Incoloy DS is a heat resistant iron-nickel-chromium alloy particularly resistant to carburizationand/or substituting oxidation-carburizationhot situations.
ApplicationsINCOLOY alloy DS is best machined in the annealed condition, with hot-rolled, as-rolled and hot-produced material demonstrating the following best results. It is best machined on heavy duty equipment utilizing tools widely and sufficiently overwhelming to withstand the loads and dissipate heat quickly.
FormingThis alloy has good ductility and might be promptly formed by every standard technique. Since the alloy is more powerful than consistent steel it requires all the more effective equipment to perform forming. Heavy-duty lubricants should be utilized during cold forming. It is important to altogether clean the part of all traces of lubricant to shaping as embrittlement of the alloy might occur at high temperatures if lubricant is left on.
WeldingIncoloy DS™ is welded utilizing gas-tungsten arc welding, shielded metal-arc welding, gas metal-arc welding and submerged-arc welding strategies.
Heat TreatmentThe alloy is not responsive to strengthening by heat treatment.
ForgingThe alloy might be forged at temperatures within the scope of 2000 F.
Hot WorkingThis alloy might be hot worked in a temperature within the scope of 1900 F or lower.
Cold WorkingCold forming might be done utilizing standard tooling albeit plain carbon tool steels are not recommended for shaping as they tend to produce galling. Soft die materials (bronze, zinc alloy, and so forth.) minimize galling and deliver great completions, yet the die life is to some degree short. For long production runs the alloy tool steels (D-2, D-3) and high speed steels (T-1, M-2, M-10) give great results particularly if hard chromium plated to decrease galling. Tooling should be, for example, to take into consideration liberal clearances and radii. Heavy duty lubricants should be utilized to minimize galling in all forming operations. Twisting of sheet or plate through 180 degrees is for the most part constrained to a twist sweep of 1 T for material up to 1/8" thick and 2 T for material thicker than 1/8".
AnnealingThe alloy should be annealed inside the scope of 1000-1150°C, the temperature and holding time depending upon the thickness of the material and the proposed application. Cooling rate does not influence hardness. Furnace fuel should best be without sulfur. Town's gas, natural gas, distillate fuel oils and power are suitable. For most heat treatments and heating process, the environment should be changed in accordance with keeping up slight oxidizing conditions. Bright annealing can be completed in dry hydrogen or cracked ammonia.
HardeningHardens are because of cold working only.
Chemical Composition %C | Si | S | Ti | Cr | Mn | Fe | Cu | Ni + Co |
0.10 | 1.9 - 2.6 | 0.03 | 0.20 | 17.0 - 19.0 | 0.8 - 1.5 | Balance | 0.50 | 34.5 - 41.0 |
Tensile Strength (ksi) | 0.2% Yield Strength (ksi) | Elongation% in 2 inches |
99.64 | 52.64 | 37.1 |
Units | Temperature in °C | |
Density | 7.86 g/cm³ | Room |
Specific Heat | 0.107 Kcal/kg.C | 20° |
Melting Range | 1330-1400 °C | - |
Modulus of Elasticity | 197 KN/mm² | 21° |
Electrical Resistivity | 108 µΩ.cm | Room |
Coefficient of Expansion | 15.0 µm/m °C | 20-100° |
Thermal Conductivity | 12.0 W/m -°K | 20° |
Pipe / Tube (SMLS) | Pipe Welded | Tube Welded | Sheet / Plate | Bar | Forging | Fitting |
- | - | - | - | - | - | - |
Manufacturing |
Fasteners |
Custom Machining |
Custom Fabrication |
Piping / Spools |
Stamped Parts |
B/W Fittings |
S/W Fittings |
Flanges |
Compression Fittings |
Raw Materials |
Pipes |
Tubes |
Bars & Wires |
Sheets & Plates |