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dawai rintangan elektrik cr20ni30 untuk gegelung pemanasan spring dapur elektrik
dawai rintangan elektrik pemanasan cr20ni30 untuk dapur elektrik
Sifat Utama dawai rintangan pemanasan
| Jenis | Cr20Ni80 | Cr15Ni60 | Cr30Ni70 | Cr20Ni35 | Cr20Ni30 | |
| Komposisi kimia utama | Ni | Rehat | 55.0~61.0 | Rehat | 34.0~37.0 | 30.0~34.0 |
| Cr | 20.0~23.0 | 15.0~18.0 | 28.0~31.0 | 18.0~21.0 | 18.0~21.0 | |
| Fe | ≤1 | Rehat | ≤1 | Rehat | Rehat | |
| Suhu Maksimum (℃) | 1200 | 1150 | 1250 | 1100 | 1100 | |
| Pekali pembetulan suhu rintangan. (CT) | 1.09±0.05 | 1.11±0.05 | 1.18±0.05 | 1.04±0.05 | 1.06±0.05 | |
| Takat lebur (℃) | 1400 | 1390 | 1380 | 1390 | 1390 | |
| Kerintangan ρ20℃ (10-6Ω.m) | 800℃ | 1.008 | 1.078 | 1.028 | 1.188 | 1.173 |
| 1000℃ | 1.014 | 1.095 | 1.033 | 1.219 | 1.201 | |
| 1200℃ | 1.025 | 1.043 | ||||
| Nilai hayat yang pantas | Suhu (℃) | 1175 | 1100 | 1200 | 1050 | 1050 |
| jam (j) | ≥110 | ≥100 | ≥110 | ≥100 | ≥100 | |
| Graviti tentu (g/cm3) | 8.4 | 8.2 | 8.1 | 7.9 | 7.9 | |
| Pemanjangan (%) | ≥25 | ≥25 | ≥20 | ≥20 | ≥20 | |
| Terma (kj/mh℃) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
| Haba tentu (20℃)j/g.℃ | 0.44 | 0.494 | 0.461 | 0.5 | 0.5 | |
| Panjangkan kekuatan (20 ~ 1000 ℃) α * 10-6 ℃ | 18 | 17 | 17.1 | 19 | 19 | |
| Kekuatan tegangan (kg/mm2) | >85 | >85 | >85 | >85 | >85 | |
| Membengkok berulang kali (F/R) | >12 | >12 | >12 | >12 | >12 | |
| Mikrostruktur | Austenitik | Austenitik | Austenitik | Austenitik | Austenitik | |
| Diameter (mm) | Toleransi (mm) | Diameter (mm) | Toleransi (mm) |
| 0.03-0.05 | ±0.005 | >0.50-1.00 | ±0.02 |
| >0.05-0.10 | ±0.006 | >1.00-3.00 | ±0.03 |
| >0.10-0.20 | ±0.008 | >3.00-6.00 | ±0.04 |
| >0.20-0.30 | ±0.010 | >6.00-8.00 | ±0.05 |
| >0.30-0.50 | ±0.015 | >8.00-12.0 | ±0.4 |
| Ketebalan (mm) | Toleransi (mm) | Lebar (mm) | Toleransi (mm) |
| 0.05-0.10 | ±0.010 | 5.00-10.0 | ±0.2 |
| >0.10-0.20 | ±0.015 | >10.0-20.0 | ±0.2 |
| >0.20-0.50 | ±0.020 | >20.0-30.0 | ±0.2 |
| >0.50-1.00 | ±0.030 | >30.0-50.0 | ±0.3 |
| >1.00-1.80 | ±0.040 | >50.0-90.0 | ±0.3 |
| >1.80-2.50 | ±0.050 | >90.0-120.0 | ±0.5 |
| >2.50-3.50 | ±0.060 | >120.0-250.0 | ±0.6 |
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