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Home Material GB /T 21652-2017
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Grade QSn7-0.2
China ISC T51530
Corresponding Standard GB /T 21652-2017
Copper and Copper Alloy Wire
Classification Copper and Copper Alloys
Properties High Hardness High Elasticity Corrosion Resistance
QSn7-0.2 Chemical Element Composition Content (%)
Component Fe P Pb Al Zn Sn Other Total More
Minimum Value - 0.1 - - - 6 - Cu:余量
Maximum Value 0.05 0.25 0.02 0.01 0.3 8 0.45
"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.
QSn7-0.2 Mechanical Properties
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Elongation or Extension Rate
δ
%
0.1~1.0 软(O60) ≥350 A100mm
≥35
＞1.0~8.5 软(O60) ≥350 A100mm
≥45
0.1~1.0 1/4硬(H01) 480~680 /
＞1.0~2.0 1/4硬(H01) 450~650 A100mm
≥10
＞2.0~4.0 1/4硬(H01) 420~620 A100mm
≥15
＞4.0~6.0 1/4硬(H01) 400~600 A100mm
≥20
＞6.0~8.5 1/4硬(H01) 380~580 A100mm
≥22
0.1~1.0 1/2硬(H02) 540~740 /
＞1.0~2.0 1/2硬(H02) 520~720 /
＞2.0~4.0 1/2硬(H02) 500~700 A100mm
≥4
＞4.0~6.0 1/2硬(H02) 480~680 A100mm
≥8
＞6.0~8.5 1/2硬(H02) 460~660 A100mm
≥10
0.1~1.0 3/4硬(H03) 750~950 /
＞1.0~2.0 3/4硬(H03) 730~920 /
＞2.0~4.0 3/4硬(H03) 710~900 /
＞4.0~6.0 3/4硬(H03) 690~880 /
＞6.0~8.5 3/4硬(H03) 640~860 /
0.1~1.0 硬(H04) 880~1130 /
＞1.0~2.0 硬(H04) 860~1060 /
＞2.0~4.0 硬(H04) 830~1030 /
＞4.0~6.0 硬(H04) 780~980 /
＞6.0~8.5 硬(H04) 690~950 /
Approximate Comparison Table Bronze
China United States International Organization for Standardization Germany Russia
GB ISC ASTM UNS ISO Numerical Grade DIN EN/DIN W-Nr. GOST
QSn7-0.2 T51530 93Cu-7Sn-.2P C52000 CuSn7 C52000 CuSn7 C52000 БрОФ7-0.2
QSn7-0.2 Corresponding Standards(Same grade name, different standards)
1 GB /T 5231-2012
QSn7-0.2 T51530
2 GB /T 5231-2022
QSn7-0.2 T51530
3 YS /T 649-2018
QSn7-0.2 T51530
4 GB /T 3114-2023
QSn7-0.2 T51530
5 GB /T 21652-2017
QSn7-0.2 T51530

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