UNS N06625 (Alloy 625) Werkstoff 2.4856
UNS N06625, Alloy 625 is a nickel based alloy with excellent resistance to oxidation and corrosion across a wide spectrum of corrosive media. Alloy 625 LCF has low controlled levels of carbon, nitrogen and silicon, producing excellent fatigue strength. Alloy 625 Grade 1 is annealed material at a minimum of 870°C, and 625 Grade 2 is solution annealed at a minimum of 1090°C.
Data Sheet
UNS N06625, Alloy 625 is a nickel based alloy with excellent resistance to oxidation and corrosion accorss a wide spectrum of corrosive media. Alloy 625 LCF has low controlled levels of carbon, nitrogen and silicon, producing excellent fatigue strength. Alloy 625 Grade 1 is annealed material at a minimum of 870ºC, and 625 Grade 2 is solution annealed at a minimum of 1090ºC.
ASTM Specifications:- Sheet and plate ASTM B443, Bar and rod ASTM B446, Seamless pipe ASTM B444, Pipefittings ASTM B366, Forgings ASTM B564
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Applications
- Chemical Processing
- Exhausts
- Aerospace Equipment
Chemical Composition
| C |
(Carbon) |
0.10% Max (in 625LCF 0.03% Max) |
| Cr |
(Chromium) |
20.0-23.0% |
| Fe |
(Iron) |
5.0% Max |
| Mn |
(Manganese) |
0.5% Max |
| Si |
(Silicon) |
0.15% Max |
| S |
(Sulphur) |
0.015% Max |
| P |
(Phosphorus) |
0.015% Max |
| Ni |
(Nickel) |
Balance |
| Al |
(Aluminium) |
0.4% Max |
| N |
(Nitrogen) |
(in 625LCF 0.02% Max) |
| Ti |
(Titanium) |
0.4% Max |
| Co |
(Cobalt) |
1.0% Max |
| Nb + Ta |
(Niobium & Tantalum) |
3.15-4.15% |
| Mo |
(Molybdenum) |
8.0-10.0% |
Physical
| Density |
8440kg/m3 |
| Melting Range |
1285-1350ºC |
Mechanical
| Hardness Rockwell B |
97 |
| Tensile Strength @ Break |
830 Mpa / 121000psi Min |
| Tensile Strength @ Yield |
415 Mpa / 60000 psi 0.2% offsett |
| Elongation in 2" |
45% Min |
| Modulus of Elasticity in tension |
208 Gpa 30000 ksi |
* Above properties typical values of annealed material (Gr1) at room temp
Thermal
| CTELinear |
13.1 μm/m-ºC (@temp 20-204ºC) |
| |
13.5 μm/m-ºC (@temp 20-316ºC) |
| |
13.9 μm/m-ºC (@temp 20-427ºC) |
| |
15.1 μm/m-ºC (@temp 20-649ºC) |
| Specific Heat Capacity |
0.410J/g-ºC |
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consultation and testing. Material properties can vary from one manufacturer to another. See out terms and conditions of use.