Beryllium Copper Strip (Strip, Plate, Rod and Wire forms)
Widely used to form contact springs, these products are available as strips, plates, rods, or wire. Choose from a variety of alloy grades and hardnesses for specific applications.
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Introduction of Improved Beryllium Copper (less dimensional changes and variations)
Product tags：
Less distortion Beryllium Copper (C1720 age hardenable material)
What is the improved material?
This is a new material developed by NGK through special processes for beryllium copper age hardenable material to reduce distortion during heat treatment and improve fatigue strength.
Enabling improvement of manufacturing yield・Reduction of lead time・Stabilization of product performance
The improved material enables your product to improve manufacturing yield, shorten lead time and stabilize performance because of less distortion during age hardening process.
| Advantage | Benefit |
|---|---|
|
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Please feel free to ask us for trial sample.
*The manufacturing upper limit of the improved material is t0.60mm. (Available up to 0.6mm thick)
Improvement Effect (flat-blade terminal)
Evaluation material
- Conventional material (C1720R-H)
- Improved material
Evaluation method
- Stamp 0.4mm pitch flat-blade as shown in the photo.
- Measure the variation between the pitch before and after heat treatment (315℃ for 2 hours) on the same pin.
Improvement Effect (Bending terminal)
Evaluation material
- Conventional material (C1720R-H)
- Improved material
Evaluation method
- Bend the material as shown in the photo
- Measure the angular variation before and after heat treatment (315℃ for 2 hours) on the same pin.
Improvement of Fatigue Strength
Product specifications
Properties of Improved material compared to Standard material
| Designation4) | Tensile Strength1) (N/mm2) | 0.2%Yield Strength1) (N/mm2) | Elongation1)(%) | Vickers Hardness1)(HV) | Electrical Conductivity2)(%IACS) |
Precipitation-Heat-Treatment (℃×hr) |
|
|---|---|---|---|---|---|---|---|
|
Standard material |
C1720P-O C1720R-O |
410-540 | — | min. 35 | 90-160 | — | — |
|
C1720P-OT C1720R-OT |
1100-13803) | min. 960 | min. 3 | 350-400 | min. 22 | 3hr.at 315℃ | |
|
C1720P-1/4H C1720R-1/4H |
510-620 | — | min. 10 | 145-220 | — | — | |
|
C1720P-1/4HT C1720R-1/4HT |
1180-14003) | min. 1030 | min. 2 | 360-430 | min. 22 | 2.5hr.at 315℃ | |
|
C1720P-1/2H C1720R-1/2H |
590-695 | — | min. 5 | 180-240 | — | — | |
|
C1720P-1/2HT C1720R-1/2HT |
1240-14403) | min. 1100 | min. 2 | 370-440 | min. 22 | 2hr.at 315℃ | |
|
C1720P-H C1720R-H |
685-835 | — | min. 2 | 210-270 | — | — | |
|
C1720P-HT C1720R-HT |
1270-14803) | min. 1140 | min. 1 | 380-450 | min. 22 | 2hr.at 315℃ | |
|
Improved material |
C1720P-OK C1720R-OK |
410-540 | — | min. 35 | 90-160 | — | — |
|
C1720P-OKT C1720R-OKT |
1100-13803) | min. 960 | min. 3 | 350-400 | min. 22 | 3hr.at 315℃ | |
|
C1720P-1/4HK C1720R-1/4HK |
510-620 | — | min. 10 | 145-220 | — | — | |
|
C1720P-1/4HKT C1720R-1/4HKT |
1180-14003) | min. 1030 | min. 2 | 360-430 | min. 22 | 2.5hr.at 315℃ | |
|
C1720P-1/2HK C1720R-1/2HK |
590-695 | — | min. 5 | 180-240 | — | — | |
|
C1720P-1/2HKT C1720R-1/2HKT |
1240-14403) | min. 1100 | min. 2 | 370-440 | min. 22 | 2hr.at 315℃ | |
|
C1720P-HK C1720R-HK |
685-835 | — | min. 2 | 210-270 | — | — | |
|
C1720P-HKT C1720R-HKT |
1270-14803) | min. 1140 | min. 1 | 380-450 | min. 22 | 2hr.at 315℃ |
1) Values are applicable to thickness 0.1mm and over.
2) Electrical conductivity is for design guidance only.
3) The upper limits of tensile strength after age hardening are for design guidance only.
4) P and R in column "Designation" represent "strip cut to length" and "strip in coils".
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