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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Spherical Tin-Bronze Powder