COLD WORK TOOL STEELS
BÖHLER cold-working steels are used to produce tools that are not generally exposed to surface temperatures of more than 200°C. The main applications here are punching, fine blanking sheet metal forming, and massive forming. High hardness and wear resistance, resistance to fracture, low dimensional changes under heat treatment, and sufficient machinability are some of the most critical properties of these steels. And these are the properties that BÖHLER is continuously optimizing and developing, with the satisfaction of its customers in mind.
The reason for using quality tool materials for Cold Work is obvious, as the material amount of a high performance tool is often only 5% of the total value of a tool, yet it extends the lifetime of tools many times, it’s a direct commercial advantage in production. The products produced in electric arc furnace are described as conventionally molten materials and represent the “basic materials” for usual stress with main properties such carbide distribution in lines and sufficient purity degree.
STEEL PROPERTIES
BÖHLER grade | Type of alloy % (C - Cr - Mo - V - W) | Others | DIN | EN | AISI | ||||
 | 2.00 | 11.50 | - | - | - | - | 1.2080 | X210Cr12 | ~ D3 |
 | 1.55 | 11.50 | 0.75 | 0.75 | - | - | 1.2379 | X155CrVMo12-1 | D2 |
 | 1.00 | 5.20 | 1.10 | 0.25 | - | + Al | 1.2363 | X100CrMoV5-1 | A2 |
 | 0.82 | 8.00 | 1.60 | 0.60 | - | + Al | Patended | Patended | - |
 | 0.63 | 1.10 | - | 0.18 | 2.00 | - | 1.2550 | 60WCrV7 | ~ S1 |
 | 0.45 | 1.30 | 0.25 | - | - | Ni = 4.00 | 1.2767 | 45NiCrMo16 | - |
 | 1.10 | 8.30 | 2.10 | 0.50 | - | + Al | Patended | Patended | - |
 | 1.25 | 8.75 | 2.70 | 1.18 | - | + Al | Patended | Patended | - |
MICROCLEAN
BÖHLER grade | Type of alloy % (C - Cr - Mo - V - W) | Others | DIN | EN | AISI | ||||
 | 2.45 | 4.15 | 3.75 | 9.00 | 1.00 | Co = 2.00 | Patended | Patended | - |
 | 1.40 | 6.40 | 1.50 | 3.70 | 3.50 | + Nb | Patended | Patended | - |
 | 0.85 | 4.35 | 2.80 | 2.10 | 2.55 | Co = 4.50 | Patended | Patended | - |
OTHER PROPERTIES
BÖHLER grade | Hardness after | Hardening | Quenchant | Obtainable | Average Rockwell C hardness after tempering at °C (100 - 200 - 300 - 400 - 500 - 520 - 550) | ||||||
| | max. 248 HB | 940 – 970 °C | Oil, Air¹, | 57 – 62 HRc | 64 | 62 | 59 | 57 | - | - | - |
 | max. 250 HB | 980 – 1010 °C | Oil, Air, Gas, Salt bath³ | 63 – 65 HRc | 64 | 62 | 60 | 58 | - | - | - |
 | max. 250 HB | 950 – 980 °C | Oil, Air, Gas, Salt bath³ | 64 – 64 HRc | 65 | 63 | 61 | 60 | - | - | - |
| | max. 250 HB | 1020 – 1040 °C | Oil, Air, Gas, Salt bath² | 58 – 61 HRc | 63 | 61 | 59 | 58 | - | - | - |
 | max. 235 HB | 830 – 860 °C | Oil | 59 – 62 HRc | 61 | 60 | 57 | 51 | - | - | - |
| | max. 235 HB | 1040 – 1060 °C | Oil, Air, Gas, Salt bath | 57 – 63 HRc | see tempering chart | - | - | - | - | - | - |
| | max. 240 HB | 1030 – 1060 °C | Oil, Air, Gas, | 55 – 61 HRc | see tempe- | - | - | - | - | - | - |
| | max. 250 HB | 1040 – 1080 °C | Oil, Air, Gas, | 57 – 63 HRc | see tempering chart | - | - | - | - | - | - |
 | max. 280 HB | 1030 – 1180 °C | Oil, Gas | 58 - 64 HRc | see tempering chart | - | - | - | |||
| | max. 225 HB | 870 – 900 °C | Oil | 53 – 59 HRc | 60 | 59 | 56 | 53 | - | - | |
 | max. 220 HB | 780 – 820 °C | Oil, Salt bath (200 – 250 °C) | 63 – 65 HRc | 64 | 62 | 58 | 52 | - | - | - |
| | max. 280 HB | 1030 – 1080 °C | Oil, Gas | 58 – 64 HRc | see tempering chart | - | - | - | - | - | - |
| | max. 280 HB | 1030 – 1180 °C | Oil, Gas | 58 – 64 HRc | see tempering chart | - | - | - | - | - | - |
¹ Air (< 25 mm Ø)
² Salt bath (220 – 250 / 500 – 550 °C)
³ Salt bath (500 – 550 °C)