Hot die steel H13!
Hot die steel H13, also known as 1.2344, is a type of steel alloy that is widely used in the production of hot work dies, such as die-casting dies, forging dies, and extrusion dies.
Here are some key characteristics of hot die steel H13:
1. High hardness: H13 has a high hardness rating, typically in the range of 44-48 HRC, which makes it resistant to wear and tear.
2. High temperature resistance: H13 has a high temperature resistance, up to 550°C (1022°F), which makes it suitable for use in high-temperature applications.
3. Good toughness: H13 has good toughness, which means it can withstand impacts and stresses without breaking or deforming.
4. Resistance to thermal shock: H13 has a high resistance to thermal shock, which means it can withstand sudden changes in temperature without cracking or breaking.
5. *Good machinability*: H13 is relatively easy to machine, which makes it a popular choice for die makers.
Some common applications of hot die steel H13 include:
1. Die-casting dies: H13 is widely used in the production of die-casting dies, particularly for high-pressure die-casting applications.
2. Forging dies: H13 is used in the production of forging dies, where its high hardness and resistance to wear are beneficial.
3. Extrusion dies: H13 is used in the production of extrusion dies, where its high temperature resistance and resistance to wear are important.
4. Hot stamping dies: H13 is used in the production of hot stamping dies, where its high hardness and resistance to wear are beneficial.
Some of the benefits of using hot die steel H13 include:
1. Long tool life: H13 has a long tool life, which means that dies made from this material can be used for a large number of production cycles.
2. High precision: H13 can be machined to high precision, which makes it suitable for use in dies that require a high level of accuracy.
3. Good surface finish: H13 can be polished to a high finish, which is important for dies that require a smooth surface finish.
4. Resistance to heat checking: H13 has a high resistance to heat checking, which means it can withstand the high temperatures and stresses associated with hot work die applications.
| DIN | W.Nr | AISI/ASTM | JIS |
|---|---|---|---|
| X40CrMoV5-1 | 1.2344 | H-13 | SKD61 |
| C | Si | Mn | P (Max) |
S (Max) |
Cr | Mo | V |
|---|---|---|---|---|---|---|---|
| 0.35-0.42 | 0.80-1.20 | 0.25-0.50 | 0.03 | 0.03 | 4.80-5.50 | 1.20-1.50 | 0.80-1.15 |
| Property | 20°C | 100°C | 200°C | 500°C |
|---|---|---|---|---|
| Thermal expansion coefficient (10⁻⁶/K) | 11.3 | 11.6 | — | 13.0 |
| Thermal conductivity (W/m·K) | 18.8 | 19.0 | — | 25.1 |
| Young's modulus (kN/mm²) | 212 | 209 | — | 175 |
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