- Sự miêu tả
17-4PH Stainless Steel Plate Complete Guide: Xử lý nhiệt, Tính chất cơ học & Industrial Applications
17-4PH stainless steel plate (còn được gọi là UNS S17400 / 630 thép không gỉ) là một precipitation-hardening martensitic stainless steel widely used in applications requiring a combination of cường độ cao, chống ăn mòn tốt, and dimensional stability.
Nó thường được sử dụng trong defense systems, nuclear components, aerospace structures, thiết bị hóa học, and high-load mechanical parts.
1. What is 17-4PH Stainless Steel?
| Tài sản | Sự miêu tả |
|---|---|
| Steel type | Precipitation-hardening stainless steel |
| UNS designation | S17400 |
| Equivalent grade | 630 thép không gỉ |
| Main alloying elements | Cr, TRONG, Củ |
The strengthening mechanism is based on lượng mưa cứng lại (aging process), which allows very high mechanical strength after heat treatment.
2. Giải pháp xử lý + Aging Process
17-4PH performance is controlled by two key steps: solution treatment and aging.
- Giải pháp xử lý: dissolves alloying elements into a uniform structure
- Aging treatment: precipitates strengthening phases to increase strength
| Tình trạng | Mechanical Behavior |
|---|---|
| Solution treated | Mềm mại, good machinability |
| H900 | Maximum strength condition |
| H1025 | Cân bằng sức mạnh và độ dẻo dai |
| 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
| Tình trạng | Strength Level |
|---|---|
| Solution treated | Thấp |
| H900 | Rất cao |
| H1025 | Cao (balanced) |
| H1150 | Vừa phải (toughness optimized) |
4. 17-4PH vs 630 thép không gỉ
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. Ứng dụng điển hình
| Ngành công nghiệp | Application Examples |
|---|---|
| Hàng không vũ trụ | Thành phần kết cấu, support brackets |
| Defense | High-strength mechanical assemblies |
| Nuclear industry | Critical load-bearing components |
| Máy móc công nghiệp | Trục, gears, high-load parts |
6. Xử lý cân nhắc
- 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. Khả năng cung cấp thép không gỉ Teda Ganghua
Tại Teda Ganghua, we supply high-quality 17-4PH stainless steel plates (630 cấp) 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.
Khám phá các sản phẩm thép không gỉ của chúng tôi tại đây:
Sản phẩm tấm thép không gỉ
Phần kết luận
17-4PH stainless steel plate is one of the most important precipitation-hardening alloys in modern engineering. With excellent strength, chống ăn mòn tốt, and controllable heat treatment states, it is widely used in aerospace, nuclear, and high-performance industrial applications.
