2205 シート

2205 シート

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. と比較して 2507 超二相ステンレス鋼, 2205 offers a more economical solution while still providing excellent mechanical strength and corrosion resistance for most engineering applications.

説明

2205 duplex stainless steel sheet is one of the most widely used duplex stainless steels, 組み合わせる austenitic and ferritic phases in its microstructure. This dual-phase structure gives it a unique balance of 高強度, 優れた耐食性, and good stress corrosion cracking resistance.

の化学組成 2205 ステンレス鋼

2205 is designed with higher chromium and molybdenum content compared to standard austenitic grades.

要素	コンテンツ (%)	関数
クロム (Cr)	21–23%	耐食性
ニッケル (で)	4.5-6.5%	Stabilizes duplex structure
モリブデン (モー)	2.5–3.5%	Pitting corrosion resistance
窒素 (N)	0.08–0.20%	Strength and stability
炭素 (C)	≤0.03%	Reduces carbide formation
マンガン (ん)	≤2.0%	靭性の向上

の主なパフォーマンス特性 2205 シート

1. 高強度

2205 duplex stainless steel has approximately:

2× the strength of 304 ステンレス鋼

This allows:

Thinner material use
Reduced structural weight
Higher load-bearing capacity

2. 優れた耐食性

塩化物環境に対する強い耐性
孔食および隙間腐食に対する高い耐性
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 対 2507 二相ステンレス鋼

2507 (スーパー二相ステンレス鋼) is the higher-grade version of 2205.

主な違い

財産	2205 デュプレックス	2507 スーパーデュプレックス
クロム (Cr)	21–23%	24–26%
ニッケル (で)	4.5-6.5%	6–8%
モリブデン (モー)	2.5–3.5%	3–5%
強さ	高い	非常に高い
耐食性	素晴らしい	優れた
Pitting resistance	良い	並外れた
Cost level	適度	より高い