JIS A681 Hot Work Tool Round Bar H21 Die Steel Mold Steel ASTM FORGED
JIS A681 Hot Work Tool Round Bar - H21 Die Steel
The JIS A681 H21 Die Steel round bar is a premium hot work tool steel designed for demanding applications requiring excellent heat resistance and durability. This high-performance steel is ideal for manufacturing tools and components that operate under high temperatures, such as extrusion dies, forging dies, and hot work tools. Baobin Group offers this high-quality steel in various sizes and custom specifications to meet your specific requirements.
Product Specifications
| Property | Specification |
|---|---|
| Material Standard | JIS A681, ASTM A681 |
| Material Grade | H21 Die Steel |
| Manufacturing Process | Forged |
| Available Sizes | Custom sizes available (typically 10mm to 300mm diameter) |
| Length | Custom lengths available (typically 1m to 6m) |
| Surface Finish | Black, Bright, or Custom Finish |
| Hardness | 28-34 HRC (can be heat treated to higher hardness) |
| Tensile Strength | 1000-1200 MPa |
| Yield Strength | 800-1000 MPa |
| Elongation | 12-18% |
| Impact Strength | Good impact resistance at elevated temperatures |
| Delivery Time | 7-14 days for standard sizes (custom orders may vary) |
Certifications
Customization Options
Baobin Group offers comprehensive customization services for our JIS A681 H21 Die Steel round bars, including:
- Custom diameters and lengths
- Special surface treatments
- Heat treatment to specific hardness levels
- Custom packaging and labeling
- Special inspection and testing requirements
Frequently Asked Questions
H21 Die Steel is primarily used for hot work tools and dies that require excellent heat resistance and durability. Common applications include extrusion dies, forging dies, die casting dies, and other tools that operate at elevated temperatures.
Yes, we can provide H21 Die Steel in various hardness levels based on your specific requirements. The standard hardness range is 28-34 HRC, but we can perform heat treatment to achieve higher hardness levels when needed.
For standard sizes, the lead time is typically 7-14 days. For custom sizes or special requirements, the lead time may be longer depending on the complexity of the order. We recommend contacting our sales team for a precise quote and delivery schedule.
Yes, we provide comprehensive material test reports with all our products, including chemical composition analysis, mechanical properties, and heat treatment records. We can also provide additional testing if required by our customers.
