*Similar Grade
GB | Trademark | UNS | DIN EN/DIN | W-Nr. | NF | BS EN/BS |
GH4169 | Inconel 718 | N07718 | NiCr19Fe19Nb5Mo3 | 2.3668 | NiCr19Fe19Nb5Mo3 ATG C1 | NiCr19Fe19Nb5Mo3 |
*Product Forms
Pipe, Tube, Sheet, Strip, Plate, Round Bar, Flat Bar, Forgings, Hexagon, Wire
*Brief
A precipitation-hardenable nickel-chromium alloy also containing significant amounts of iron, niobium, and molybdenum along with lesser amounts of aluminum and titanium. It combines corrosion resistance and high strength with outstanding weldability including resistance to post weld cracking. The alloy has excellent creep-rupture strength at temperatures to 700℃.
*Chemical Composition,%
% | Ni | Mo | Fe | Nb | Cr | C | Mn | Si | P | S | Ti | Al | Co | Cu |
Min | 50.0 | 2.8 | Rest | 4.75 | 17.0 | 0.65 | 0.2 | |||||||
Max | 55.0 | 3.3 | 5.50 | 21.0 | 0.08 | 0.35 | 0.35 | 0.015 | 0.015 | 1.15 | 0.8 | 1.0 | 0.3 |
*Typical Physical & Mechanical Property(Solution Annealed + 2 Aging)
Density | Melting point | Tensile strength, MPa | Yield strength, MPa | Elongation,% | Hardness Brinell |
8.19 g/cm3 | 1260-1336℃ | ≥1275 | ≥1034 | - | ≥331 |
*Specification
Rod, Bar, Wire, Forgings | ASTM B637/ASME SB637, ISO 9723/9724/9725, DIN 17752-17754 |
Plate, Sheet, Strip | ASTM B670/ASME SB670, ASTM B906/ASME B906, ISO 6208, DIN 17750 |
Pipe, Tube | SAE AMS 5589/5590, DIN17751 |
Others | ASTM B366/ASME SB366(Fittings), DIN 17744 |
Welding Products | Inconel Filler Metal 718-AWS A5.14/ERNiCrFe-2 |
*Feature
1. Good mechanical properties – tensile, fatigue and creep-rupture
2. Yield tensile strength, creep, and rupture strength properties are exceedingly high
3. Highly resistant to chloride and sulfide stress corrosion cracking
4. Resistant to aqueous corrosion and chloride ion stress corrosion cracking
5. High temperature resistant
6. Age-hardenable with a unique property of slow aging response that permits heating and cooling during annealing without the danger of cracking.
7. Excellent welding characteristics, resistant to postweld age cracking
*Application
1. Chemical processing
2. Aerospace
3. Liquid fuel rocket motor components
4. Pollution-control equipment
5. Nuclear reactors
6. Cryogenic storage tanks
7. Valves, fasteners, springs, mandrels, tubing hangers
8. Well head completion equipment and blow out preventers (BOP’s)
9. Gas turbine engine parts
