Smelting technology
Release Date:
2026-01-20
Wear and Corrosion Resistance Rating Table
A grade table for wear and corrosion resistance of standard components is provided, and non-standard components can be custom-made to meet various production requirements.
Corrosion resistance
Chemical composition |
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| Product Name | C | Yes | Mn | P | S | Cr | Me | V | Number | Hardness |
| 101 | 2.4–2.5 | 0.4-1.0 | 0.4-0.6 | ≤0.03 | ≤0.03 | 25-27 | 0.4-0.6 | 0.2-0.5 | 58-60 | |
| WR4 | 1.95–2.05 | 0.4-0.8 | 0.4-0.6 | ≤0.03 | ≤0.03 | 4-5 | 1.4–1.6 | 9-10 | 58-60 | |
| WR5 | 2.5–2.7 | 0.4-0.8 | 0.4-0.6 | ≤0.03 | ≤0.03 | 4-5 | 1.3–1.5 | 9-10 | 60-62 | |
| WR7 | 2.95–3.05 | 0.4-0.8 | 0.4-0.6 | ≤0.03 | ≤0.03 | 4-5 | 1.3–1.5 | 12.5–13.5 | 60-62 | |
| WR13 | 2.65–2.75 | 0.4-1.0 | 0.4-0.6 | ≤0.03 | ≤0.03 | 23.5–24.5 | 1.5–1.7 | 3.5–4.5 | 0.8-1.0 | 59-61 |
| WR14 | 2.25–2.35 | 0.4-1.0 | 0.4-0.6 | ≤0.03 | ≤0.03 | 18.5–19.5 | 1.8–2.0 | 1.8–2.0 | 1.8–2.0 | 58-60 |
Performance Comparison
A direct comparison of the physical properties of conventional metallurgical materials (cut and polished) versus powder metallurgical materials (pressed and sintered) more clearly highlights the core differences between the products, emphasizing the respective advantages in mechanical performance and providing a more scientifically grounded basis for production decisions.
Comparison Table of Advantages: Metal Smelting vs. Metal Powders |
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| Metal Smelting (WR5) | Metal Powder (WR5) | W6(6542) | |
| Production process | Electric Arc Furnace Smelting + Casting + Hot Forging and Rolling | Vacuum Atomization Powdering + Hot Isostatic Pressing | Electric Arc Furnace Smelting + Casting + Hot Forging and Rolling |
| Metallographic structure | The vanadium carbide particles are slightly larger (10–50 μm), Torsional strength: greater than 40% of gold powder, approximately 1800 MPa. Hardness: 60–62 |
Vanadium carbide is in a fine morphology (1–5 μm). The microstructure is uniform, with a small number of micropores present inside. Torsional strength: 1300 MPa; Hardness: 58–60 |
Tungsten carbide particles are slightly larger (10–50 μm). Torsional strength: 1100 MPa Hardness: 65–70 |
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| Applicable Operating Conditions | Suitable for: ultra-high torque, crack resistance, and high depth-to-diameter ratio; friction and wear performance is approximately 20% better than that of gold powder. | Suitable for: high-speed operation, large aggregate particle size, and severe spalling conditions. Friction and wear rate: approximately 70% of that for metal smelting. | Applicable to: high-speed operating conditions. Friction and wear: WR4 is 1.7 times that of 6542. Spalling wear: 6542 is approximately 50% of that of gold powder. |
Material Comparison
Code Material Process Hardness Wear Resistance Corrosion Resistance Applicable Operating Conditions |
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| Conventional materials | 38Cr | Nitrided steel | Surface hardening | HRC58-60 | ★ | ★★ | · Mildly corrosive service conditions with minimal wear (color masterbatches, TPU, extruded feed, etc.) | |
| 6542 | High-speed steel | Electroslag Remelting | HRC58-60 | ★★★ | ★ | ·Nylon-modified materials/engineering plastics/recycled granules, etc. | ||
| Threaded component | Self-Developed Recommended Materials | WR4 | High-vanadium high-speed steel | Vacuum smelting | HRC57-63 | Four stars | ★★ | ·Nylon reinforced with fibers/aluminum-plastic composite/Nylon reinforced with carborundum/color masterbatch/engineering plastics |
| WR5 | High-vanadium high-speed steel | Powder Metallurgy | HRC58-64 | ★★★★★ | ★★ | ·Nylon reinforced with fibers/aluminum-plastic composite/Nylon reinforced with carborundum/color masterbatch/engineering plastics | ||
| WR7 | High-vanadium high-speed steel | Vacuum smelting | HRC58-64 | ★★★★★★ | ★★ | ·Nylon reinforced/wood-plastic/aluminum-plastic/engineering plastics | ||
| WR14 | Powder Metallurgy Steel | Powder Metallurgy | HRC59-63 | Four stars | ★★★ | ·Lithium-battery slurry / Fluoroplastic powder / PC+ABS alloy / Phosphorus-based flame retardant / Petrochemical | ||
| Barrel | Conventional materials | 101 | Mold steel | Common Casting | HRC57-61 | ★★ | ★★ | ·Nylon reinforced with fibers / Wood-plastic composite / Aluminum-plastic composite / Nylon reinforced with alumina / Color masterbatch / Engineering plastics |
| N60 | Nickel-based alloy | Vacuum Sintering | HRC52-55 | ★★ | Four stars | ·Fluoroplastic particles/Petrochemicals/Lithium-battery slurry | ||
| Lining | Self-Developed Recommended Materials | WR13 | High-vanadium high-speed steel | Vacuum smelting | HRC59-63 | Four stars | ★★★ | ·Lithium-battery slurry / Fluoroplastic powder / PC+ABS alloy + phosphorus-based flame retardant / Petrochemical |
| WR13 | Powder Metallurgy Steel | Powder Metallurgy | HRC59-63 | Four stars | ★★★ | |||
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Contact Information
Bowang District, Ma'anshan City, Anhui Province, China
