GB/T 39153-2020 in English
VALIDMetastable decomposition strengthened Cu-Ni-Sn alloy rod
- Issued on:2020-10-11
- Implemented on:2021-09-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
| Standard No: | GB/T 39153-2020 |
| Document status: | VALID |
| Title in English: | Metastable decomposition strengthened Cu-Ni-Sn alloy rod |
| Title in Chinese: | 亚稳分解强化铜-镍-锡合金棒材 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2020-10-11 |
| Implemented on: | 2021-09-01 |
| ICS Classification: | 77.150.30-Copper products |
| Chinese Classification: | H62-Heavy metals and their alloys |
| Professional Classification: | GB-National Standard |
| Related Keywords: | cu-ni-sn alloy rod introduction analysis
bsn15-8 alloy conventional beryllium copper alloy electrical conductivity bsn15-8 alloy requirements test methods chemical composition ni+co metastable decomposition |
| Related Topics: | break down
Tin alloy Asia Nickel decomposition Super Nickel Titanium Copper Tin-tin alloy material+ nickel tin alloy Organic nickel decomposition method Alloy bar GBT39153 GB/T 39153-2020 Copper alloy rod material Rod |
《GB/T 39153-2020亚稳分解强化铜-镍-锡合金棒材》由TC243（全国有色金属标准化技术委员会）归口，TC243SC2（全国有色金属标准化技术委员会重金属分会）执行，主管部门为中国有色金属工业协会。
Introduction
Analysis of the core content of the standard
| Technical elements | BSn15-8 alloy requirements | Test methods |
|---|---|---|
| Chemical composition | Ni+Co 14.5-15.5%, Sn 7.5-8.5% | GB/T5121 series |
| Mechanical properties | Tensile strength ≥1100MPa, HRC ≥32 | GB/T34505-2017 |
| Dimensional deviation | Φ10-20mm tolerance ±0.04mm | GB/T26303.2 |
In-depth analysis of material properties
The metastable decomposition strengthening mechanism enables BSn15-8 alloy to obtain a unique performance combination:
- Elastic modulus 130GPa, which is better than conventional beryllium copper alloy
- Electrical conductivity 7.5-8%IACS, meeting the needs of electronic components
- Stress relaxation resistance is 40% higher than QSn6.5-0.1
Application implementation suggestions
Typical application scenarios
A certain aerospace sensor company adopted TX00 state Elastic sensitive element made of rod material, tested:
- Working temperature range -50℃~150℃
- Fatigue life up to 10^7 cycles
- Signal linearity error <0.1%FS
Technology Evolution Comparison
| Performance Index | BSn15-8 | QSn6.5-0.1 | BeA-2 |
|---|---|---|---|
| Elastic limit (MPa) | 775 | 450 | 900 |
| Electrical conductivity (%IACS) | 7.5-8 | 13 | 22-28 |
| Processing safety | Non-toxic | Safety | Need to prevent beryllium poisoning |
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