Hastelloyc C-4 is an austenitic low carbon nickel-molybdenum chromium alloy.
The main difference between HastelloyC-4 and other early developed alloys of similar chemical composition is the low carbon, ferrosilicate, and tungsten content.
Such chemical composition makes it show excellent stability at 650-1040℃, improve the ability to resist intergranular corrosion, under appropriate manufacturing conditions can avoid edge line corrosion sensitivity and weld heat affected zone corrosion.
| Alloy |
% |
Fe |
Cr |
Ni |
Mo |
Co |
C |
Mn |
Si |
S |
P |
W |
V |
|
Hastelloy C-4 |
Min. |
- |
14.0 |
balance |
14.0 | - | - | - | - | - | - |
2.5 |
- |
|
Max. |
3.0 |
18.0 |
17.0 |
2.0 | 0.015 | 3.0 | 0.1 | 0.01 | 0.03 | 3.5 | 0.2 |
Hastelloy C-4 Physical Properties
| Density | 8.94 g/cm³ |
| Melting point | 1325-1370 ℃ |
| Status |
Tensile strength Rm N/mm² |
Yield strength Rp 0. 2N/mm² |
Elongation As % |
Brinell hardness HB |
| Solution treatment | 690 | 276 | 40 | - |
| Bar/Rod | Strip/Coil | Sheet/Plate | Pipe/Tube | Forgings |
| ASTM B335 | ASTM B333 | ASTM B622,ASTM B619,ASTM B626 | ASTM B564 | |
Round bars/Flat bars/Hex bars, Size From 8.0mm-320mm, Used for bolts,fastners and other spare parts
Forging Ring or gasket,size can be customized with bright surface and precision tolerance
Widths up to 1500mm and lengths up to 6000mm,Thickness from 0.1mm to 100mm.
Standards size and customized dimension can be produced by us with small tolerance
Soft condition and hard condition with AB bright surface, width up to 1000mm
Hastelloy C-4 materials in forms of Bolts,screws,flanges and other fasterners, according to clients specification.
• Excellent corrosion resistance to most corrosive media, especially in reduced condition.
• Excellent local corrosion resistance in halides.
• Flue gas desulfurization system
• Pickling and acid regeneration plants
• Acetic acid and agro-chemical production
• Titanium dioxide production (chlorine method)
• Electroplating