2021 Latest Design Double Matt Copper Foil - Bronze Strip – CIVEN

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Our goal is to provide high quality products at competitive prices, and top-notch service to customers around the world. We are ISO9001, CE, and GS certified and strictly adhere to their quality specifications for Foil Copper, Copper Foil, Flexible Copper Strip, We sincerely welcome you come to visit us. Hope we have good cooperation in the future.

2021 Latest Design Double Matt Copper Foil - Bronze Strip – CIVEN Detail:

Product Introduction

Bronze strip is copper with tin, aluminum, and trace elements as raw materials, through processing by ingots, hot rolled, cold rolled, heat treatment, surface cleaning, cutting, finishing and packing, materials with high yield strength, fatigue strength, elastic properties and excellent bending formability. It has been widely used in computer CPU socket, car terminals, mobile phone keypad, electrical and other high-tech electronics connectors.

Main Technical Parameters

3-1 Chemical Composition

Name	Alloy No.	Chemical Composition( %，Max.)
Name	Alloy No.	Sn	Al	Zn	Ni	Fe	Pb	P	Cu	Impurity
Tin Bronze	QSn4-0.3	3.5-4.9	—	0.30	0.2	0.10	0.05	0.03-0.35	Rem	0.2
	QSn4-3	3.5-4.5	0.002	2.7-3.3	0.2	0.05	0.02	0.03-0.35	Rem	0.2
	QSn6.5-0.1	6.0-7.0	0.002	0.3	0.2	0.02	0.02	0.1-0.25	Rem	0.1
	QSn8-0.3	7.0-9.0	——	0.2	0.2	0.10	0.05	0.03-0.35	Rem	0.1
Aluminum Bronze	QAl5	0.1	4.0-6.0	0.5	0.5	0.5	0.03	0.01	Rem	1.6
	QAl7	—–	6.0-8.5	0.2	0.5	0.5	0.02	——	Rem	——
	QAl9-2	0.1	8.0-10.0	1.0	0.5	0.5	0.03	0.01	Rem	1.7

Name	Alloy No.	Chemical Composition( %，Max.)
Name	Alloy No.	Be	Al	Si	Ni	Fe	Pb	Ti	Co	Cu	Imputrity
Beryllium Bronze	QBe2	1.8-2.1	0.15	0.15	0.2-0.4	0.15	0.005	—	—	Rem	0.5
	QBe1.9	1.85-2.1	0.15	0.15	0.2-0.4	0.15	0.005	0.10-0.25	—	Rem	0.5
	QBe1.7	1.6-1.85	0.15	0.15	0.2-0.4	0.15	0.005	0.10-0.25	—	Rem	0.5
	QBe0.6-2.5	0.4-0.7	0.20	0.20	——	0.10	—	—	2.4-2.7	Rem	—
	QBe0.4-1.8	0.2-0.6	0.20	0.20	1.4-2.2	0.10	—	—	0.30	Rem	—
	QBe0.3-1.5	0.25-0.5	0.20	0.20	——	0.10	—	—	1.4-1.7	Rem	—

3-2 Alloy Table

Name	China	ISO	ASTM	JIS
Tin Bronze	QSn4-0.3	CuSn4	C51100	C5101
	QSn4-3	CuSn4Zn2	—	—
	QSn6.5-0.1	CuSn6	C51900	C5191
	QSn8-0.3	CuSn8	C52100	C5210
Aluminum Bronze	QAl5	CuAl5	C60600	——
	QAl7	CuAl7	C61000	——
	QAl9-2	CuAl9Mn2	——	——
Beryllium Bronze	QBe2	CuBe2	C17200	C1720
	QBe1.9	——	——	——
	QBe1.7	CuBe1.7	C17000	C1700
	QBe0.6-2.5	——	C17500	C1750
	QBe0.4-1.8	——	C17510	C1751
	QBe0.3-1.5	——	C17600	C1760

Main Technical Parameters

3-3-1Specification Unit: mm

Name	Alloy No.(China)	Temper	Size(mm)
			Thickness	Width
Tin Bronze Strip	QSn4-3 QSn4-0.3 QSn6.5-0.1QSn8-0.3	O 1/2H H EH	＞0.12～2.0	≤600
		O H EH
Aluminum Bronze Strip	QA15 QA17 QA19-2	O H	＞0.2～1.2	80～300
		1/2H H
		O H EH	＞0.2～1.2	80～300
Beryllium Bronze Strip	QBe2 QBe1.9 QBe1.7 QBe0.6-2.5 QBe0.4-1.8 QBe0.3-1.5	O	0.05-1.5	10～340
		H

Temper Mark:O. Soft;1/4H. 1/4 Hard;1/2H. 1/2 Hard;H. Hard;EH. Ultrahard.

3-3-2 Tolerance Unit: mm

Thickness	Width
	Thickness Allow Deviation±		Width Allow Deviation ±
	<300	<600	<400	<600
0.05～0.1	0.005	—–	0.2	—–
0.1～0.3	0.008	0.015	0.3	0.4
0.3～0.5	0.015	0.020	0.3	0.5
0.5～0.8	0.020	0.030	0.3	0.5
0.8～1.2	0.030	0.040	0.4	0.6

3-3-3 Mechanical Performance:

Temper		Tensile Strength N/mm2	Elongation ≥%	Hardness HV
M	(O)	≥295	40	——
Y4	(1/4H)	390-510	35	100-160
Y2	(1/2H)	440-570	10	160-205
Y	(H)	540-690	8	180-230
T	(EH)	≥640	5	≥200

Temper Mark:O. Soft;1/4H. 1/4 Hard;1/2H. 1/2 Hard;H. Hard;EH. Ultrahard.

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To consistently enhance the management method by virtue of the rule of "sincerely, fantastic religion and top quality are the base of business development", we extensively absorb the essence of associated goods internationally, and constantly acquire new merchandise to satisfy the needs of shoppers for 2021 Latest Design Double Matt Copper Foil - Bronze Strip – CIVEN , The product will supply to all over the world, such as: Cannes, Dubai, Tunisia, Our company's main products are widely used all over the world; 80% of our products exported to the United States, Japan, Europe and other markets. All stuff sincerely welcome guests come to visit our factory.

C220 Commercial Bronze