- As forged bars in either as-forged or rough-machined condition
- As discs sawn off the bar with a diameter of up to 1,650mm (65”)
WE SUPPLY OUR SPECIAL ENGINEERING STEEL …
We’re stocking the most common Engineering Steel Grades and Dimensions at our production site in Wetzlar, Germany.
Engineering Steel can be supplied in round-, square- or flat dimensions with- or without pre-drilled Bores
Gear Steel
Bearing Steel
Mining & Drilling
Oil & Gas
General Engineering
Buderus Edelstahl recommends the following Engineering Steel for different applications:
| Mat.-No. | EN/DIN – designation | Vorschrift Regulation | AFNOR | AISI | Material characteristics | Delivered condition | Application | C | Si | Mn | P | S | Cr | Ni | Mo | V |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7131 | 16MnCr5 | EN 10084 | 16 MC 5 | — | Case hardenable, suitable for upsetting | Annealed | Gears | 0.14-0.19 | max.0.4 | 1.0-1.3 | max.0.035 | max.0.035 | 0.8-1.1 | — | — | — |
| 6580 | 30CrNiMo8 | EN 10083 | 30 CND 8 | — | Suitable for quenching and tempering | Hardened and tempered to 1,100-1,250 MPa | Mechanical engineering | 0.26-0.33 | max.0.4 | 0.3-0.6 | max.0.035 | max.0.035 | 1.8-2.2 | 1.8-2.2 | 0.30-0.50 | — |
| 6582 | 34CrNiMo6 | EN 10083 | 34 CND 6 | — | Suitable for quenching and tempering | Annealed | Mechanical engineering | 0.3-0.38 | max.0.4 | 0.5-0.7 | max.0.035 | max.0.035 | 1.4-1.7 | 1.4-1.7 | 0.15-0.3 | — |
| 6959 | 35NiCrMoV12-5 | — | — | — | Suitable for quenching and tempering | Hardened and tempered to 1,100-1,250 MPa | Mechanical engineering | 0.3-0.4 | 0.15-0.35 | 0.4-0.7 | max.0.015 | max.0.015 | 1.0-1.4 | 2.5-3.5 | 0.35-0.6 | 0.08-0.2 |
| 6981 | 21CrMoNiV4-7 | — | — | — | Elevated temperature resistant | Hardened and tempered | Mechanical engineering | 0.17-0.25 | 0.15-0.35 | 0.35-0.85 | max.0.03 | max.0.035 | 0.9-1.2 | 0.2-0.8 | 0.65-0.8 | 0.25-0.35 |
| 7225 | 42CrMo4 | EN 10083 | 40 CD 4 | 4140 | Suitable for quenching and tempering | Hardened and tempered | Turbine shafts/screws | 0.38-0.45 | max.0.4 | 0.6-0.8 | max.0.035 | max.0.035 | 0.9-1.2 | — | 0.15-0.30 | — |