These balls, made of austenitic stainless steel, are distinguished by their outstanding mechanical properties and increased corrosion resistance. They are particularly suitable for acidic environments, especially in applications using sulphuric acid. With Marteau-Lemarie, take advantage of technical expertise and stock available in France for quick delivery.
Chemical composition of the carpenter ball 20 cb 3
| Element | C | If | Mn | P | S | Cr | Neither | Mo | Cu | Nb | Your | Fe |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % | 0.060 max | 1.00 max | 2.00 max | 0.035 max | 0.035 max | 19,00-21,00 | 32,50-35,00 | 2,00-3,00 | 3,00-4,00 | 8x%C-1,00 | 1.00 max | balance |
Physical characteristics of the carpenter ball 20 cb 3
| Ownership | Value | Unit |
|---|---|---|
| Density | 8.08 | g/cm3 |
| Young Module | 193 | GPA |
| Thermal expansion coefficient | 14.7 (DT=0-100°C) | × 10−6 /°C |
| Thermal conductivity | 20 | W/m·K |
| Electrical resistivity | 1082 | × 10 - 9 D·m |
| Specific heat | 500 | J/kg·K |
| Relative magnetic permeability | 1,002 | — |
| Magnetic behaviour | Paramagnetic | — |
Hardness and mechanical resistance of the carpenter ball 20 cb 3
| Ownership | Value | Unit |
|---|---|---|
| Hardness | 90-95 | HRB |
| Tensile failure load | 550-630 | MPa |
| Tensile failure load | 79-92 | MPa |
| Exercise temperatures | -196/500 | ° C |
| Exercise temperatures | -320,8/932 | °F |
Diameters and grades available for the carpenter ball 20 cb 3
| Parameter | Value |
|---|---|
| Minimum diameter | 1 mm — 3/64′′′ |
| Maximum diameter | 100 mm — 4′′ |
| Grades available | G100-200-300-500-600-700-1000 |
| Precision standards | ISO 3290-1 / DIN 5401 / AFBMA |
Corrosion resistance of the carpenter ball 20 cb 3
Excellent resistance in hot sulphuric acid and other extremely aggressive components such as ferric sulphate. Good corrosion resistance in nitric, phosphonic and acetic acids, organic acids and sodium hydroxide, as well as by pitting, under loading, interstitial and intergranular. Moderate seawater resistance. The presence of chloride ions reduces the corrosion resistance of alloy.
Carpenter ball applications 20 cb 3
Special valves, also used in the food, chemical and petrochemical industry, plastics, rubber and explosives.
