Uns S32750 表
UNS S32750 sheet is a super duplex stainless steel material with outstanding strength and excellent corrosion resistance. 它的铬很高, 钼, and nitrogen content make it highly resistant to chloride and seawater corrosion.
Because of its superior mechanical and corrosion-resistant properties, UNS S32750 is widely used in oil and gas, 海洋工程, 化学加工, and high-performance industrial systems where standard stainless steels are not sufficient.
- 描述
UNS S32750 sheet is a super duplex stainless steel material with very high strength and excellent corrosion resistance. It is commonly known as 2507 超级双相不锈钢 and is widely used in harsh industrial environments where ordinary stainless steels cannot provide sufficient performance.
The microstructure of UNS S32750 combines:
- Austenitic stainless steel characteristics
- Ferritic stainless steel characteristics
This dual-phase structure gives the material both high mechanical strength and strong corrosion resistance.
Chemical Composition of UNS S32750
UNS S32750 contains high levels of chromium, 钼, 和氮气, which significantly improve corrosion resistance.
| 元素 | 内容 (%) | 功能 |
|---|---|---|
| 铬 (铬) | 24.0 – 26.0 | 提高耐腐蚀性 |
| 镍 (在) | 6.0 – 8.0 | Enhances toughness and stability |
| 钼 (莫) | 3.0 – 5.0 | Improves pitting resistance |
| 氮 (氮) | 0.24 – 0.32 | Increases strength and corrosion resistance |
| 碳 (C) | ≤ 0.03 | Improves weldability |
| 铁 (铁) | 平衡 | Base metal |
Mechanical Properties of UNS S32750 Sheet
UNS S32750 has much higher strength than standard stainless steel grades such as 304 或者 316.
| 财产 | 表现 |
|---|---|
| 抗拉强度 | 非常高 |
| 屈服强度 | Approximately twice that of 316 不锈钢 |
| 硬度 | 高的 |
| Impact toughness | 好的 |
| 抗疲劳性 | 出色的 |
The material is especially suitable for high-pressure and heavy-load environments.
耐腐蚀性能
One of the main advantages of UNS S32750 is its outstanding corrosion resistance.
Excellent Resistance To:
- Chloride corrosion
- Pitting corrosion
- Crevice corrosion
- Stress corrosion cracking
- Seawater corrosion
This makes it suitable for marine and chemical industries.
Key Features of UNS S32750 Sheet
1. 高强度
Super duplex structure provides:
- High load-bearing capability
- Reduced material thickness possibility
- Better structural efficiency
2. 优异的耐腐蚀性
The high chromium and molybdenum content significantly improves corrosion resistance in aggressive environments.
3. 良好的焊接性
Although it is a high-alloy material, UNS S32750 can still be welded using appropriate procedures.
4. Long Service Life
The material performs well in:
- Humid environments
- Chemical exposure
- 海洋条件
- High-pressure systems
Common Applications of UNS S32750 Sheet
UNS S32750 sheets are widely used in industries requiring high strength and corrosion resistance.
石油和天然气行业
- 海上平台
- Subsea equipment
- 热交换器
- Pressure vessels
- 管道系统
化学加工行业
- 化学品储罐
- 处理设备
- Corrosion-resistant reactors
- 工业管道系统
海洋工程
- Seawater desalination equipment
- Shipbuilding components
- Marine structural systems
- Saltwater handling equipment
Energy Industry
- Power plant systems
- Flue gas desulfurization equipment
- High-pressure industrial systems
Structural and Industrial Applications
- Heavy-duty structural panels
- High-strength industrial components
- Aggressive environment fabrication systems
Comparison With 316 不锈钢
| 物品 | 美国S32750 | 316 不锈钢 |
|---|---|---|
| 力量 | 非常高 | 中等的 |
| 耐腐蚀 | 出色的 | 好的 |
| 耐氯性 | 出色的 | 缓和 |
| 成本 | 更高 | 降低 |
| Marine performance | 优越的 | 标准 |
UNS S32750 is generally selected for more demanding environments than 316 不锈钢.
Common Sheet Specifications
| 厚度范围 | 常见应用 |
|---|---|
| 0.5 – 3 毫米 | Precision and chemical equipment |
| 3 – 10 毫米 | Structural and industrial systems |
| 10 毫米+ | Heavy-duty pressure applications |
Custom sizes and processing are commonly available.
