Spherical Tin-Bronze Powder

Classification Type WFQSn 11Q Type WfqSn 8-3Q
Composition ? %Wt. Cu 88~90 87.5~90
Sn 10.0~11.5 (10.8) 7~9 (8)
Zn ---- 2~4 (3)
P 0.2~0.4 (0.3) ----
Inpurity ≤ 0.5 ≤ 0.8
Properties Apparent Density g/cm3 ≥ 4.75 ≥ 4.75
Tap Density g/cm3 ≥ 5.3 ≥ 5.3
Flowability Excellent Excellent
Particle Shape Spherical Spherical
Appearance Pale Bronze Colour Pale Bronze Colour

Note:

WFQSn 11Q is widely used both abroad and domestic. White WFQSn 8-3Q is common used in China only.
Particle size and distribution cuts of bronze powder are shown as follows
No. Particle Size Distribution ( μ ) Reference Mesh No.
1 900~630 20~38
2 630~450 28~40
3 450~280 40~60
4 280~180 60~80
5 180~125 80~120
5A 180~150 80~100
5B 150~120 100~120
6 125~90 120~160
6A 125~106 120~140
6B 106~90 140~160
7 90~63 160~240
7A 90~75 160~180
7B 75~63 180~240
8 63~45 240~320

Note:?
Because of different wire diameter, mesh No. shown in table should be different. This is for reference only, we can offer special available products according to any of our customers' need. Use:
(1) Used to manufacture metallic polymers and mixing anti-friction material.
(2) Used to manufacture sintered Bronze filter and silencer etc.
(3) Used in watch, Meter and photo industries for finishing micro-parts.
(4) Used to manufacture friction material.

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