Products
![](https://harada-shindo.co.jp/main/wp-content/uploads/2019/09/productstex5-1024x320-1.jpg)
Phosphor Bronze Plates and Strips
*Please contact us if you have any specific requests regarding chemical compositions, mechanical properties, and thicknesses.
![](https://harada-shindo.co.jp/main/wp-content/uploads/2019/09/product1-1.jpg)
Chemical Composition
Alloy No. | Chemical Composition(%) | |||||
---|---|---|---|---|---|---|
Sn | P | Fe | Pb | Zn | Cu+Sn+P | |
C5050 | 1.0~1.7 | ≦ 0.15 | ≦ 0.10 | ≦ 0.02 | ≦ 0.20 | ≧ 99.5 | HRD200 | 1.7~2.3 | ≦ 0.15 |
C5111 | 3.5~4.5 | 0.03~0.35 | ||||
C5102 | 4.5~5.5 | |||||
C5191 | 5.5~7.0 | |||||
C5212 | 7.0~9.0 |
Mechanical Properties
Alloy No. | Temper | Tension Test | Hardness Test | |||
---|---|---|---|---|---|---|
Thickness Category ㎜ |
Tensile Strength N/m㎡ |
Elongation % |
Thickness Category ㎜ |
Vickers Hardness HV*1 |
||
C5050 | O | ≧ 0.10 ≦ 5.0 |
≧ 240 | ≧ 40 | - | - |
1/4H | ≧ 0.10 ≦ 5.0 |
240~330 | ≧ 30 | ≧ 0.15 ≦ 5.0 |
60~120 | |
1/2H | ≧ 0.10 ≦ 5.0 |
330~450 | ≧ 10 | ≧ 0.10 ≦ 5.0 |
90~155 | |
H | ≧ 0.10 ≦ 5.0 |
390~500 | ≧ 3 | ≧ 0.10 ≦ 5.0 |
120~165 | |
EH | ≧ 0.10 ≦ 5.0 |
≧ 460 | - | ≧ 0.05 ≦ 5.0 |
≧ 140 | |
HRD200 | O | ≧ 0.10 ≦ 5.0 |
≧ 300 | ≧ 30 | ≧ 0.10 ≦ 5.0 |
70~115 |
1/2H | ≧ 0.10 ≦ 5.0 |
400~500 | ≧ 10 | ≧ 0.10 ≦ 5.0 |
125~165 | |
H | ≧ 0.10 ≦ 5.0 |
450~550 | ≧ 5 | ≧ 0.10 ≦ 5.0 |
150~185 | |
EH | ≧ 0.10 ≦ 5.0 |
500~600 | ≧ 2 | ≧ 0.10 ≦ 5.0 |
175~205 | |
SH | ≧ 0.10 ≦ 5.0 |
600~700 | - | ≧ 0.10 ≦ 5.0 |
185~215 | |
C5111 | O | ≧ 0.10 ≦ 5.0 |
≧ 295 | ≧ 38 | - | - |
1/4H | ≧ 0.10 ≦ 5.0 |
345~440 | ≧ 25 | ≧ 0.15 ≦ 5.0 |
80~150 | |
1/2H | ≧ 0.10 ≦ 5.0 |
410~510 | ≧ 12 | ≧ 0.10 ≦ 5.0 |
120~180 | |
H | ≧ 0.10 ≦ 5.0 |
490~590 | ≧ 7 | ≧ 0.10 ≦ 5.0 |
150~200 | |
EH | ≧ 0.10 < 0.20 |
570~660 | - | ≧ 0.05 ≦ 5.0 |
170~220 | |
≧ 0.20 ≦ 5.0 |
≧ 3 | |||||
SH | ≧ 0.10 ≦ 5.0 |
≧ 640 | - | ≧ 0.05 ≦ 5.0 |
≧ 200 | |
C5102 | O | ≧ 0.10 ≦ 5.0 |
≧ 305 | ≧ 40 | - | - |
1/4H | ≧ 0.10 ≦ 5.0 |
375~470 | ≧ 28 | ≧ 0.10 ≦ 5.0 |
90~160 | |
1/2H | ≧ 0.10 ≦ 5.0 |
470~570 | ≧ 15 | ≧ 0.10 ≦ 5.0 |
130~190 | |
H | ≧ 0.10 ≦ 5.0 |
570~665 | ≧ 7 | ≧ 0.10 ≦ 5.0 |
170~220 | |
EH | ≧ 0.10 < 0.20 |
620~710 | - | ≧ 0.05 ≦ 5.0 |
190~230 | |
≧ 0.20 ≦ 5.0 |
≧ 4 | |||||
SH | ≧ 0.10 ≦ 5.0 |
≧ 660 | - | ≧ 0.05 ≦ 5.0 |
≧ 200 | |
C5191 | O | ≧ 0.10 ≦ 5.0 |
≧ 315 | ≧ 42 | - | - |
1/4H | ≧ 0.10 ≦ 5.0 |
390~510 | ≧ 35 | ≧ 0.10 ≦ 5.0 |
100~160 | |
1/2H | ≧ 0.10 ≦ 5.0 |
490~610 | ≧ 20 | ≧ 0.10 ≦ 5.0 |
150~205 | |
H | ≧ 0.10 ≦ 5.0 |
590~685 | ≧ 8 | ≧ 0.10 ≦ 5.0 |
180~230 | |
EH | ≧ 0.10 < 0.20 |
635~720 | - | ≧ 0.05 ≦ 5.0 |
200~240 | |
≧ 0.20 ≦ 5.0 |
≧ 5 | |||||
SH | ≧ 0.10 ≦ 5.0 |
≧ 690 | - | ≧ 0.05 ≦ 5.0 |
≧ 210 | |
C5212 | O | ≧ 0.10 ≦ 5.0 |
≧ 345 | ≧ 45 | - | - |
1/4H | ≧ 0.10 ≦ 5.0 |
390~510 | ≧ 40 | ≧ 0.10 ≦ 5.0 |
100~160 | |
1/2H | ≧ 0.10 ≦ 5.0 |
490~610 | ≧ 30 | ≧ 0.10 ≦ 5.0 |
150~205 | |
H | ≧ 0.10 ≦ 5.0 |
590~705 | ≧ 12 | ≧ 0.10 ≦ 5.0 |
180~235 | |
EH | ≧ 0.10 < 0.20 |
≧ 685 | - | ≧ 0.05 ≦ 5.0 |
≧ 210 | |
≧ 0.20 ≦ 5.0 |
≧ 5 |
*1 Minimum test force is 1.961N
Thickness Tolerances
Unit:mm
Thickness | Tolerance (width) | ||
---|---|---|---|
≦ 400 | |||
≧ 0.05 | ≦ 0.08 | ±0.005 | |
> 0.08 | ≦ 0.15 | ±0.008 | |
> 0.15 | ≦ 0.25 | ±0.013 | |
> 0.25 | ≦ 0.4 | ±0.018 | |
> 0.4 | ≦ 0.55 | ±0.020 | |
> 0.55 | ≦ 0.7 | ±0.025 | |
> 0.7 | ≦ 0.9 | ±0.030 | |
> 0.9 | ≦ 1.2 | ±0.035 | |
> 1.2 | ≦ 1.5 | ±0.045 | |
> 1.5 | ≦ 2 | ±0.05 | |
> 2 | ≦ 3 | ±0.06 |
![](https://harada-shindo.co.jp/main/wp-content/uploads/2019/09/productstex5-1024x320-1.jpg)
Phosphor Bronze Plates and Strips for Springs
*Please contact us if you have any specific requests regarding chemical composition, mechanical properties, and thicknesses.
![](https://harada-shindo.co.jp/main/wp-content/uploads/2023/12/product2-2-1.jpg)
Chemical Composition
Alloy No. | Chemical Composition(%) | |||||
---|---|---|---|---|---|---|
Sn | P | Fe | Pb | Zn | Cu+Sn+P | |
C5210 | 7.0~9.0 | 0.03~0.35 | ≦ 0.10 | ≦ 0.02 | ≦ 0.20 | ≧ 99.5 |
C5240 | 9.0~11.00 | 0.03~0.35 | ≦ 0.10 | ≦ 0.02 | ≦ 0.20 | ≧ 99.5 |
Mechanical Properties
Alloy No. | Temper | Tension Test | Elastic Limit Test of Spring | Hardness Test | |||||
---|---|---|---|---|---|---|---|---|---|
Thickness Category mm |
Tensile Strength N/m㎡ |
0.2% Yield Strength N/m㎡ |
Elongation % |
Thickness Category mm |
Elastic Limit of Spring (Kb0.1) N/m㎡ |
Thickness Category mm |
Vickers Hardness HV*1 |
||
C5210 | 1/2H | ≧ 0.10 ≦ 1.6 |
470~610 | ≧ 260 | ≧ 27 | ≧ 0.15 ≦ 1.6 |
≧ 245 | ≧ 0.10 ≦ 1.6 |
140~205 |
H | ≧ 0.10 ≦ 1.6 |
590~705 | ≧ 450 | ≧ 20 | ≧ 0.15 ≦ 1.6 |
≧ 390 | ≧ 0.10 ≦ 1.6 |
185~235 | |
EH | ≧ 0.10 ≦ 1.2 |
685~785 | ≧ 580 | ≧ 11 | ≧ 0.15 ≦ 1.6 |
≧ 460 | ≧ 0.10 ≦ 1.2 |
210~260 | |
SH | ≧ 0.10 ≦ 1.2 |
735~835 | ≧ 640 | ≧ 9 | ≧ 0.15 ≦ 1.6 |
≧ 510 | ≧ 0.10 ≦ 1.2 |
230~270 | |
ESH | ≧ 0.10 ≦ 0.40 |
770~885 | ≧ 690 | ≧ 5 | ≧ 0.15 ≦ 1.6 |
≧ 560 | ≧ 0.10 ≦ 0.4 |
245~285 | |
C5240 | H | ≧ 0.10 ≦ 1.6 |
650~750 | ≧ 510 | ≧ 11 | ≧ 0.15 ≦ 1.6 |
≧ 430 | ≧ 0.10 ≦ 1.6 |
200~240 |
EH | ≧ 0.10 ≦ 0.80 |
750~850 | ≧ 630 | ≧ 9 | ≧ 0.15 ≦ 1.6 |
≧ 510 | ≧ 0.10 ≦ 0.8 |
230~270 | |
SH | ≧ 0.10 ≦ 0.40 |
850~950 | ≧ 750 | ≧ 5 | ≧ 0.15 ≦ 1.6 |
≧ 570 | ≧ 0.10 ≦ 0.40 |
250~300 | |
ESH | ≧ 0.10 ≦ 0.40 |
≧ 950 | ≧ 870 | - | ≧ 0.15 ≦ 1.6 |
≧ 630 | ≧ 0.10 ≦ 0.40 |
≧ 270 | |
XSH | ≧ 0.10 ≦ 0.40 |
≧ 1000 | ≧ 930 | - | ≧ 0.15 ≦ 1.6 |
≧ 700 | ≧ 0.10 ≦ 0.40 |
≧ 290 |
*1 Minimum test force is 1.961N
Thickness Tolerances
Unit:mm
Thickness | Tolerance (width) | |
---|---|---|
≦ 400 | ||
≧ 0.05 | ≦ 0.08 | ±0.005 |
> 0.08 | ≦ 0.15 | ±0.008 |
> 0.15 | ≦ 0.25 | ±0.013 |
> 0.25 | ≦ 0.4 | ±0.018 |
> 0.4 | ≦ 0.55 | ±0.020 |
> 0.55 | ≦ 0.7 | ±0.025 |
> 0.7 | ≦ 0.9 | ±0.030 |
> 0.9 | ≦ 1.2 | ±0.035 |
> 1.2 | ≦ 1.5 | ±0.045 |
> 1.5 | ≦ 2.0 | ±0.050 |
![](https://harada-shindo.co.jp/main/wp-content/uploads/2019/09/productstex5-1024x320-1.jpg)
HQ Phosphor Bronze with High Strength and Bending Workability
As electronic devices and parts become smaller and thinner, the need for high strength and precision in the phosphor bronze as the base material also increases.
To meet these needs, we have established a production system for High Quality phosphor bronze with high bending workability (HQ series) in addition to our existing lineup.
![](https://harada-shindo.co.jp/main/wp-content/uploads/2023/12/product4-2-3-1.jpg)
Physical Properties
Alloy No. |
C5191 | C5210 | C5240 |
---|---|---|---|
Melting Point(Liquidus) |
1040℃ | 1020℃ | 1000℃ |
Melting Point(Solidus) |
900℃ | 880℃ | 845℃ |
Specific Gravity |
8.82 | 8.80 | 8.78 |
Linear Expansion Coefficient |
18.2×10-6 /K |
18.2×10-6 /K |
18.4×10-6 /K |
Thermal Conductivity |
67 W/m・K |
63 W/m・K |
50 W/m・K |
Electrical Conductivity |
14 %IACS |
12 %IACS |
10 %IACS |
Specific Heat |
375 J/Kg・K |
377 J/Kg・K |
375 J/Kg・K |
Modulus of Elasticity(Tension) |
115 kN/m㎡ |
110 kN/m㎡ |
105 kN/m㎡ |
Modulus of Elasticity(Deflection) |
105 kN/m㎡ |
100 kN/m㎡ |
100 kN/m㎡ |
Chemical Composition
Specifications | Sn | P | Pb | Zn | Fe | Cu+Sn+P |
---|---|---|---|---|---|---|
C5191 | 5.5~7.0 |
0.03~0.20 |
0.01max |
0.01max |
0.01max |
99.8min |
C5210 | 7.0~9.0 |
0.03~0.20 |
0.01max |
0.01max |
0.01max |
99.8min |
C5240 | 9.0~11.0 |
0.04~0.20 |
0.01max |
0.01max |
0.01max |
99.8min |
Standard | ― |
0.03~0.35 |
0.02max |
0.20max |
0.10max |
99.5min |
Product Size
Type |
Thickness |
Temper |
||||
---|---|---|---|---|---|---|
H | EH | SH | ESH | XSH | ||
C5191HQ |
0.05~0.30mm | ○ | ○ | ○ | ― | ― |
C5210HQ |
○ | ○ | ○ | ○ | ○ | |
C5240HQ |
○ | ○ | ○ | ○ | ○ |
Mechanical Properties
Alloy No. | Temper | Symbol | Tensile Strength N/m㎡ | 0.2% Yield Strength N/m㎡ | Elongation % | Hardness HV | Elastic Limit of Spring N/m㎡ |
---|---|---|---|---|---|---|---|
C5191 | H | Standard | 590~685 | - | 8min | 180~230 | - |
HQ | 630 | 614 | 22.6 | 203 | - | ||
Harada’s average | 620 | 600 | 17.6 | 202 | - | ||
EH | Standard | 635~720 | - | 5min | 200~240 | - | |
HQ | 699 | 697 | 13.7 | 214 | - | ||
Harada’s average | 690 | 662 | 11.0 | 213 | - | ||
SH | Standard | 690min | - | - | 210min | - | |
HQ | 744 | 739 | 12.7 | 222 | - | ||
Harada’s average | 725 | 710 | 8.3 | 216 | - | ||
C5210 | H | Standard | 590~705 | 450min | 20min | 185~235 | 390min |
HQ | 616 | 569 | 35.3 | 197 | 469 | ||
Harada’s average | 615 | 549 | 28.6 | 193 | 462 | ||
EH | Standard | 685~785 | 580min | 11min | 210~260 | 460min | |
HQ | 721 | 694 | 23.2 | 229 | 563 | ||
Harada’s average | 724 | 684 | 17.0 | 228 | 554 | ||
SH | Standard | 735~835 | 640min | 9min | 230~270 | 510min | |
HQ | 778 | 773 | 13.3 | 242 | 632 | ||
Harada’s average | 771 | 756 | 11.4 | 240 | 627 | ||
ESH | Standard | 770~885 | 690min | 5min | 245~285 | 560min | |
HQ | 845 | 834 | 9.3 | 258 | 648 | ||
Harada’s average | - | - | - | - | - | ||
XSH * |
Standard | 835~1000 | - | 1min | - | 630min | |
HQ | 979 | 968 | 2.1 | 285 | 706 | ||
Harada’s average | - | - | - | - | - | ||
C5240 | H | Standard | 650~750 | 510min | 11min | 200~240 | 430min |
HQ | 693 | 657 | 25.6 | 223 | 558 | ||
EH | Standard | 750~850 | 630min | 9min | 230~270 | 510min | |
HQ | 800 | 783 | 15.3 | 245 | 585 | ||
SH | Standard | 850~950 | 750min | 5min | 250~300 | 570min | |
HQ | 890 | 877 | 9.2 | 267 | 661 | ||
ESH | Standard | 950min | 870min | - | 270min | 630min | |
HQ | 1000 | 988 | 2.4 | 285 | 718 | ||
XSH | Standard | 1000min | 930min | - | 290min | 700min | |
HQ | 1058 | 1044 | 2.0 | 305 | 883 |
*Internal standards are shown because the products are not standardized by JIS H3130(2018)
Thickness Tolerances (Common to both HQ series and Harada’s average)
Unit:mm
Thickness | Our Achievements | Standard |
---|---|---|
≧ 0.05㎜ ,≦ 0.08㎜ | ±0.002㎜ | ±0.005㎜ |
> 0.08㎜ ,≦ 0.15㎜ | ±0.002㎜ | ±0.008㎜ |
> 0.15㎜ ,≦ 0.25㎜ | ±0.003㎜ | ±0.013㎜ |
> 0.25㎜ ,≦ 0.30㎜ | ±0.004㎜ | ±0.018㎜ |