HDGN Diamond Micron Powder (Black)
HDGN Series / Grain size W50 - W1 / Monocrystalline
HDGN Diamond Micron Powder (Black)
HDGN Diamond Micron Powder (Black) is a monocrystalline grade from the HDGN series, produced factory-direct at our own base in Zhengzhou, Henan - the Diamond Capital of China. Standard grain size range: W50 - W1. Each batch is checked for particle size distribution before packing, and can be supplied in trial quantities for process validation.
Advantage
- Black monocrystalline micron grade on the standard W50 to W1 ladder
- Free-settling classification with PSD checked before packing
- Batch label carries model, grain size, batch number and net weight
- Cost-effective route where a black particle is acceptable in the process
- Ships in 1 to 2 working days from stock
Send your workpiece material, target surface finish and order quantity — we confirm the matching grade and sample route within 24 hours.
Product Overview
HDGN Diamond Micron Powder (Black) is the black micron grade graded on the same ladder as the yellow grades, W50 down to W1. It suits cost-sensitive lapping and polishing where a black particle is acceptable in the process.
The grade is classified by free settling, checked for particle size distribution and packed with a batch label showing model, grain size, batch number and net weight.
Tell us the D50 and top cut you need and we will confirm the grade against the black feed we have in stock.
Standard Grain Size Chart
Our synthetic diamond micron powder is graded to the Chinese national standard ladder, with the matching international size range and mesh number shown alongside each grade. The ladder runs continuously from W0.25 (0 – 0.25 µm) up to W50 (36 – 54 µm).
| GradeChinese standard | Size range (µm)International standard | MeshSieve no. | Typical use |
|---|---|---|---|
| Sub-micronW0.25 – W1.5-Mirror finish and super-finishing | |||
| W0.25 | 0–0.25 | 60,000 | Mirror finish, super-finishing |
| W0.5 | 0–0.5 | 30,000 | Mirror finish, super-finishing |
| W1 | 0–1 | 15,000 | Mirror finish, super-finishing |
| W1.5- | 0–2 | 13,000 | Mirror finish |
| W1.5 | 1–2 | 12,000 | Mirror finish |
| W2.5 | 1–3 | 10,000 | Mirror finish |
| Fine micronW3 – W7Precision polishing where scratch depth matters | |||
| W3 | 2–3 | 7,000 | Mirror to precision polishing |
| W3.5 | 2–4 | 6,500 / 6,000 | Precision polishing |
| W4 | 2–5 | 5,000 | Precision polishing |
| W5 | 3–6 | 4,000 | Precision polishing |
| W6 | 4–6 | 3,500 | Precision polishing |
| W7 | 4–8 | 3,000 | Precision polishing |
| Medium micronW10 – W20+General polishing and lapping | |||
| W10 | 4–9 / 5–10 / 6–12 | 2,500 / 2,000 / 1,800 | General polishing |
| W12 | 8–12 | 1,600 | General polishing |
| W14 | 7–14 / 8–16 | 1,500 / 1,300 | General polishing |
| W20- | 10–20 | 1,200 | Lapping |
| W20 | 12–22 | 1,000 | Lapping |
| W20+ | 15–25 | 800 | Lapping |
| Coarse micronW28 – W50Lapping and stock removal | |||
| W28 | 20–30 | 700 | Lapping |
| W28+ | 22–36 | 600 | Lapping |
| W40- | 20–40 | 500 | Coarse lapping |
| W40 | 30–40 | 450 | Coarse lapping |
| W40+ | 35–45 | 400 | Coarse lapping |
| W50 | 36–54 | — | Coarse lapping |
All grades are produced and inspected to ANSI B74.20-2003 R2010. Tell us the D50 and the upper cut you need and we grade to that specification. Tighter PSD windows, custom cuts and private-label packing are available on request.
Recommended Applications
Factory Checks Behind This Grade
HNHONGXIANG has produced synthetic diamond powder since 1990 in Henan, China. The factory covers about 124,000 square meters and supplies micron powder, diamond grit, coated diamond and functional diamond materials for global abrasive and precision processing customers.
Batch particle-size inspection
Laser diffraction PSD checked before packing, for stable batch-to-batch performance.
Factory-direct processing
Grading, washing, drying and packing handled in our own plant.
Custom grades available
Grade selection and private-label packaging to your specification.
Export support
Samples, trial orders and bulk shipments with full batch documents.
Packing And Export Options
Standard packing includes sealed bottles, bags or drums according to particle size and order quantity. Inner packaging is moisture-resistant and clearly labeled with product model, grain size, batch number and net weight.
Multiple package options
Sample, kilogram and bulk orders.
Moisture-resistant packing
Sealed bottles, bags or drums.
Clear labeling
Model, grain size, batch no. and net weight.
Export ready
Cartons or drums for air, express or sea.
Bottle package
50 / 100 / 150 / 200 / 300 / 500 / 1000 / 2000 / 3000 / 5000 / 10000 ct
Bag package
100 ct – 10000 ct sealed foil bags, labelled per batch.
Shipping methods
Air, express or sea freight according to order quantity.
Compare Related Grades
Where HDGN Sits In The Monocrystalline Micron Range
HNHONGXIANG monocrystalline micron powder runs from the economy black grade to the high-purity shaped grades. The table below is the full family, so you can see what you are trading between when you move up or down a step.
| Grade | Positioning | Strength / purity | Crystal form | Typical use |
|---|---|---|---|---|
| HDG | Economy black micron powder | Lower strength and purity | Regular crystals, black | Cost-driven polishing and lapping |
| HDY | Standard premium grade | High strength, high purity, low magnetic content | Uniform PSD, blocky crystals | General-purpose lapping and polishing; resin and electroplated tools |
| HDYZ | Re-shaped HDY | HDY base with platelets and slivers removed | Better crystal form, more uniform | Scratch-sensitive polishing and wire saw |
| HDYH | Multi-pass re-shaped HDY | Several shaping passes | Rounder and more regular, no sharp corners | Low-scratch precision polishing |
| HDYM | Sub-micron grade | Below 0.5 µm | Ultra-fine, uniform | Precision and mirror polishing |
| HDYX | Wire-saw grade | High strength, uniform particle size | Regular, free of large platelets | Silicon wafer and sapphire wire saw |
| HDHC | PCD and composite grade | Made from high-strength diamond, high purity | Dense, low defect | Polycrystalline diamond compacts and composites |
| HDH | High-quality raw material grade | High strength, long life, high purity, high impact resistance | Dense, well-formed | Demanding lapping, tooling and composite work |
What To Include
Send the current product, particle size target and process problem. We will confirm the matching grade, sample route and packing option.