Made of copper-enriched austenitic stainless steel, these balls combine excellent usability with performance adapted to specific requirements. They are ideal when specific properties are sought, although they have mechanical characteristics slightly lower than those of IAISI 201. Marteau- Lemarie assures you a fast supply from our stock in France, with technical expertise of more than 40 years.
Chemical composition of AISI 204 cu stainless steel ball
| Element | C | If | Mn | P | S | Cr | Neither | Cu | N |
|---|---|---|---|---|---|---|---|---|---|
| % | 0,150 max | 1.00 max | 6,50-9,00 | 0,100 max | 0.030 max | 14,00-17,50 | 1,50-3,50 | 1,80-4,00 | 0,050-0,250 |
Physical characteristics of AISI 204 cu stainless steel ball
| Ownership | Value | Unit |
|---|---|---|
| Density | 7.81 | g/cm3 |
| Young Module | 200 | GPA |
| Thermal expansion coefficient | 17.1 (DT=0-100°C) | × 10−6 /°C |
| Thermal conductivity | 15 | W/m·K |
| Electrical resistivity | 163 | × 10 - 9 D·m |
| Specific heat | 498 | J/kg·K |
| Relative magnetic permeability | 1.03 / max 10 | — |
| Magnetic behaviour | Paramagnetic / Slightly ferromagnetic | — |
Hardness and mechanical strength of AISI 204 cu stainless steel ball
| Ownership | Value | Unit |
|---|---|---|
| Hardness | 25-45 | HRC |
| Tensile failure load | 635-1195 | MPa |
| Tensile failure load | 92-173 | psix10^3 |
| Exercise temperatures | -196/700 | ° C |
| Exercise temperatures | -320,8/1697 | °F |
Diameters and grades available for AISI 204 cu stainless steel ball
| Parameter | Value |
|---|---|
| Minimum diameter | 0.8 mm — 1/32′′′ |
| Maximum diameter | 180 mm — 7′′ |
| Grades available | G100-200-300-500-600-700-1000 |
| Precision standards | ISO 3290-1 / DIN 5401 / AFBMA |
Corrosion resistance of AISI 204 cu stainless steel ball
Similar to AISI 302/304 balls except in acidic media (e.g. in contact with sulphuric acid) or in the presence of chlorides where they show lower corrosion resistance. Not suitable for use in the marine environment.
International standards for AISI 204 cu stainless steel ball
| ITA | USA (AISI) | DIN (GER) | AFNOR (FRA) | UK | GOST (RUS) | GB (CHN) | JIS (JPN) |
|---|---|---|---|---|---|---|---|
| X8CrMnCuNB17-8-3 | 204 Cu | 1.4597 | X8CrMnCuNB17-8-3 | X8CrMnCuNB17-8-3 | – | – | – |
Applications of AISI 204 cu stainless steel ball
Special bearings, automotive components, switches, pressure moulding devices. Employees in the electronic industry.
