

2205 시트
2205 duplex stainless steel sheet is a high-strength, corrosion-resistant material with a balanced duplex microstructure, making it one of the most widely used stainless steels in industrial environments. 와 비교하다 2507 슈퍼 듀플렉스 스테인레스 스틸, 2205 offers a more economical solution while still providing excellent mechanical strength and corrosion resistance for most engineering applications.
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2205 duplex stainless steel sheet is one of the most widely used duplex stainless steels, 결합 austenitic and ferritic phases in its microstructure. This dual-phase structure gives it a unique balance of 고강도, 우수한 내식성, and good stress corrosion cracking resistance.
화학 성분 2205 스테인레스 스틸
2205 is designed with higher chromium and molybdenum content compared to standard austenitic grades.
| 요소 | 콘텐츠 (%) | 기능 |
|---|---|---|
| 크롬 (Cr) | 21-23% | 내식성 |
| 니켈 (~ 안에) | 4.5-6.5% | Stabilizes duplex structure |
| 몰리브덴 (모) | 2.5–3.5% | Pitting corrosion resistance |
| 질소 (N) | 0.08-0.20% | Strength and stability |
| 탄소 (기음) | 0.03% 이하 | Reduces carbide formation |
| 망간 (망) | ≤2.0% | 인성 향상 |
주요 성능 특성 2205 시트
1. 고강도
2205 duplex stainless steel has approximately:
- 2× the strength of 304 스테인레스 스틸
This allows:
- Thinner material use
- Reduced structural weight
- Higher load-bearing capacity
2. 우수한 내식성
- 염화물 환경에 대한 강한 내성
- High resistance to pitting and crevice corrosion
- Suitable for marine and chemical applications
3. Good Stress Corrosion Cracking Resistance
Compared to austenitic stainless steels:
- Much better resistance in chloride-rich environments
- Stable performance under stress and temperature variation
4. Balanced Duplex Microstructure
- ~50% austenite
- ~50% ferrite
This structure provides:
- Strength from ferrite
- Toughness from austenite
2205 대 2507 듀플렉스 스테인레스 스틸
2507 (슈퍼 듀플렉스 스테인레스 스틸) is the higher-grade version of 2205.
주요 차이점
| 재산 | 2205 듀플렉스 | 2507 슈퍼 듀플렉스 |
|---|---|---|
| 크롬 (Cr) | 21-23% | 24-26% |
| 니켈 (~ 안에) | 4.5-6.5% | 6-8% |
| 몰리브덴 (모) | 2.5–3.5% | 3-5% |
| 힘 | 높은 | 매우 높음 |
| 내식성 | 훌륭한 | 우수한 |
| Pitting resistance | 좋은 | Outstanding |
| Cost level | 보통의 | 더 높은 |
성능 비교 요약
의 장점 2205
- Excellent cost-performance balance
- High strength suitable for most industrial use
- Strong resistance to chloride corrosion
- Widely available and easy to fabricate
의 장점 2507
- Higher corrosion resistance in extreme environments
- Better performance in offshore and seawater systems
- Higher mechanical strength
- Suitable for highly aggressive chemical conditions
일반적인 응용 분야
2205 이중 스테인레스 스틸 시트
- 화학 처리 장비
- 해양 환경
- 압력 용기
- 석유 및 가스 파이프라인
- 열교환기
2507 Super Duplex Stainless Steel Sheet
- 해양 플랫폼
- Desalination plants
- Highly corrosive chemical systems
- Deep-sea engineering equipment












