Standard Chemical Composition JIS EN ASTM AFNOR Cu + Sn + P Fe Pb Zn Sn P C5191 CuSn6 C51900 CuSn6P > 99.5 < 0.10 < 0.02 < 0.20 5.5 - 7.0 0.03 - 0.35 C5210 CuSn8 C52100 CuSn9P > 99,7 < 0.10 < 0.02 < 0.20 7.0 - 9.0 0.03 - 0.35
Alloy Temper Tensile Strength (Mpa) Elongation (%) Vickers Hardness (HV) C5191 O ≥315 ≥42 / 1/4H 390-510 ≥35 100-160 1/2H 490-610 ≥20 150-205 H 590-685 ≥8 180-230 EH 635-720 ≥5 200-240 SH ≥690 / ≥210 C5210 1/2H 470-610 ≥27 140-205 H 590-705 ≥20 185-235 EH 685-785 ≥11 210-260 SH 735-835 ≥9 230-270 SEH 770-885 ≥5 245-285 
Thickness x Width Thickness x Width Thickness x Width Thickness x Width Thickness x Width 0.02mm x 100mm 0.03mm x 100mm 0.05mm x 200mm 0.06mm x 200mm 0.08mm x 300mm
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Compare Features and Typical Applications
1)Alloy Designation,Chemical Composition
Alloy Designation Chemical Composition GB UNS EN JIS Cu +Ag% Sn % P % QSn6.5-0.1 C51900 CuSn6 C5191 Rem. 6.0-7.0 0.10-0.25
2)Physical properties,fabrication properties
Physical properties fabrication properties Desity g/cm³ Electrical conductivity
%IACSThermal conductivity
W(m.K)Modulus of elasticity
GPaSpecific heat J/(g.K) Cold -
workabilityHot -
workabilityMachinability Electric plating property Hot dip tin plating property Weldability 8.83 13 67 112 0.377 18 Excellent Limited Less suitable Excellent Excellent Good
3)Mchine properties
Mchine properties
Temper Hardness High precision bronze strip Microcrystalline products Tensilent strength Elongation Thickness Bend angle Bend radius Tensilent strength Elongation Thickness Bend angle Bend radius 060 ≤120 ≥315 ≥40 <1.6 180°or W Thickness*0.5 - - - 180° or W Thickness*0.5 H01 110-155 390-510 ≥35 Thickness*1 - - - Thickness*1 H02 150-190 490-610 ≥10 Thickness*1.5 - - - Thickness*1.5 H04 180-230 590-690 ≥8 Thickness*2 560-650 ≥10 0.1-0.5 Thickness*2 H06 200-240 635-720 ≥5 - - - ≥610 ≥5 0.1-0.5 - -
Chemical Composition:
Sn: 5.50-7.00%
P: 0.03-0.35%
Zn: 0.30% Max.
Fe: 0.10% Max.
Pb: 0.05% Max.
Zn: BalanceNote: Copper plus additions equal 99.50% minimum.
Typical Physical Properties:
Specific Gravity: 8.80 g/cm3
Coefficient of Thermal Expansion per °C: 18.50 x 10-6 (20-300°C)
Electrical Conductivity (% IACS): 15.50 % @ 68 F
Thermal Conductivity: 38.00 Btu · ft/(hr · ft2·oF)at 68F
Modulus of Elasticity in tension: 16000 ksi
International Specification:
Rods/Bars/Strips: UNS.C51900, CDA519, ASTM B139, B103, B888, B159
European Standards: CuSn6, JIS C5191, CW 452 K, PB 103
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