- Black-Brown Crystal Color: Indicates high purity and a stable crystal structure, suitable for demanding industrial grinding applications.
- High Strength & High Toughness: Maintains particle integrity under heavy grinding loads and elevated processing temperatures.
- Excellent Thermal Stability: Ensures consistent performance in high-speed and high-temperature grinding conditions.
- Sharp Crystal Structure: Provides strong cutting ability and high material removal efficiency.
- High Surface Cleanliness: Minimizes bond contamination and improves tool consistency and service life.
CBN-B50M Metal Bond System
20+ Years Experience
Ultra-Precision Quality
Customized Solutions
CBN-B50M is a high-strength micron CBN powder engineered for precision grinding processes that demand excellent thermal stability, consistent cutting performance, and reliable surface quality. With sharp crystal morphology, controlled particle size distribution, and high surface cleanliness, this grade delivers stable grinding force and efficient material removal in vitrified and metal bond systems, as well as in PCBN-related manufacturing.
Features
Specifications
Available Grit Sizes
- Ultra-Fine Grits (0–1μm):
Designed for ultra-precision finishing and polishing, enabling controlled material removal and stable surface quality in high-accuracy lapping and polishing of ferrous materials, cemented carbides, and PCBN-related applications. - Fine Grits (1–10μm):
Suitable for fine grinding and pre-finishing processes, offering sharp cutting action and uniform results in vitrified and metal bond systems for hardened steels and precision components. - Medium Grits (10–40μm):
Engineered for general-purpose grinding and lapping, providing a balance between cutting efficiency and surface control in bonded CBN tools used for ferrous and high-hardness materials. - Coarse Grits (40–60μm):
Applied in rough grinding and high stock removal operations, delivering strong grinding force and thermal stability for demanding industrial grinding conditions.
Comparison Table of Micron Diamond Powder Particle Size
| China Standard JB/T 17990-1790 |
US / International Standard ANSI B74-1981 |
Japan Standard Mesh JIS 6002-63 |
Median Size D50 (μm) |
|---|---|---|---|
| W0.2 | 0–0.2 | 80000 | 0.1 |
| W0.25 | 0–0.25 | 60000 | 0.11–0.20 |
| W0.5 | 0–0.5 | 30000 | 0.20–0.30 |
| W1 | 0–1 | 15000 | 0.6–0.8 |
| W1.5- | 0–2 | 13000 | 1.0 |
| W1.5 | 1–2 | 12000 | 1.1–1.3 |
| W2.5 | 1–3 | 10000 | 1.6–1.8 |
| W3 | 2–3 | 7000 | 1.9–2.1 |
| W3.5 | 2–4- | 6500 | 2.2–2.6 |
| W3.5 | 2–4 | 6000 | 2.6–3.0 |
| W4 | 2–5 | 5000 | 3.1–3.4 |
| W5 | 3–6 | 4000 | 3.5–4.5 |
| W6 | 4–6 | 3500 | 4.4–5.0 |
| W7 | 4–8 | 3000 | 5.0–6.0 |
| W10- | 4–9 | 2500 | 6.1–6.5 |
| W10 | 5–10 | 2000 | 6.5–7.3 |
| W10+ | 6–12 | 1800 | 7.3–8.3 |
| W12 | 8–12 | 1600 | 8.3–9.0 |
| W14 | 7–14 | 1500 | 9.1–10.5 |
| W14 | 8–16 | 1300 | 10.0–12.0 |
| W20- | 10–20 | 1200 | 12.5–15.0 |
| W20 | 12–22 | 1000 | 15.0–17.0 |
| W20+ | 15–25 | 800 | 18.0–20.0 |
| W28 | 20–30 | 700 | 20–23 |
| W28+ | 22–36 | 600 | 23–26 |
| W40- | 20–40 | 500 | 26–29 |
| W40 | 30–40 | 450 | 29–32 |
| W40+ | 35–45 | 400 | 32–36 |
| W50 | 36–54 | 37–43 | |
| 325/400 | 320 | 43–48 | |
| 270/325 | 280 | 48–55 | |
| 230/270 | 240 | 56–64 | |
| 200/230 | 200 | 65–73 |
Applications
Ferrous Metals
Suitable for grinding hardened steels and iron-based materials requiring thermal stability and controlled wear.
- Hardened steel grinding
- Bearing steel and tool steel processing
Automotive
Applied in grinding processes for high-load automotive components where consistency and efficiency are required.
- Transmission and engine component grinding
- Precision finishing of hardened parts
Aerospace
Used for grinding high-performance ferrous components demanding thermal stability and process reliability.
- Aerospace-grade steel component grinding
- High-precision structural part finishing