24 July 2021 Cold Heading Steel Bar
DIN 1.2436 Cold Heading Steel Bar
DIN 1.2436 is a kind of German DIN(equivalent to AISI D6) standard extra-high toughness chromium steel, cold work die steel, with high strength, hardenability, wear resistance and other characteristics. Has extremely high wear resistance and cutting edge retention. It is a widely used cold work die steel with high strength, good hardenability and good wear resistance, but poor impact toughness. It is mainly used for cold punching dies and punches, cold cutting scissors, drill sleeves, gauges, wire drawing dies, stamping dies, thread rolling boards, drawing dies, and thread rolling dies with low impact load and high wear resistance.
Chemical Composition:
C | Si | Mn | P | S | Cr | W |
2.00-2.30 | 0.10-0.40 | 0.15-0.45 | ≤0.030 | ≤0.030 | 11.0-12.0 | 0.60-0.80 |
Equivalent grades:
| China GB | German DIN Material | German DIN Standard | Italian UM | Xipan UNE | Japan JIS | Sweden ASSAB | Sweden SS | Britis BS | AISI |
| Cr12W | DIN 1.2436 | X210CrW12 | X215CrW121Ku | X210CrW12 | SKD2 | XW5 | 2710 | BS1 | D6 |
Mechanical Properties:
| Properties | Metric | Imperial |
| Compressive strength | 1320 MPa | 191000 psi |
| Modulus of elasticity | 194 GPa | 28100 ksi |
| Hardness, Rockwell C | 46 | 46 |
Thermal Properties:
| Properties | Metric | Imperial |
| Thermal expansion co-efficient (@21-400°C/68-752°F) | 10.8 µm/m°C | 6 µin/in°F |
| Thermal conductivity (@20°C/68°F) | 20.5 W/mK | 142 BTU.in/hrft².°F |
Forging of DIN 1.2436 Steel
DIN 1.2436 tool steel is heated slowly and uniformly to 700°C (1292°F) and then more rapidly to 900-1050°C (1652-1922°F).
AISI/SAE D6 Tool Steel Heat Treatment
| Soft annealing ℃ | Cooling | Hardness HB | |||||
| 800 – 840 | Cool sloly in furnace | max. 255 | |||||
| Hardening from ℃ | in | Hardness after quenching HRC | |||||
| 940 – 980 | oil, air or warm bath | 64 – 66 | |||||
| 960 – 1000 | 500 – 550 C | 64 – 66 | |||||
| Tempering | ℃ | 100 | 200 | 300 | 400 | 500 | 600 |
| HRC | 63 | 62 | 60 | 58 | 56 | 48 | |
Application:
- All kinds of cold stamping dies with high wear resistance and long life, as well as cold cutting blades, thread rolling boards, etc.
- Suitable for tool molds with complex shapes and easy deformation.
- Mainly suitable for medium load stamping dies, punching stainless steel, copper, silicon, aluminum
- Used in stamping dies for stainless steel, silicon steel (medium load), and deep cup stamping dies.