UDIMAR® Alloy 300 (UNS K93120) Product Introduction
UDIMAR® alloy 300, designated as UNS K93120, is a high-strength nickel-based superalloy known for its exceptional mechanical properties and corrosion resistance. This article provides a comprehensive introduction to UDIMAR® alloy 300, covering its chemical composition, mechanical properties, performance at different temperatures, industry applications, shapes and sizes, production standards, welding and processing capabilities, advantages and disadvantages, and a comparison with similar alloys.
Komposisi Kimia
UDIMAR® alloy 300 is primarily composed of nickel with significant additions of cobalt, chromium, molybdenum, and other elements to enhance its mechanical and thermal properties:
| Elemen | Komposisi (%) |
|---|---|
| Nikel (Ni) | 50.0 – 60.0 |
| Kobalt (Co) | 18.0 – 22.0 |
| Kromium (Cr) | 12.0 – 15.0 |
| Molibdenum (Mo) | 2.0 – 3.0 |
| Besi (Fe) | 5.0 – 8.0 |
| Titanium (Ti) | 1.0 – 2.0 |
| Aluminium (Al) | 0,1 – 0,5 |
| Karbon (C) | 00,05 maks |
Sifat Mekanik
UDIMAR® alloy 300 exhibits excellent mechanical properties suitable for high-strength applications:
| Milik | Nilai |
|---|---|
| Kekuatan Tarik, ksi (MPa) | 170 – 200 (1172 – 1379) |
| Kekuatan Hasil (offset 0,2%), ksi (MPa) | 140 – 170 (965 – 1172) |
| Perpanjangan (% dalam 2 inci) | 15 – 25 |
| Kekerasan, Rockwell C (HRC) | 35 – 45 |
Karakteristik Kinerja
UDIMAR® alloy 300 offers several performance advantages:
- High-Strength: Provides excellent strength properties suitable for applications requiring high mechanical performance.
- Ketahanan Korosi: Exhibits good resistance to corrosion and oxidation in various environments, including high-temperature applications.
- Heat Resistance: Maintains mechanical properties at elevated temperatures up to 800°C (1472°F), making it suitable for aerospace and industrial gas turbine applications.
Aplikasi Industri
UDIMAR® alloy 300 is used in various industries where high-strength and corrosion resistance are critical:
| Sektor Industri | Aplikasi |
|---|---|
| Luar angkasa | Turbine blades, discs, shafts, and casings for aerospace engines. |
| Pembangkit Listrik | Gas turbine components, including rotor blades, combustion chambers, and heat exchangers. |
| Pengolahan Kimia | Reactor vessels, valves, and pipes handling corrosive chemicals at high temperatures. |
Bentuk dan Ukuran
UDIMAR® alloy 300 is available in various forms and sizes to meet specific application requirements:
- Formulir: Lembaran, pelat, batangan, tempa, dan kawat.
- Ukuran: Ketebalan berkisar antara 0,5 mm hingga 100 mm untuk pelat, dan diameter berkisar antara 1 mm hingga 300 mm untuk batang bundar.
Standar Produksi
UDIMAR® alloy 300 conforms to international production standards ensuring quality and reliability:
| Formulir Produk | Bentuk Tersedia | Ukuran Tersedia | Standar Produksi |
|---|---|---|---|
| Piring/Lembar | Seprai, Piring | Ketebalan: 0,5 mm – 100 mm | ASTM B637, AMS5764 |
| Batangan/Batang | Batang bulat, Batang persegi | Diameter: 1mm – 300mm | ASTM B637, AMS5764 |
| Penempaan | Balok, Cakram, Cincin | Ukuran: Disesuaikan | ASTM B637, AMS5764 |
Pengelasan dan Pengolahan
UDIMAR® alloy 300 offers good weldability and processing characteristics:
- Pengelasan: Dapat dilas menggunakan metode seperti TIG, MIG, dan pengelasan resistansi. Pemanasan awal dan perlakuan panas pasca pengelasan mungkin diperlukan untuk mempertahankan sifat-sifatnya.
- Kemampuan mesin: Umumnya dikerjakan dalam kondisi anil larutan menggunakan perkakas karbida dan cairan pemotongan yang sesuai.
Keuntungan dan Kerugian
| Aspek | Detail |
|---|---|
| Keuntungan | High strength, good corrosion and oxidation resistance, reliable performance at high temperatures, and availability in various forms and sizes. |
| Kekurangan | Biaya yang lebih tinggi dibandingkan dengan paduan nikel standar, memerlukan pemrosesan dan penanganan khusus karena kekuatan dan elemen paduannya yang tinggi. |
Perbandingan dengan Paduan Serupa
UDIMAR® alloy 300 (UNS K93120) is often compared with other high-strength nickel-based superalloys such as UDIMET® alloy 720 and UDIMET® alloy R41. Here’s a brief comparison:
| Jenis/Properti Paduan | Paduan UDIMAR® 300 | Paduan UDIMET® 720 | Paduan UDIMET® R41 |
|---|---|---|---|
| Komposisi Kimia | High nickel, cobalt, chromium, molybdenum for high-strength properties. | High nickel, cobalt, chromium, tungsten, molybdenum for high-temperature strength. | High nickel, cobalt, chromium, tungsten, molybdenum for high-temperature strength. |
| Sifat Mekanik | Higher tensile and yield strength, good toughness, and fatigue resistance. | Higher tensile and yield strength compared to UDIMAR® alloy 300, excellent oxidation resistance. | Higher tensile and yield strength compared to UDIMET® alloy 720, superior creep resistance. |
| Aplikasi | Aerospace engine components, gas turbines, and industrial applications requiring high strength and corrosion resistance. | Turbin gas, komponen luar angkasa yang membutuhkan kekuatan suhu tinggi dan ketahanan oksidasi. | Turbin gas, komponen luar angkasa yang membutuhkan kekuatan suhu tinggi dan ketahanan oksidasi. |
This detailed article introduces UDIMAR® alloy 300 (UNS K93120), highlighting its chemical composition, mechanical properties, performance characteristics, industry applications, available forms and sizes, production standards, welding and processing capabilities, as well as advantages, disadvantages, and a comparison with similar alloys. Engineers and professionals seeking a robust, high-strength nickel-based superalloy for critical applications in aerospace, power generation, and chemical processing will find UDIMAR® alloy 300 well-suited for use in demanding environments.