HDYMC Nano Diamond Micron Powder (Custom Ash)
HDYMC Series / Grain size Custom (ash content per customer requirement) / Monocrystalline
HDYMC Nano Diamond Micron Powder (Custom Ash)
HDYMC Nano Diamond Micron Powder (Custom Ash) is a monocrystalline grade from the HDYMC series, produced factory-direct at our own base in Zhengzhou, Henan - the Diamond Capital of China. Standard grain size range: Custom (ash content per customer requirement). Each batch is checked for particle size distribution before packing, and can be supplied in trial quantities for process validation.
Advantage
- Sub-micron monocrystalline grade with a customer-specified ash content
- Ash and particle size set together, not independently
- Built for slurry and paste formulations with a fixed residue limit
- Settling classification verified by laser diffraction
- Purity above 99.9 percent
- 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
HDYMC Nano Diamond Micron Powder is the sub-micron monocrystalline grade supplied with the ash content set to the customer’s specification rather than to a single house standard.
Below 0.5 µm the non-diamond residue becomes a meaningful share of what is in the bottle. For a slurry or a paste, the residue limit is usually fixed by the customer’s own formulation, and a grade that meets the particle size specification but not the ash limit is still off-spec for that process. HDYMC exists so both are set together.
Send us the particle size band and the ash limit you are working to and we will confirm the grade before production.
Standard Grain Size Chart
Sub-micron diamond powder is the finest end of the same settling ladder, and it is where almost all of the surface-quality risk sits: a single oversized particle sets the scratch depth of the whole batch. Every sub-micron lot is classified by settling rather than only screened, and the distribution is verified by laser diffraction before release.
| GradeChinese standard | Size range (µm)International standard | MeshSieve no. | Typical use |
|---|---|---|---|
| Nano sub-micronW0.1 – W0.5Final mirror polishing; the standard HDYM / HDYMC ladder | |||
| W0.1 | 0–0.1 | 150,000 | Final mirror polishing, nano slurry |
| W0.25 | 0–0.25 | 60,000 | Mirror finish, super-finishing |
| W0.5 | 0–0.5 | 30,000 | Mirror finish, super-finishing |
The standard nano grade runs W0.1 to W0.5. Cuts coarser than W0.5 are supplied from the HDY / HDH monocrystalline ladders, which are graded on the same W scale up to W50. D50, D90 and the upper cut are reported on the batch certificate.
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.
Where HDYMC Sits In The Fine And Nano Range
Below 0.5 µm the specification that decides the result is no longer the average particle size but the top cut and the residue. This table shows the fine and nano grades we produce.
| Grade | Type | Size range | Key property | Typical use |
|---|---|---|---|---|
| HDYM | Monocrystalline, sub-micron | Below 0.5 µm | Uniform PSD, sharp edges | Precision polishing of ceramics, sapphire, carbide and metals |
| HDYMCThis grade | Monocrystalline, sub-micron | Custom, sub-0.5 µm | Ash content set to your specification | Slurry and paste formulations with a fixed residue limit |
| HDN | Nano monocrystalline | Nano range | Monocrystalline nano particles | Ultra-fine finishing and polishing slurries |
| HDPN | Nano polycrystalline | 5 — 500 nm | Detonation synthesis, high specific surface area | Diamond coating, nano polishing, composites, thermal management |
What To Include
Send the current product, particle size target and process problem. We will confirm the matching grade, sample route and packing option.