Tool and Die Steel H13 Bars are well-known for their remarkable toughness, impressive resistance to thermal fatigue, and durability against wear, making them a top choice for hot-work tooling applications. This chromium-molybdenum-vanadium alloyed hot-work steel is designed to keep its hardness and dimensional stability, even when faced with extreme temperatures. This makes H13 perfect for die casting, forging, extrusion, and hot stamping tasks. These bars excel under repeated thermal and mechanical stress, ensuring that your tooling remains reliable and long-lasting. Plus, with their excellent machinability, stability during heat treatment, and resistance to deformation, Tool and Die Steel H13 Bars are the go-to option for industries that demand durability and precision.
H13 Bars are made from high-carbon steel that’s alloyed with chromium, molybdenum, vanadium, and trace amounts of manganese and silicon. This unique blend gives them outstanding mechanical properties, including high toughness, excellent thermal fatigue resistance, and strong wear resistance. H13 steel maintains its hardness even at elevated temperatures, which is crucial for reliable performance during hot working processes. Its well-balanced mix of strength, toughness, and dimensional stability makes H13 Bars perfect for creating hot-work dies, extrusion tools, forging dies, and other high-stress industrial components.
| ASTM A681 | C | Mn | P | S | Si | Cr | V | Mo | ||||||
| H13 | 0.32 | 0.45 | 0.2 | 0.6 | 0.03 | 0.03 | 0.8 | 1.25 | 4.75 | 5.5 | 0.8 | 1.2 | 1.1 | 1.75 |
| DIN ISO 4957 | C | Mn | P | S | Si | Cr | V | Mo | ||||||
| 1.2344 /X40CrMoV5-1 | 0.35 | 0.42 | 0.25 | 0.5 | 0.03 | 0.02 | 0.8 | 1.2 | 4.8 | 5.5 | 0.85 | 1.15 | 1.1 | 1.5 |
| JIS G4404 | C | Mn | P | S | Si | Cr | V | Mo | ||||||
| SKD61 | 0.35 | 0.42 | 0.25 | 0.5 | 0.03 | 0.02 | 0.8 | 1.2 | 4.8 | 5.5 | 0.8 | 1.15 | 1.0 | 1.5 |
| Properties | Metric | Imperial |
| Tensile strength, ultimate (@20°C/68°F, varies with heat treatment) | 1200 – 1590 MPa | 174000 – 231000 psi |
| Tensile strength, yield (@20°C/68°F, varies with heat treatment) | 1000 – 1380 MPa | 145000 – 200000 psi |
| Reduction of area (@20°C/68°F) | 50.00% | 50.00% |
| Modulus of elasticity (@20°C/68°F) | 215 GPa | 31200 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Country | USA | German | Japan |
| Standard | ASTM A681 | DIN EN ISO 4957 | JIS G4404 |
| Grades | H13 | 1.2344/X40CrMoV5-1 | SKD61 |
| Properties | Conditions | ||
|---|---|---|---|
| T (ºC) | Treatment | ||
| Thermal expansion | 10.4 x 10-6/ºC | 20-100 | – |
| Thermal conductivity | 28.6 W/mK | 215 | – |
When choosing Tool and Die Steel H13 bars, consider factors such as hardness, heat resistance, wear resistance, toughness, machinability, and the specific requirements of the application, including temperature and load conditions.
Tool and Die Steel H13 bars offer limited corrosion resistance due to their high alloy content, but they can still be susceptible to rusting in harsh environments. To improve corrosion resistance, they may require additional surface treatments like coating or regular maintenance to prevent degradation.
Tool and Die Steel H13 bars are primarily designed for tooling and high-temperature applications. While strong, they are not ideal for structural applications due to their specific properties tailored for manufacturing tools.
These bars are widely utilized across various industries, including automotive, aerospace, die casting, forging, and heavy machinery. Their exceptional thermal fatigue resistance and wear characteristics make them ideal for die-casting molds, extrusion dies, hot forging tools, and hot stamping dies. H13 Bars also shine in precision machining, fabrication, and high-volume production settings, ensuring a long service life and consistent performance. With their ability to endure extreme temperatures, mechanical stress, and repeated thermal cycling, Tool and Die Steel H13 Bars truly stand out in the industrial landscape.






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