Questions & Answers
Powders are made from the following powdered copper alloys: BrOF8-0.3, BrOF6.5-0.15, BrOF7-0.2, BrKMts10-2, BrKMts3-1, BrA5, BrAZhMts10-3-1.5, BrAZhN10-4-4, BrAZh9-4, BrOTsS3-12-5, BrOTsS4-4-17, BrOTsS5-5-5, BrOF8-0.3, BrOF10-1, BrOF7-0.2, BrOF6.5-0.15.
International Standards:
ISO 3252 - Powder Metallurgy Terminology;
ISO 4497 - Sieve Analysis of Metal Powders;
ISO 4490 - Determination of Powder Flowability;
ISO 3923-1 - Determination of Bulk Density of Powders.
GOST Standards:
GOST 25280-82 - Methods for Sampling Metal Powders;
GOST 18898-89 - Methods for Determining the Flowability of Metal Powders;
GOST 19440-94 - Methods for Determining the Bulk Density of Metal Powders;
GOST 20899-98 - Metal Powder Terms;
GOST 5752-75 - Atomized Bronze Powders;
GOST 4960-75 - Bronze Powder for Metallurgy;
GOST 9722-97 - methods for determining granulometric composition.
Bulk density of bronze powder
| Type of bronze powder | Bulk density, g/cm³ | Weight of 1 liter, kg |
| Fine powder | 2,0–2,8 | 2,0–2,8 |
| Middle faction | 2,8–3,8 | 2,8–3,8 |
| Major faction | 3,8–4,8 | 3,8–4,8 |
| Spherical powder | 4,0–5,5 | 4,0–5,5 |
| Compacted powder | 5,5–6,5 | 5,5–6,5 |
Weight of bronze powder by volume
| Volume | Average weight |
| 1 l | 3–5 kg |
| 5 l | 15–25 kg |
| 10 l | 30–50 kg |
| 20 l | 60–100 kg |
| 50 l | 150–250 kg |