- Keterangan
17-4PH Stainless Steel Plate Complete Guide: Perlakuan Panas, Sifat Mekanik & Aplikasi Industri
17-4PH stainless steel plate (juga dikenal sebagai S17400 AS / 630 baja tahan karat) adalah a precipitation-hardening martensitic stainless steel widely used in applications requiring a combination of kekuatan tinggi, ketahanan korosi yang baik, and dimensional stability.
Ini biasanya digunakan di defense systems, nuclear components, aerospace structures, peralatan kimia, and high-load mechanical parts.
1. What is 17-4PH Stainless Steel?
| Milik | Keterangan |
|---|---|
| Steel type | Precipitation-hardening stainless steel |
| UNS designation | S17400 |
| Equivalent grade | 630 baja tahan karat |
| Main alloying elements | Kr, Di dalam, Cu |
The strengthening mechanism is based on pengerasan presipitasi (aging process), which allows very high mechanical strength after heat treatment.
2. Pengobatan larutan + Aging Process
17-4PH performance is controlled by two key steps: solution treatment and aging.
- Perawatan solusi: dissolves alloying elements into a uniform structure
- Aging treatment: precipitates strengthening phases to increase strength
| Kondisi | Perilaku Mekanis |
|---|---|
| Solution treated | Lembut, good machinability |
| H900 | Maximum strength condition |
| H1025 | Kekuatan dan ketangguhan yang seimbang |
| H1150 | Higher toughness, kekerasan berkurang |
3. Mechanical Properties Overview
- Very high tensile strength after aging
- Good corrosion resistance in moderate environments
- Excellent dimensional stability after heat treatment
- Good fatigue resistance for cyclic loading
| Kondisi | Strength Level |
|---|---|
| Solution treated | Rendah |
| H900 | Sangat tinggi |
| H1025 | Tinggi (balanced) |
| H1150 | Sedang (toughness optimized) |
4. 17-4PH vs 630 Baja Tahan Karat
17-4PH and 630 stainless steel refer to the same material system, with different naming conventions used across industries.
| Designation | Usage Context |
|---|---|
| 17-4PH | Common industrial / aerospace naming |
| 630 (S17400 AS) | Standardized metallurgical designation |
5. Aplikasi Khas
| Industri | Application Examples |
|---|---|
| Luar angkasa | Komponen struktural, support brackets |
| Defense | High-strength mechanical assemblies |
| Nuclear industry | Critical load-bearing components |
| Mesin industri | Poros, gears, high-load parts |
6. Pertimbangan Pemrosesan
- Machining is easier in solution-treated condition
- Aging should be performed after final shaping
- Heat treatment must be tightly controlled for consistency
- Welding requires careful procedure control
7. Kemampuan Pasokan Baja Tahan Karat Teda Ganghua
Pada Teda Ganghua, we supply high-quality 17-4PH stainless steel plates (630 nilai) with stable precipitation-hardening performance. Our materials are widely used in aerospace, nuclear engineering, and high-strength industrial systems.
We provide precision cutting, heat-treatment coordination, and customized fabrication services to meet strict engineering requirements for global customers.
Jelajahi produk baja tahan karat kami di sini:
Produk Plat Stainless Steel
Kesimpulan
17-4PH stainless steel plate is one of the most important precipitation-hardening alloys in modern engineering. With excellent strength, ketahanan korosi yang baik, and controllable heat treatment states, it is widely used in aerospace, nuclear, and high-performance industrial applications.
