321 Piring Ss
321 stainless steel plate is a titanium-stabilized austenitic stainless steel designed for high-temperature and welded applications. Its excellent resistance to intergranular corrosion and strong thermal stability make it ideal for aerospace, Pemrosesan Kimia, and industrial heat systems. Dibandingkan dengan 304 baja tahan karat, 321 provides superior performance in environments involving continuous heating and welding exposure.
- Keterangan
321 stainless steel plate is an austenitic chromium-nickel stainless steel stabilized with titanium. Ini dirancang untuk memberikan ketahanan yang sangat baik terhadap korosi intergranular, especially in high-temperature service environments. Dibandingkan dengan 304 baja tahan karat, 321 offers better stability under heat exposure, making it widely used in aerospace, Pemrosesan Kimia, and thermal equipment.
Komposisi Kimia dari 321 Pelat Baja Tahan Karat
Fitur utama dari 321 stainless steel is the addition of titanium, which stabilizes carbon and prevents chromium carbide precipitation.
| Elemen | Isi (%) |
|---|---|
| Kromium (Kr) | 17.0–19.0 |
| Nikel (Di dalam) | 9.0–12.0 |
| titanium (Dari) | ≥ 5 × C (typically 0.4–0.7) |
| Karbon (C) | ≤ 0.08 |
| mangan (M N) | ≤ 2.00 |
| Silikon (Dan) | ≤ 1.00 |
| Fosfor (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.03 |
| Besi (Fe) | Keseimbangan |
Sifat mekanis dari 321 Baja Tahan Karat
321 stainless steel maintains good strength and ductility across a wide temperature range.
| Milik | Nilai Khas |
|---|---|
| Kekuatan Tarik | 515–750 MPa |
| Kekuatan Hasil | ≥ 205 MPa |
| Pemanjangan | ≥ 40% |
| Kekerasan | ≤ 201 HB |
| Kepadatan | 7.9 gram/cm³ |
Fitur Kinerja Utama
1. Ketahanan Suhu Tinggi Yang Sangat Baik
321 stainless steel performs well in continuous service up to around 800–900°C, making it suitable for heat-exposed environments.
2. Ketahanan Kuat terhadap Korosi Intergranular
The titanium stabilization prevents carbide precipitation during heating, which significantly improves resistance to intergranular corrosion after welding or heat exposure.
3. Kemampuan Las yang Baik
321 stainless steel can be welded using standard austenitic stainless steel methods without the need for post-weld heat treatment in most cases.
4. Good Mechanical Stability
It maintains stable mechanical properties in both low and high temperature environments, with good toughness and fatigue resistance.
Aplikasi Umum dari 321 Pelat Baja Tahan Karat
321 stainless steel plate is widely used in high-temperature and welded structural applications.
Aplikasi yang umum termasuk:
- Sistem pembuangan pesawat
- Komponen mesin jet
- Penukar panas
- Boiler equipment
- Komponen tungku
- Sambungan ekspansi
- Peralatan pemrosesan kimia
- Bejana tekan
- Pipa bersuhu tinggi
- Thermal insulation systems
321 Baja Tahan Karat vs 304 Baja Tahan Karat
| Milik | 321 Baja Tahan Karat | 304 Baja Tahan Karat |
|---|---|---|
| Stabilisator | titanium (Dari) | Tidak ada |
| Tahan Suhu Tinggi | Lebih baik | Sedang |
| Ketahanan Korosi Intergranular | Kuat | Standar |
| Kinerja Pengelasan | Bagus sekali | Bagus |
| Penggunaan Khas | Heat-resistant systems | Penggunaan umum |
