306 Tấm thép không gỉ
“306 stainless steel plate” is generally used as a market reference for a higher-grade austenitic stainless steel with improved corrosion resistance compared to 304. It typically features higher nickel content and sometimes molybdenum addition, making it suitable for chemical, hàng hải, and high-corrosion industrial environments where standard stainless steels are not sufficient.
- Sự miêu tả
“306 stainless steel plate” is not a standard widely recognized AISI/ASTM stainless steel grade. In most industrial and international supply chains, this term is often used in error or as a market reference for high-alloy austenitic stainless steels similar to 304/316 families, especially materials with improved corrosion resistance and stability in chloride environments.
In many practical cases, buyers referring to “306 stainless steel” are actually targeting enhanced austenitic stainless steels with higher nickel or molybdenum content than 304.
Thành phần hóa học (Typical High-Alloy Austenitic Reference)
Từ 306 is not a strict standardized grade, the composition below reflects a common engineering interpretation of upgraded 300-series stainless steel used in industry:
| Yếu tố | Nội dung (%) |
|---|---|
| crom (Cr) | 17.0–19.0 |
| Niken (TRONG) | 10.0–14.0 |
| Molypden (Mo) | 2.0–3.0 (không bắt buộc, depending on variant) |
| Cacbon (C) | ≤ 0.08 |
| Mangan (Mn) | ≤ 2.00 |
| Silicon (Và) | ≤ 1.00 |
| Phốt pho (P) | ≤ 0.045 |
| lưu huỳnh (S) | ≤ 0.03 |
| Sắt (Fe) | Sự cân bằng |
Tính chất cơ học
High-alloy austenitic stainless steels in this category provide balanced strength and excellent toughness.
| Tài sản | Giá trị điển hình |
|---|---|
| Độ bền kéo | 520–750 MPa |
| Sức mạnh năng suất | ≥ 205 MPa |
| Độ giãn dài | ≥ 40% |
| độ cứng | ≤ 200 HB |
| Tỉ trọng | 7.9 g/cm³ |
Tính năng hiệu suất chính
1. Chống ăn mòn tuyệt vời
This material is designed for environments requiring strong resistance to:
- Chloride exposure
- Moist marine atmosphere
- Chemical processing conditions
- Acidic industrial environments
If molybdenum is included, resistance to pitting and crevice corrosion is significantly improved.
2. Good High-Temperature Stability
The alloy maintains stable mechanical performance under moderate elevated temperatures, making it suitable for:
- Bộ trao đổi nhiệt
- Industrial furnaces (non-extreme zones)
- Thiết bị xử lý nhiệt
3. Excellent Formability and Weldability
Like other austenitic stainless steels, it provides:
- Hàn dễ dàng (TIG, TÔI, vân vân.)
- Good deep drawing capability
- Excellent bending performance
- Stable structure without heat treatment hardening
4. Non-Magnetic or Weakly Magnetic
Ở trạng thái ủ, it is generally non-magnetic, which is useful for precision equipment and industrial applications.
Common Applications of “306 Stainless Steel Plate”
Because it is interpreted as a high-performance austenitic stainless steel, it is commonly used in:
- Thiết bị xử lý hóa chất
- Heat exchanger plates
- Linh kiện kỹ thuật hàng hải
- Desalination systems
- Food processing machinery
- Thiết bị dược phẩm
- Storage tanks and pressure vessels
- Architectural structures in corrosive environments
- Linh kiện bơm và van
- Hệ thống đường ống công nghiệp
Comparison: 306-Type vs 304 thép không gỉ
| Tài sản | 306-Type Stainless | 304 thép không gỉ |
|---|---|---|
| Chống ăn mòn | Cao hơn | Tiêu chuẩn |
| Alloy Content | Higher Ni / possible Mo | Thấp hơn |
| Kháng clorua | Tốt hơn | Vừa phải |
| Mức chi phí | Cao hơn | Thấp hơn |
| Ứng dụng | Môi trường khắc nghiệt | sử dụng chung |
