Our AISI D2 steel beads are distinguished by their rich carbon and chromium composition, providing excellent dimensional stability and outstanding mechanical features. They are ideal for applications requiring increased resistance to abrasion and wear. Marteau- Lemarie, with 40 years of expertise, guarantees the rapid availability of these products in stock in France.
Chemical composition of AISI D2 steel ball
| Element | C | If | Mn | P | S | Cr | Mo | V |
|---|---|---|---|---|---|---|---|---|
| % | 1,40-1,60 | 0,10-0,60 | 0,10-0,60 | 0.030 max | 0.030 max | 11,00-13,00 | 0,70-1,20 | 0,50-1,10 |
Physical characteristics of AISI D2 steel ball
| Ownership | Value | Unit |
|---|---|---|
| Density | 7.67 | g/cm3 |
| Young Module | 209 | GPA |
| Thermal expansion coefficient | 11.4 (DT=0-100°C) | × 10−6 /°C |
| Thermal conductivity | 20.5 | W/m·K |
| Electrical resistivity | 650 | × 10 - 9 D·m |
| Specific heat | 460 | J/kg·K |
| Relative magnetic permeability | > 500 | — |
| Magnetic behaviour | Ferromagnetic | — |
Hardness and mechanical strength of steel ball for AISI D2 utensils
| Ownership | Value | Unit |
|---|---|---|
| Hardness | 55-65 | HRC |
| Tensile failure load | 2100-2500 | MPa |
| Tensile failure load | 304-362 | psix10^3 |
| Exercise temperatures | 0/400 | ° C |
| Exercise temperatures | 32/752 | °F |
Diameters and grades available for AISI D2 steel ball
| Parameter | Value |
|---|---|
| Minimum diameter | 1 mm — 3/64′′′ |
| Maximum diameter | 150 mm — 6′′′ |
| Grades available | See International Standards |
| Precision standards | ISO 3290-1 / DIN 5401 / AFBMA |
Corrosion resistance of AISI D2 steel ball
D2 tool steel balls show a slightly better corrosion resistance compared to 420C martensitic stainless steel.
International standards for steel ball for AISI D2 utensils
| ITA | USA (AISI) | DIN (GER) | AFNOR (FRA) | UK | GOST (RUS) | GB (CHN) | JIS (JPN) |
|---|---|---|---|---|---|---|---|
| X155CrVMo121KU | D2/T30402 | 1.2379 | Z160CDV12 | BD2 | – | Cr12Mo1V1 | SKD 11 |
Applications of steel ball for AISI D2 utensils
Special bearings for use with high mechanical stresses in medium aggressive environments.
