermal Expansion Coefficient (25° to 100°C) | 13.3 x 10-6/°C |
| Thermal Conductivity | 14.7 W/m·K |
Mechanical Properties：
| Yield Strength 0.2% Offset | Tensile Strength | Elongation In 2inches | Hardness |
|---|
| KSI | MPa | KSI | MPa | % | Brinell (3000-kg) | Rockwell HRC |
|---|
| 25 ~ 50 | 172 - 344 | 75 - 105 | 517 ~ 723 | 35 - 55 | 88 Max | ~ |
Applications
- Pressure Vessel
- Heat treating muffles and retorts
- Chlorination equipment to 538°C
- Nitriding furnaces and baskets
- Vacuum furnace fixtures
High-Temperature Applications
Alloy 600 is widely used in the furnace and heattreating fields for retorts, boxes, muffles, wire belts, rollerhearths, and similar parts which require resistance tooxidation and to furnace atmospheres. The alloy is the standard material for nitriding containers because of itsresistance to nitrogen at high temperatures. Alloy 600 has good resistance tocarburization. Alloy 600 resists attack by sulfur compoundsat moderate temperatures, but it is subject to sulfidation inhigh-temperature, sulfur-containing environments.Molybdenum disulfide, a lubricant sometimes used to aidparts assembly, should not be used if the material will besubsequently exposed to temperatures above 800°F (427°C).
