SKD61 is a type of steel that's good for tools that get really hot and then cool down a lot. It's made to meet JIS G4404 standards. It's strong at high temperatures, tough, and doesn't wear out easily from the heat. This helps tools keep their shape and stay in good condition.
It works well because of what it's made of. It has chromium to handle the heat, molybdenum to stay strong when it's hot, and vanadium to resist wear and keep its structure stable. It's made with careful steelmaking to have a clean inside and consistent strength.
SKD61 comes in a soft state so it's easy to work with. You can heat it up to make it harder and last longer. This makes it a dependable choice for tools used in hot conditions where they need to last.
Product Details
Specifications & Technical Parameters
| Standards | JIS G4404 SKD61, ASTM A681 H13 (equivalent), DIN EN ISO 4957 1.2344, GB 4Cr5MoSiV1 |
| Round bar diameter | 20 mm – 500 mm |
| Flat bar thickness | 20 mm – 300 mm |
| Plate thickness | up to 400 mm |
| Hardness | 48 – 52 HRC |
| Tensile Strength | ≥1300 MPa |
| Impact Toughness | Good stability after proper tempering |
| Thermal Stability | Suitable for long-term hot work conditions |
Typical chemical composition(%)
| Carbon (C) | 0.35 – 0.42 |
| Chromium (Cr) | 4.8 – 5.5 |
| Molybdenum (Mo) | 1.2 – 1.5 |
| Vanadium (V) | 0.8 – 1.2 |
| Silicon (Si) | 0.8 – 1.2 |
| Manganese (Mn) | ≤0.5 |
Features and Advantages
01
SKD61 is heat-resistant
It can be heated and cooled many times without failing. It also resists heat cracks because of how it's made, which is great for die casting and forging.
02
It's also tough and resists cracks
Unlike tool steels that have more carbon and can get brittle, SKD61 Tool Steel is pretty tough. This means your tool is less likely to break when hit or exposed to uneven heat.
03
Heat treating it is reliable
You'll get the same results each time you heat treat SKD61. It gets to a stable hardness and doesn't change shape easily, which is super important for making accurate tools.
Our Strengths
We know a lot about hot work tool steels, so we can help customers with more than just getting materials. We get how SKD61 performs in actual tools. We work with reliable steel suppliers to keep the chemistry and structure consistent. Jiangsu CunRui Metal Products Co., Ltd has a managed inventory, good processing partners, and experience exporting. That means we can deliver SKD61 Tool Steel that gets you what you need, when you need it, without any hassle.
Applications
Hot Forging and Extrusion
Automotive Manufacturing
Energy and Industrial Equipment
Service & Support
At Jiangsu CunRui Metal Products Co., Ltd, we provide practical, product-focused services for SKD61 Tool Steel customers:
- Supply in annealed condition with uniform hardness for easier machining
- Custom cutting of bars and plates to reduce customer processing time
- Heat treatment coordination, including hardening and tempering based on application needs
- Ultrasonic testing and surface inspection to ensure internal quality
- Clear material identification and documentation for traceability
FAQ
Q: What's SKD61 Tool Steel good for?
A: It's mostly for hot stuff like die casting, forging, extrusion, and even plastic molds that get really hot.
Q: How does SKD61 usually come?
A: It usually comes soft, ready to be shaped. Then, you heat treat it to fit what you need it for.
Q: Does SKD61 need any special heating?
A: Just regular heating and cooling methods. Keeping the temp steady is key to getting it hard and strong.
Q: Can I get SKD61 in big sizes?
A: Sure. We got bars and plates in tons of sizes, including big ones, if we have them.
Q: Do you provide inspection reports with the material?
A: Yes. Mill test certificates are provided, and third-party inspection can be arranged upon request.
Hot Tags: skd61 tool steel, China skd61 tool steel manufacturers, factory, A2 Tool Steel Bar, D2 Steel, O1 Tool Steel, O1 Tool Steel Bar, A2 Tool Steel Plate, A2 Steel
