With the addition of titanium and aluminium, Alloy K500 can be heat treated to give higher strength. The alloy has similar corrosion resistance to Alloy 400 in a wide range of media including seawater, hydrofluoric acid, sulphuric acid and alkalis.
% | C | Mn | Si | S | Ni | Cu | Ti | Al | Fe |
---|---|---|---|---|---|---|---|---|---|
Min | 0 | 0 | 0 | 0 | 63 | 27 | 0.35 | 2.3 | 0 |
Max | 0.25 | 1.5 | 0.5 | 0.01 | 70 | 33 | 0.85 | 3.15 | 2 |
Alloy K500 has outstanding corrosion resistance in a variety of environments and is currently employed in marine, oil and gas and chemical environments. The alloy has excellent mechanical properties ranging from sub-zero temperatures up to around 480°C. Alloy K500 demonstrates excellent corrosion resistance in many environments including pure water to non-oxidising mineral acids, salts and alkalis.
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Mechanical & Physical Properties | -200°C | -157°C | -130°C | -70°C | 21.1°C | 100°C | 204.4°C | 315.6°C | 400°C | 537.8°C | 648.9°C |
---|---|---|---|---|---|---|---|---|---|---|---|
Ultimate Tensile Strength /MPa | - | - | - | - | 1100 | 1040 | 1020 | 980 | 890 | 750 | 620 |
0.2% Yield Strength /MPa | - | - | - | - | 690 | 670 | 640 | 620 | 600 | 570 | 490 |
Reduction of area % | - | - | - | - | - | - | - | - | - | - | - |
Elongation % | - | - | - | - | 24 | - | - | - | - | - | - |
Charpy Impact V-notch /J | - | - | - | - | 68 | - | - | - | - | - | - |
Coefficient of Thermal Expansion /µm/m°C | 11.2 | 11.7 | 12.2 | 13 | 13 | 13.7 | 14.6 | 14.9 | 15.3 | 15.7 | 16.4 |
Thermal Conductivity /kcal/(hr.m.°C) | - | 10.6 | 11.3 | 12.64 | 14.79 | 16.68 | 19.09 | 21.84 | 24.25 | 27 | 29.41 |
Modulus of Elasticity / GPa | - | - | - | - | 179 | - | - | - | - | - | - |