GCDM20 – Metal-Bond Grade Micron Diamond Powder

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Product Overview

GCDM20 is a higher-strength monocrystalline micron diamond powder developed for precision lapping, polishing and metal-bond abrasive applications requiring stable particle geometry, controlled wear and longer abrasive life. Its regular blocky morphology and lower friability provide improved particle stability during extended processing of cemented carbide, advanced ceramics, sapphire and other hard materials.

Features

Higher Crystal Strength:
Provides improved particle stability during extended processing cycles.
Regular Blocky Morphology:
Supports stable abrasive contact and predictable material removal.
Lower Friability:
Helps maintain particle geometry under sustained lapping and bonded-tool conditions.
Controlled PSD and Oversize:
Supports consistent cutting depth and improved surface control.

Specifications

Diamond Type	HPHT Monocrystalline Micron Diamond
Product Series	Monocrystalline Micron Diamond Powder
Grade	GCDM20
Grade Direction	Metal-Bond Grade / Higher-Strength Grade
Relative Crystal Strength	High
Friability	Low to Controlled
Particle Morphology	Regular blocky monocrystalline particles
Selection Focus	Particle stability, controlled wear and abrasive life
Typical Processes	Precision Lapping / Polishing / Metal-Bond Precision Tools

Comparison Table of Micron Diamond Powder Particle Size

China Grade Industry Reference	Nominal Size Range (μm)	Mesh Reference (#)	Typical 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	320	37–43
325/400 Mesh	—	320	43–48
270/325 Mesh	—	280	48–55
230/270 Mesh	—	240	56–64
200/230 Mesh	—	200	65–73