- Penerangan
17-4PH Stainless Steel Plate Complete Guide: Rawatan Haba, Sifat Mekanikal & Aplikasi Perindustrian
17-4PH stainless steel plate (juga dikenali sebagai UNS S17400 / 630 keluli tahan karat) ialah a precipitation-hardening martensitic stainless steel widely used in applications requiring a combination of kekuatan tinggi, rintangan kakisan yang baik, and dimensional stability.
Ia biasa digunakan dalam defense systems, nuclear components, aerospace structures, peralatan kimia, and high-load mechanical parts.
1. What is 17-4PH Stainless Steel?
| Harta benda | Penerangan |
|---|---|
| Jenis keluli | Precipitation-hardening stainless steel |
| UNS designation | S17400 |
| Equivalent grade | 630 keluli tahan karat |
| Main alloying elements | Cr, Dalam, Cu |
The strengthening mechanism is based on precipitation hardening (aging process), which allows very high mechanical strength after heat treatment.
2. Rawatan Penyelesaian + Aging Process
17-4PH performance is controlled by two key steps: solution treatment and aging.
- Rawatan penyelesaian: dissolves alloying elements into a uniform structure
- Aging treatment: precipitates strengthening phases to increase strength
| keadaan | Tingkah Laku Mekanikal |
|---|---|
| Solution treated | Lembut, good machinability |
| H900 | Maximum strength condition |
| H1025 | Kekuatan dan ketangguhan yang seimbang |
| H1150 | Higher toughness, reduced hardness |
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
| keadaan | Strength Level |
|---|---|
| Solution treated | rendah |
| H900 | Sangat tinggi |
| H1025 | tinggi (balanced) |
| H1150 | Sederhana (toughness optimized) |
4. 17-4PH vs 630 Keluli 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 (UNS S17400) | Standardized metallurgical designation |
5. Aplikasi Biasa
| industri | Contoh Aplikasi |
|---|---|
| Aeroangkasa | Komponen struktur, support brackets |
| Defense | High-strength mechanical assemblies |
| Nuclear industry | Critical load-bearing components |
| Jentera perindustrian | Aci, gears, high-load parts |
6. Pertimbangan Pemprosesan
- 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. Keupayaan Bekalan Keluli Tahan Karat Teda Ganghua
Pada Teda Ganghua, we supply high-quality 17-4PH stainless steel plates (630 gred) 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.
Terokai produk keluli tahan karat kami di sini:
Produk Plat Keluli Tahan Karat
Kesimpulan
17-4PH stainless steel plate is one of the most important precipitation-hardening alloys in modern engineering. With excellent strength, rintangan kakisan yang baik, and controllable heat treatment states, it is widely used in aerospace, nuclear, and high-performance industrial applications.
