Beschreibung
Inhaltsverzeichnis
- Spezifikationen von Edelstahl 321 / 321H-Flansche
- Size Range of A182 321 / 321H Pipe Flange
- Chemical Composition of SS 321 / 321H Flange
- Mechanical Properties ASME 321 Rohrflansch
- Types of Stainless Steel 321/321H Pipe Flange
- 321 / 321H Stainless Steel Flange Equivalent Grades
- 321 / 321H SS Blind Flange Stock List
- Anwendungen von Edelstahl 321 / 321H-Flansche
- FAQs – Stainless Steel 321 / 321H-Flansche
321/321H Stainless Steel Flange
Edelstahl 321 / 321H-Flansche are titanium-stabilized austenitic stainless steel flanges engineered for excellent performance in high-temperature and corrosive environments. Grad 321 is designed to resist intergranular corrosion after exposure to temperatures in the range of 427–816°C, making it ideal for thermal cycling applications. Güteklasse 321H, with a higher carbon content, offers improved high-temperature strength and creep resistance. These flanges are commonly used in heat exchangers, Druckbehälter, refinery units, and exhaust systems. With good weldability, formability, and resistance to oxidation up to 900°C, SS 321/321H flanges are a reliable choice for industries requiring long-term performance in extreme conditions.
Spezifikationen von Edelstahl 321 / 321H-Flansche
| Standards | GOST Flange, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092, BS, BS4504, BS 10, EN-1092, DIN, ANSI, ASME, DIN, MSS S44, ISO70051, ANSI/ASME B16.5, ASME/ANSI B16.5/16.36/16.47A/16.47B, B16.47 Series A & B, B16.48, EN |
|---|---|
| Druckstufe ANSI | Klasse 1500, Klasse 150, Klasse 900, Klasse 2500, Klasse 300, Klasse 600, |
| Druckberechnung in DIN | 10Bar, 16Bar, 25Bar, 40Bar, 6Bar, / PN16, PN64, PN40, PN25, PN10, PN6 |
| JIS | 16 K, 20 K, 5K, 10 K, 40 K, 63 K, 30 K, |
| UNI | 10Bar 16Bar 6Bar 25Bar 40Bar |
| EN | 6Bar 25Bar 40Bar 10Bar 16Bar |
| Most common Types | Mit Gewinde / Verschraubt / Geschmiedet / Platte |
| Produktionstechnik |
|
| Formen und Typen, die wir produzieren | Großes Männchen-Weibchen (LMF), Ringgelenk (RTJ), Flaches Gesicht (FF), Kleine Zunge, Kleines Männchen-Weibchen (SMF),Erhöhtes Gesicht (RF), Große Zunge & Rille, Rille, Überlappungsgelenkfläche (LJF) |
| Prüfen | Direkt ablesbarer Spektrograph, Magnetpartikeldetektor, Hydrostatische Prüfmaschine, Röntgendetektor, UI trasonic flaw detector |
| Ausrüstung | Schiebemaschine, Pressmaschine, Biegemaschine, Sandstrahlmaschine, electric bevelling machine etc |
Size Range of A182 321 / 321H Pipe Flange
- UNS S32100 Flansch : 1/2″ (15 Hinweis:) bis 48″ (1200Hinweis:)
- ASME SA182 F321 Blind Flange : 1/2″ NB – 24″ NB
- SS A182 F321H Slip on Flange : 1/2″ NB – 12″ NB
Chemical Composition of SS 321 / 321H Flange
| Grad | C | Mn | Und | P | S | Cr | N | In | Von |
| SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(C+N) – 0.70 max |
| SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
Mechanical Properties ASME 321 Rohrflansch
| Dichte | Schmelzpunkt | Zugfestigkeit | Streckgrenze (0.2%Versatz) | Verlängerung |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Types of SS 321 / 321H Flange
 |  |  |  |
| Blindflansche | Überlappungsflansche | Lange Vorschweißflansche | Plattenflansche |
 |  |  |  |
| Reduzierflansche | Ringverbindungsflansche | Aufsteckflansche | Muffenschweißflansche |
 |  |  |  |
| Vorschweißflansche | Zunge & Nutflansche | Mit Gewinde / Schraubflansche | Brillen-Blindflansche |
321 / 321H Stainless Steel Flange Equivalent grades
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 321 | 1.4541 | S32100 | IHRE 321 | X6CrNiTi18-10 |
| SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
321 / 321H SS Blind Flange Stock List
| Edelstahl 321 Flansch | 321 SS Blind Flange |
| 321H Stainless Steel Slip on Flange | SS A182 F321H Threaded Flange |
| UNS S32100 Reduzierflansch | Edelstahl 1.4541 Muffenschweißflansch |
| ASTM A182 F321H Weld Neck Flanges | ASME SA182 F321 Lap Joint Flanges |
| Edelstahl 1.4541 Lange Vorschweißflansche | 321H Stainless Steel Spectacle Blind Flanges |
| UNS S32100 Spaten & Ringabstandshalter | 321 SS Nipoflange |
| SS A182 F321H 5D Weldoflange | ASTM A182 F321H Flange Outlet |
| Edelstahl 321 Geschmiedete Flansche | Edelstahl 1.4541 Plattenflansch |
| SS A182 F321H Ring Type Joint Flanges | UNS S32100 Erhöhte Flansche |
| ASME SA182 F321 Tongue and Groove Flanges | 321H Stainless Steel Male and Female Flange |
| ASTM A182 F321H Reducing Flanges | 321 SS ASME B16.5 Flansche |
| Edelstahl 321 Flansche | Edelstahl 1.4541 BS 10 Flansche |
| UNS S32100 BS 4504 Flansche | SS A182 F321H EN 1092-1 Flansche |
| ASTM A182 F321H SORF Flange | 321H Stainless Steel BLRF Flange |
| 321 SS WNRF Flange | Edelstahl 321 Überlappungsringflansch der Serie A |
| Edelstahl 1.4541 Blindflansch PN16 | UNS S32100 Geschmiedeter Muffenschweißrohrflansch |
| 321H Stainless Steel Class 300 Aufsteckflansch | ASTM A182 F321H Slip On Weld Flange |
| SS A182 F321H Forged steel slip on flanges | 321 SS Race face slip on flange |
| Edelstahl 321 SWRF-Flansch | ASME SA182 F321 Forged blind flange |
| 321H Stainless Steel groove weld neck flange | Edelstahl 1.4541 Muffenschweißnabenflansch |
| UNS S32100 Überlappungsflansch mit Gewinde | 321 SS Slip On Integral flange |
| ASME SA182 F321 Forged integral puddle flange | SS A182 F321H table e long weld neck |
| 321H Stainless Steel Class 150 LBS-Flansch | ASME SA182 F321 PN10 Forged Flanges |
Anwendungen von Edelstahl 321 / 321H-Flansche
Edelstahl 321 and 321H flanges are widely used in industries that demand high-temperature strength, Korrosionsbeständigkeit, and structural stability. These flanges are ideal for:
Wärmetauscher – Withstand thermal cycling and intergranular corrosion in petrochemical systems.
Furnace and Boiler Components – Provide long-term stability under continuous high-heat service.
Exhaust Manifolds and Ducting – Common in aircraft, Automobil, and power plant exhaust systems.
Refinery and Chemical Processing Units – Handle aggressive media and fluctuating pressures.
Pressure Vessels and Reactors – Especially in environments involving organic and inorganic acids.
Thermal Oxidizers and Flue Gas Systems – Withstand oxidative conditions in waste treatment and incineration plants.
Power Generation Plants – Used in steam piping and turbine exhaust sections.
These flanges are especially valued in applications where resistance to sensitization and high-temperature oxidation is critical, making SS 321/321H flanges a preferred choice in high-performance industrial systems.
FAQs – Stainless Steel 321 / 321H-Flansche
Q1: Was ist der Unterschied zwischen 321 and 321H stainless steel flanges?
A: The main difference lies in the carbon content. 321H has a higher carbon content (0.04–0,10 %) compared to 321 (max 0.08%), which improves high-temperature strength and creep resistance. 321H is preferred for applications above 537°C (1000°F).
Q2: Are 321/321H flanges resistant to intergranular corrosion?
A: Ja. Grad 321 is specifically stabilized with titanium to prevent chromium carbide precipitation, which makes it highly resistant to intergranular corrosion after exposure to high temperatures.
Q3: What temperature range can Stainless Steel 321 / 321H flanges withstand?
A: These flanges offer excellent performance in continuous service up to 900°C (1650°F), making them ideal for high-temperature industrial environments.
Q4: Can 321/321H flanges be welded?
A: Ja. Both grades offer good weldability using standard welding methods. Jedoch, post-weld heat treatment is typically not required for 321, while it may be considered for 321H in certain critical applications.
Q5: In which industries are SS 321 / 321H flanges most commonly used?
A: They are widely used in oil & Gas, Petrochemie, Stromerzeugung, Luft- und Raumfahrt, and thermal processing industries—especially where exposure to elevated temperatures and corrosive gases is frequent.
