Phosphor Bronze Strip -

Phosphor Bronze Strip

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d90a1c5834d34ab885dd285033bc3e5f

Has especially an wide industrial use as electric contact for the automotive, white goods and brown goods industries. Phosphor Bronze has also a special area of use such as connector contacts, pump components, welding wires and electrotes.

Physical Properties
Alloy	Density (gr/cm³)	Thermal Elongation Factor (10-6 K-1)	Electric Cond. (MS/ m?mm²)	Electric Cond. (% IACS)	Heat Cond. (W/mK)	Flexibility (kN/mm²)	Welding Prop.	Solderin Prop.	Cracking
CuSn6	8.90	18.5	9	15	75	115	Good	Very Good	No
CuSn8	8.90	18.5	7.5	13	62	115	Good	Very Good	No

Mechanical Properties
Alloy	Temper	T/S RM (N/mm²)	Bending Hardness Rp 0.2 (N/mm²)	Elongation A50 mm (%50 min)	Vickers Hardness
CuSn6	R350/H80	350-420	≥300	≥45	80-110
	R420/H125	420-520	≥260	≥17	125-165
	R500/H160	500-590	≥450	≥8	160-190
	R560/H180	560-650	≥500	≥5	180-210
	R640/H200	640-730	≥600	≥3	200-230
	R720/H220	≥720	≥690	–	≥220
CuSn8	R370/H90	370-450	≥300	≥50	90-120
	R450/H135	450-550	≥280	≥20	135-175
	R540/H170	540-630	≥460	≥13	170-200
	R600/H190	600-690	≥530	≥5	190-220
	R660/H210	660-750	≥620	≥3	210-240
	R740/H230	≥740	≥700	≥2	≥230

Chemical Composition
Alloy	Chemical Composition (%)	EN	USA	Standards
CuSn6	Sn 5.5-7.0 P max. 0.35 Cu Rest	CW452K	C51900	DIN 17670-1 BS Alloy Pb 103
CuSn8	Sn 7.5-8.5 P max. 0.35 Cu Rest	CW453K	C52100	DIN17670-1 BS Alloy Pb 104