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| Customization: | Available |
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| Type: | Round Rod |
| Standard: | AISI, ASTM, DIN, JIS, GB |
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W4Mo3Cr4VSi Low-Alloy High-Speed Tool Steel
W4Mo3Cr4VSi (W4) is an economical low-alloy high-speed tool steel, offering high hardness, high-temperature hardness, strength, toughness, and wear resistance comparable to general high-speed steels. This material maintains excellent performance at high temperatures, making it suitable for high-strength cutting tools, molds, and precision machining applications. It combines high hardness with good toughness, effectively improving machining efficiency and extending tool life, making it a cost-effective choice.
| C | W | Mo | Cr | V | Co | Mn | Si |
|---|---|---|---|---|---|---|---|
| 0.88-0.98 | 3.50-4.30 | 2.50-3.50 | 3.50-4.20 | 1.00-1.20 | 7.75-8.75 | 0.20-0.40 | 0.50-1.00 |
| Type | Specification(mm) | Surface Condition |
|---|---|---|
| Cold-drawn Round Steel | φ2-10 | Black |
| Hot-rolled Round Steel | φ11-75 | Turned |
| Precision Forging Round Steel | φ80-120 | Turned |
| TW | 20 | 25 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
|---|---|---|---|---|---|---|---|---|---|---|
| 3 | √ | √ | √ | √ | ||||||
| 4~5 | √ | √ | √ | √ | √ | √ | ||||
| 6~13 | √ | √ | √ | √ | √ | √ | √ | √ | ||
| 14 | √ | √ | √ | √ | √ | √ | √ | √ | √ | |
| 15~18 | √ | √ | √ | √ | √ | √ | √ | √ | ||
| 19 | √ | √ | √ | √ | √ | √ | √ | |||
| 20 | √ | √ | √ | √ | √ | √ | √ | √ |


W4Mo3Cr4VSi High-Speed Steel in Application:
Machine saw blades
Drill bits
Woodworking planing knives
Mechanical blades
End mills
Machine taps
Mechanical parts requiring heat and wear resistance



Q4: What is your product packaging like?
A4: Our products are packaged accordingly in standard industrial packaging to ensure safety during transport. If you have special packaging requirements, please specify them when placing your order, and we will package your items accordingly.
Q5: What payment methods do you support?
A5: We accept a variety of payment methods, including T/T, L/C, Alipay, PayPal, etc. The specific payment method can be arranged flexibly based on the order amount and customer needs.