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Grade CuSn8
European Standard Steel Grade CW453K
Corresponding Standard EN 1654-1998
Copper and copper alloys - Strip for springs and connectors
Classification Copper and Copper Alloys
Density 8.8 g/cm3
CuSn8 Chemical Element Composition Content (%)
Component Fe P Ni Pb Zn Sn Other Total More
Minimum Value - 0.01 - - - 7.5 - Cu:余量
Maximum Value 0.1 0.4 0.2 0.02 0.2 8.5 0.2
"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.
CuSn8 Mechanical Properties
condition Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW 		Bending Strength σw
Mpa
Strip CuSn8- R450 450~550 ≥20ⓐ ；≥23ⓑ
Strip CuSn8-H135 H135 HV: 135~175
Strip CuSn8-Y370 Y370 370~(470) ≥20ⓐ ；≥23ⓑ
Strip CuSn8-R540 R540 540~630 ≥13ⓐ ；≥15ⓑ
Strip CuSn8-H170 H170 HV: 170~200
Strip CuSn8-Y470 Y470 470~(560) ≥13ⓐ ；≥15ⓑ
Strip CuSn8-R600 R600 600~690 ≥5ⓐ ；≥7ⓑ
Strip CuSn8-H190 H190 HV: 190~220
Strip CuSn8-Y540 Y540 540~(630) ≥5ⓐ ；≥7ⓑ
Strip CuSn8-B410 B410 HV: (190)~(220) Bending limit ≥410
Strip CuSn8-R660 R660 660~750 ≥3ⓐ ；≥4ⓑ
Strip CuSn8-H210 H210 HV: 210~240
Strip CuSn8-Y620 Y620 620~(710) ≥3ⓐ ；≥4ⓑ
Strip CuSn8-R740 R740 ≥740
Strip CuSn8-H230 H230 HV: ≥230
Strip CuSn8-Y700 Y700 ≥700
1 Approximate Comparison Table Bronze
China United States International Organization for Standardization Germany European Standard Russia
GB ISC ASTM UNS ISO Numerical Grade DIN EN/DIN W-Nr. EN Numerical Grade GOST
QSn8-0.3 C52100 92Cu-8Sn-.2P C52100 CuSn8 C52100 CuSn8 2.1030
C52100 		CuSn8P CW459K БрОФ8-0.3
2 Approximate Comparison Table Copper and Copper Alloy
United States International Organization for Standardization Germany France European Standard Sweden United Kingdom
UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade SS BS EN/BS
C90700 CuSn10 G-CuSn10 2.1050.01 CuSn8 CuSn10-C CC480K CuSn10 CT1
3 Approximate Comparison Table Copper and Copper Alloy
Japan United States International Organization for Standardization Germany France European Standard Russia United Kingdom
JIS UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST BS EN/BS
C5212 C52100 CuSn8 CuSn8 2.1030 CuSn9P CuSn8 CW453K BrOF7-0.2 PB104
CuSn8 Corresponding Standards(Same grade name, different standards)
1 EN 12163-1998
CuSn8 CW453K
2 EN 12166-1998
CuSn8 CW453K
3 EN 1654-1998
CuSn8 CW453K
4 EN 12166-2016
CuSn8 CW453K
5 DIN 17672-1-1983
CuSn8 2.1030
6 DIN EN 12163-1998
CuSn8 CW453K
7 DIN EN 12163-2016
CuSn8 CW453K
8 DIN 17671-1-1983
CuSn8 2.1030
9 DIN EN 12166-2016
CuSn8 CW453K
10 DIN EN 12166-1998
CuSn8 CW453K
11 ISO 427-1983
CuSn8
12 EN 12163-2016
CuSn8 CW453K
13 DIN 2076-1984
CuSn8
14 EN 12167-2024
CuSn8 CW453K
15 DIN EN 12449-2019
CuSn8 CW453K
16 EN 12449-2023
CuSn8 CW453K

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