H13
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Product Description:
H13 is a high-performance chromium-based hot work tool steel that is widely used for manufacturing tools and dies that operate under high temperatures and stress. Known for its excellent resistance to thermal fatigue, wear, and high-temperature strength, H13 is one of the most popular tool steels used in hot work applications, such as die-casting, extrusion dies, and forging tools. It offers a unique combination of toughness, heat resistance, and durability, making it suitable for tools that are subjected to thermal cycling and heavy mechanical stress.
Features:
- Excellent Thermal Fatigue Resistance: H13 is highly resistant to thermal fatigue, which makes it ideal for tooling used in applications that involve rapid heating and cooling cycles.
- Good Wear Resistance: The steel provides good wear resistance, allowing it to withstand the abrasive effects of high-stress environments.
- High-Temperature Strength: Retains its strength and hardness at elevated temperatures (up to 1000°F or 538°C), making it perfect for high-heat applications.
- Toughness and Durability: H13 has a balance of toughness and hardness, preventing premature cracking or failure under thermal and mechanical stress.
- Good Machinability: Can be machined and processed with conventional methods such as milling, turning, and grinding.
Specifications:
- ASTM A681: Standard Specification for Tool Steel, Hot Work, covering grades like H13.
- SAE J437: Standard for hot work tool steels, including H13.
- UNS T20813: Unified Numbering System designation for H13 tool steel.
Composition of H13 Tool Steel:
Element | Percentage |
---|---|
Carbon (C) | 0.32 – 0.45 |
Chromium (Cr) | 4.75 – 5.50 |
Molybdenum (Mo) | 1.20 – 1.75 |
Vanadium (V) | 0.80 – 1.20 |
Manganese (Mn) | 0.25 – 0.50 |
Silicon (Si) | 0.80 – 1.00 |
Phosphorus (P) | 0.03% max |
Sulfur (S) | 0.03% max |
Iron (Fe) | Balance |
Physical Properties:
Property | Value |
---|---|
Density | 7.85 g/cm³ |
Melting Point | 1400-1450°C (2552-2642°F) |
Hardness (Rockwell C) | 50-55 HRC |
Tensile Strength (Ultimate) | 1900 MPa (275,000 psi) |
Yield Strength | 1650 MPa (239,000 psi) |
Elongation | 8-10% |
Modulus of Elasticity | 210 GPa |