M42 High-Speed Steel Round Bar (SKH59/1.3247) for Cutting Tools
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| Customization: | Available |
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| Type: | Round Rod |
| Standard: | AISI, ASTM, DIN, JIS, GB |
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Basic Info.
- Model NO.
- M42 / W2Mo9Cr14VCo8 / SKH59 / 1.3247
- Technique
- Forged/Hot Rolled/Cold Drawn
- Shape
- Flat Bars/Plates/Blocks/Round Bars
- Surface Treatment
- Polished, Turned, Peeled, Ground, Black
- Special Use
- Mold Steel, High Speed Stee
- Application
- Tool Steel Bar
- Heat Treatment
- Annealed, Quenched, Tempered
- Delivery Time
- According to The Inventory Situation
- Product Application
- Cutting Tools, Mould, Punches, Blades
- Certificate
- ISO
- Price
- to Be Confirmed Based on Order Details
- Transport Package
- Standard Packaging
- Specification
- According to order
- Trademark
- ZEICIN
- Origin
- China
- HS Code
- 722810
- Production Capacity
- 10000 Ton / Year
Product Description
M42 High-Speed Steel Round Bar (SKH59 / 1.3247) for Cutting Tools
M42 steel (W2Mo10Cr4Co8) is a high-cobalt toughness high-speed steel, mainly used for high-toughness precision wear-resistant hardware cold stamping dies, and can also be used for cutting tools and knife cooling.
The M42 steel has a high hardness of 68~70HRC, good heat hardness, high temperature hardness, and easy grinding. but the toughness is slightly poor, and the lower limit should be used for quenching. Due to its good grindability, it can be used to manufacture a wide range of high-precision and complex tools.
Similar Grade
| Execution Standard | ZEICIN Grade | GB | AISI | JIS | DIN |
|---|---|---|---|---|---|
| GB/T9943-2008 | M42RE | W2Mo9Cr4VCo8 | M42 | SKH59 | 1.3247 |
Main Chemical Composition%
| C | W | Mo | Cr | V | Co | Al | Mn | Si | S | P |
|---|---|---|---|---|---|---|---|---|---|---|
| 1.05-1.15 | 1.15-1.85 | 9.00-10.00 | 3.50-4.25 | 0.95-1.35 | 7.75-8.75 | - | 0.15-0.40 | 0.15-0.65 | ≤0.03 | ≤0.03 |
Size
-
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- Round Bar/mm
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| 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 |
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- Specification for Hot-rolled flat bar in common use/mm (black surface)
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| TW | 20 | 25 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
|---|---|---|---|---|---|---|---|---|---|---|
| 3 | √ | √ | √ | √ | ||||||
| 4~5 | √ | √ | √ | √ | √ | √ | ||||
| 6~13 | √ | √ | √ | √ | √ | √ | √ | √ | ||
| 14 | √ | √ | √ | √ | √ | √ | √ | √ | √ | |
| 15~18 | √ | √ | √ | √ | √ | √ | √ | √ | ||
| 19 | √ | √ | √ | √ | √ | √ | √ | |||
| 20 | √ | √ | √ | √ | √ | √ | √ | √ |
M42 High-Speed Steel Heat Treatment Process
The hardening and tempering process can greatly improve the hardness and wear resistance, and toughness of M42 high-speed steel. The standard heat treatment process is shown below:
- Annealing:
To anneal the steel, stress relieve, and improve machinability.
- Quenching:
Increases hardness and wear resistance through rapid cooling
- Tempering:
Gets accomplished after quenching to relieve internal stress and adjust hardness for improved performance.
Heat treatment process reference
HSS M42 Isothermal spheroidizing
Annealing-Quenching-Tempering graph (HRC:65-67)
Performance After Heat Treatment
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Remarkable Hardness:
65-67 HRC, very good for demanding cutting tasks.
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Superior Wear Resistance:
Dense matrix structure designed for large-scale, long-time cutting.
- Reliable Toughness:
Stress-relieved material that can withstand high impact for new machining styles.
Production process
Major Equipment
2. ESR
3. 5T Forging Machine
4. Vacuum Annealing Furnace
6. Rolling Mill
7. Drawing Mill
8. Spray Forming
Microstructure
Working with M42 High-Speed Steel in Application:
Applicable to the production of drill, tap, screw die, milling cutter, gear cutter, cold die mold and other cutting tools, and molds with high wear resistance and strength.
- Cutting Tools
Geared for use in drills, taps, end mills, and reamers, a normal cutting edge provides excellent sharpness and wear.
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Precusuib Dies
Best for punches, stamping dies, and forming tools in high-stress applications.
- Industrial Blades
Widely utilized for shear blades and machine knives to cut accurately.



Q1: Do you accept trial orders?
A1: Yes, we accept trial orders if the exact size is in stock.
Q2: What is your delivery time?A2: If the goods are in stock, delivery time is generally 5-15 days. If the goods are not in stock, it may take 15-20 days, depending on the order quantity.
Q3: Do you offer discounts for bulk orders?
A3: Yes, we offer discounts for bulk orders. The specific discount will depend on the order quantity and cooperation terms. Please feel free to contact us for more information.
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.
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