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Grade QSi3-1
Corresponding Standard GB /T 21652-2008
Copper and Copper Alloy Wire
Classification Copper and Copper Alloys
QSi3-1 Chemical Element Composition Content (%)
Component Fe Si Mn Ni Pb Zn Sn Other Total More
Minimum Value - 2.7 1 - - - - - Cu:余量
Maximum Value 0.3 3.5 1.5 0.2 0.03 0.5 0.25 1.1
"Other individual elements or other totals": The chemical composition includes elements not specified in the table. Analysis should only be conducted if these elements are suspected to be present, or if routine analysis suggests that their content may exceed the prescribed limits.
QSi3-1 Mechanical Properties
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Elongation or Extension Rate
δ
%
0.1~1.0 软(M) ≥350 A100mm
≥35
＞1.0~8.5 软(M) ≥350 A100mm
≥45
0.1~1.0 1/4硬(Y4) 480~680 /
＞1.0~2.0 1/4硬(Y4) 450~650 A100mm
≥10
＞2.0~4.0 1/4硬(Y4) 420~620 A100mm
≥15
＞4.0~6.0 1/4硬(Y4) 400~600 A100mm
≥20
＞6.0~8.5 1/4硬(Y4) 380~580 A100mm
≥22
0.1~1.0 1/2硬(Y2) 540~740 /
＞1.0~2.0 1/2硬(Y2) 520~720 /
＞2.0~4.0 1/2硬(Y2) 500~700 A100mm
≥4
＞4.0~6.0 1/2硬(Y2) 480~680 A100mm
≥8
＞6.0~8.5 1/2硬(Y2) 460~660 A100mm
≥10
0.1~1.0 3/4硬(Y1) 750~950 /
＞1.0~2.0 3/4硬(Y1) 730~920 /
＞2.0~4.0 3/4硬(Y1) 710~900 /
＞4.0~6.0 3/4硬(Y1) 690~880 /
＞6.0~8.5 3/4硬(Y1) 640~860 /
0.1~1.0 硬(Y) 880~1130 /
＞1.0~2.0 硬(Y) 860~1060 /
＞2.0~4.0 硬(Y) 830~1030 /
＞4.0~6.0 硬(Y) 780~980 /
＞6.0~8.5 硬(Y) 690~950 /
Approximate Comparison Table Bronze
China United States International Organization for Standardization European Standard Russia United Kingdom
GB ISC ASTM UNS ISO Numerical Grade EN Numerical Grade GOST Commercial Grade BS EN/BS
QSi3-1 T64730 96Cu-3Si-1Mn C65500 CuSi3Mn1 C65500 CuSi3Mn1 CW116C БрКМц3-1 CS101 C65500
QSi3-1 Corresponding Standards(Same grade name, different standards)
1 GB /T 5231-2012
QSi3-1 T64730
2 GB /T 5231-2022
QSi3-1 T64730
3 GB /T 5231-2001
QSi3-1 3-1硅青铜
4 YS /T 649-2018
QSi3-1 T64730
5 GB /T 3114-1994
QSi3-1 T64730
6 GB /T 3114-2023
QSi3-1 T64730
7 GB /T 21652-2017
QSi3-1 T64730
8 GB /T 21652-2008
QSi3-1

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