Descripción
Tabla de contenido
- Specifications of Stainless Steel 321 / 321Bridas H
- Size Range of A182 321 / 321H Pipe Flange
- Chemical Composition of SS 321 / 321H Flange
- Mechanical Properties ASME 321 Brida de tubería
- Types of Stainless Steel 321/321H Pipe Flange
- 321 / 321H Stainless Steel Flange Equivalent Grades
- 321 / 321H SS Blind Flange Stock List
- Aplicaciones del acero inoxidable 321 / 321Bridas H
- FAQs – Stainless Steel 321 / 321Bridas H
321/321H Stainless Steel Flange
Acero inoxidable 321 / 321Bridas H are titanium-stabilized austenitic stainless steel flanges engineered for excellent performance in high-temperature and corrosive environments. Calificación 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. Grado 321H, with a higher carbon content, offers improved high-temperature strength and creep resistance. These flanges are commonly used in heat exchangers, recipientes a presión, 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.
Specifications of Stainless Steel 321 / 321Bridas H
| Estándares | Brida GOST, 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 Serie A & B, B16.48, EN |
|---|---|
| Clasificación de presión ANSI | Clase 1500, Clase 150, Clase 900, Clase 2500, Clase 300, Clase 600, |
| Cálculo de presión en 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 | 10Barra 16bar 6bar 25bar 40bar |
| EN | 6Barra 25bar 40bar 10bar 16bar |
| Tipos más comunes | roscado / Roscado / Falsificado / Lámina |
| Técnica de producción |
|
| Formas y tipos que producimos. | Grande macho-hembra (LMF), Junta tipo anillo (RTJ), Cara plana (FF), lengua pequeña, Pequeño Macho-Hembra (SMF),cara levantada (RF), lengua grande & Ranura, Ranura, Cara de junta superpuesta (LJF) |
| Prueba | Espectrógrafo de lectura directa, Detector de partículas magnéticas, Máquina de prueba hidrostática, detector de rayos X, Detector de fallas trasónicas de UI |
| Equipo | Máquina de empujar, maquina de prensa, máquina dobladora, Máquina de chorro de arena, biseladora eléctrica, etc. |
Size Range of A182 321 / 321H Pipe Flange
- UNS S32100 Brida : 1/2″ (15 NÓTESE BIEN) a 48″ (1200NÓTESE BIEN)
- 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
| Calificación | do | Minnesota | Y | PAG | S | cr | norte | En | De |
| SS 321 | 0.08 máximo | 2.0 máximo | 1.0 máximo | 0.045 máximo | 0.030 máximo | 17.00 – 19.00 | 0.10 máximo | 9.00 – 12.00 | 5(C+N) – 0.70 máximo |
| SS 321H | 0.04 – 0.10 | 2.0 máximo | 1.0 máximo | 0.045 máximo | 0.030 máximo | 17.00 – 19.00 | 0.10 máximo | 9.00 – 12.00 | 4(C+N) – 0.70 máximo |
Mechanical Properties ASME 321 Brida de tubería
| Densidad | Punto de fusión | Resistencia a la tracción | Fuerza de producción (0.2%Compensar) | Alargamiento |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Types of SS 321 / 321H Flange
 |  |  |  |
| Bridas | Bridas de junta solapada | Bridas de cuello largo para soldar | Bridas de placa |
 |  |  |  |
| Bridas reductoras | Bridas de junta tipo anillo | Bridas deslizantes | Bridas de soldadura |
 |  |  |  |
| Bridas con cuello soldado | Lengua & Bridas de ranura | roscado / Bridas atornilladas | Bridas ciegas para gafas |
321 / 321H Stainless Steel Flange Equivalent grades
| ESTÁNDAR | NÚMERO DE MATERIAL. | A NOSOTROS | JIS | EN |
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
| SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
321 / 321H SS Blind Flange Stock List
| Acero inoxidable 321 Brida | 321 SS Blind Flange |
| 321H Stainless Steel Slip on Flange | SS A182 F321H Threaded Flange |
| UNS S32100 Brida reductora | Acero inoxidable 1.4541 Brida de soldadura |
| ASTM A182 F321H Weld Neck Flanges | ASME SA182 F321 Lap Joint Flanges |
| Acero inoxidable 1.4541 Bridas de cuello largo para soldar | 321H Stainless Steel Spectacle Blind Flanges |
| UNS S32100 Espadas & Espaciadores de anillos | 321 SS Nipoflange |
| SS A182 F321H 5D Weldoflange | ASTM A182 F321H Flange Outlet |
| Acero inoxidable 321 Bridas forjadas | Acero inoxidable 1.4541 Brida de placa |
| SS A182 F321H Ring Type Joint Flanges | UNS S32100 Bridas de cara elevada |
| ASME SA182 F321 Tongue and Groove Flanges | 321H Stainless Steel Male and Female Flange |
| ASTM A182 F321H Reducing Flanges | 321 SS ASME B16.5 Bridas |
| Acero inoxidable 321 Bridas | Acero inoxidable 1.4541 Bs 10 Bridas |
| UNS S32100 Bs 4504 Bridas | SS A182 F321H EN 1092-1 Bridas |
| ASTM A182 F321H SORF Flange | 321H Stainless Steel BLRF Flange |
| 321 SS WNRF Flange | Acero inoxidable 321 Brida de anillo de junta traslapada serie a |
| Acero inoxidable 1.4541 Brida ciega PN16 | UNS S32100 Brida de tubo de soldadura de zócalo forjado |
| 321H Stainless Steel Class 300 brida deslizante | ASTM A182 F321H Slip On Weld Flange |
| SS A182 F321H Forged steel slip on flanges | 321 SS Race face slip on flange |
| Acero inoxidable 321 Brida SWRF | ASME SA182 F321 Forged blind flange |
| 321H Stainless Steel groove weld neck flange | Acero inoxidable 1.4541 Brida de cubo de soldadura por enchufe |
| UNS S32100 brida de junta traslapada roscada | 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 Brida LBS | ASME SA182 F321 PN10 Forged Flanges |
Aplicaciones del acero inoxidable 321 / 321Bridas H
Acero inoxidable 321 and 321H flanges are widely used in industries that demand high-temperature strength, resistencia a la corrosión, and structural stability. These flanges are ideal for:
Intercambiadores de calor – 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, automotive, 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 / 321Bridas H
Q1: ¿Cuál es la diferencia entre 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 (máximo 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: Sí. Calificación 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: Sí. Both grades offer good weldability using standard welding methods. Sin embargo, 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, petroquímico, generación de energía, aeroespacial, and thermal processing industries—especially where exposure to elevated temperatures and corrosive gases is frequent.
