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Kawat Nikel Krom Ni70Cr30
Kawat nikel kromNi70Cr30
Cr30Ni70 Nichrome Alloy Eletrothermal Coil Strip, Sable Resistance Kanggo Elemen Pemanas,
NiCr70/30
Nikel kromium alloy karo wesi resistance electrothermal resistivity dhuwur, lumahing awak seksual sumur. Ing suhu dhuwur lan intensitas dhuwur,
lan kinerja apik lan Processing bisa welding alam digunakake digunakake Metallurgical, electrical, komponen mechanical lan electrical
industri manufaktur kanggo nindakake materi tahan panas.
Tipe NiCr: Cr20Ni80, Cr15Ni60, Cr20Ni35, Cr20Ni30, Cr25Ni20 etc.Series sabuk datar listrik, kabel geni listrik.
3. Ukuran produk:
Ketebalan: 0.02-4.0mm
Jembar: 2.5--250mm
Standar: GB1234-95
Lumahing padhang lan Gamelan
Ni70Cr30
Kandungan Kimia,%
| C | P | S | Mn | Si | Cr | Ni | Al | Fe | Liyane |
| Maks | |||||||||
| 0.08 | 0.02 | 0.015 | 0.60 | 0.75~1.60 | 28.0~31.0 | Bal. | Maks 0,50 | Max 1.0 | - |
Sifat Mekanik
| Suhu Layanan Terus-terusan Maks: Resisivity (20ºC)/Ω·m::Kapadhetan: Konduktivitas termal: Koefisien Ekspansi Termal: Titik lebur: Elongation: Struktur Mikrografik: Sifat Magnetik: | 1250ºC 1.18 +/-0.05 (Diameter: <0.5mm) 1,20+/-0,05 (Diameter: ≥0,50 mm) 8,1 g/cm3 45,2 KJ/m·h·ºC 17×10-6/ºC (20ºC~1000ºC) 1380ºC Min 20% Austenit nonmagnetik |
| Jinis | Cr20Ni80 | Cr15Ni60 | Cr30Ni70 | Cr20Ni35 | Cr20Ni30 | |
| Komposisi kimia utama | Ni | Ngaso | 55.0~61.0 | Ngaso | 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 | Ngaso | ≤1 | Ngaso | Ngaso | |
| Suhu maksimal (ºC) | 1200 | 1150 | 1250 | 1100 | 1100 | |
| Koefisien koreksi Suhu Resistance.(CT) | 1.09±0.05 | 1.11±0.05 | 1.18±0.05 | 1.04±0.05 | 1.06±0.05 | |
| Titik lebur (ºC) | 1400 | 1390 | 1380 | 1390 | 1390 | |
| Resistivitasρ20ºC(10-6Ω.m) | 800ºC | 1.008 | 1.078 | 1.028 | 1.188 | 1.173 |
| 1000ºC | 1.014 | 1.095 | 1.033 | 1.219 | 1.201 | |
| 1200ºC | 1.025 | 1.043 | ||||
| Nilai urip cepet | Tem.(ºC) | 1175 | 1100 | 1200 | 1050 | 1050 |
| jam (h) | ≥110 | ≥100 | ≥110 | ≥100 | ≥100 | |
| Gravitasi spesifik (g/cm3) | 8.40 | 8.2 | 8.1 | 7.90 | 7.90 | |
| Elongasi (%) | ≥25 | ≥25 | ≥20 | ≥20 | ≥20 | |
| Thermal (kj/mhºC) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
| Panas spesifik (20ºC)j/g.ºC | 0.440 | 0.494 | 0.461 | 0.500 | 0.500 | |
| Extend strength(20~1000ºC)α*10-6ºC | 18.0 | 17.0 | 17.1 | 19.0 | 19.0 | |
| Kekuwatan tarik (kg/mm2) | > 85 | > 85 | > 85 | > 85 | > 85 | |
| Bending (F/R) | > 12 | > 12 | > 12 | > 12 | > 12 | |
| Struktur mikro | Austenitik | Austenitik | Austenitik | Austenitik | Austenitik | |
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