Phosphor bronze

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Product Introduction

1. Chemical composition

Brand (China)	Brand (Japan)	Brand (USA)	Phosphorus P	Bismuth Bi	Antimony Sb	Iron Fe	Lead Pb	Tin Sn	Zinc Zn	Copper Cu	Impurity
QSn4-4-4	C5441	C54400	≤0.03	≤0.02	≤0.002	≤0.05	3.5-4.5	3.0～5.0	3.0-5.0	margin	≤0.2
QSn4-3	C5111	C51000	≤0.03	≤0.02	≤0.002	≤0.05	≤0.02	3.5-4.5	2.7-3.3	margin	≤0.2
QSn6.5-0.1	C5191	C51900	0.10-0.25	≤0.002	≤0.002	≤0.05	≤0.02	6.0-7.0	-	margin	≤0.1
QSn7-0.2	C5212	C52100	0.10-0.25	≤0.002	≤0.002	≤0.05	≤0.02	6.0-8.0	-	margin	≤0.1

2. Physical and chemical properties

Brand (China)	Brand (Japan)	Brand (USA)	Tensile strength σ b (MPa)	Conductivity (%)	hardness	Product Features
QSn4-4-4	C5441	C54400	＞300	＞20	65-85	Excellent cutting and drilling performance, good conductivity, and excellent anti friction performance.
QSn4-3	C5111	C51000	≥410		-	Excellent corrosion resistance, wear resistance, excellent elasticity, and weldability.
QSn6.5-0.1	C5191	C51900	≥470
QSn7-0.2	C5212	C52100	≥450

C54400 is a tin phosphorus bronze with added zinc and lead alloy elements, which has good corrosion resistance in atmosphere and fresh water. It can only be pressure processed in a cold state, and is prone to thermal brittleness during lead hot processing. C54400 has high strength, good anti sliding friction, high wear reduction, and good machinability, making it easy to weld and brazing.

Phosphor bronze

Product Introduction

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