Descripción
Detalle del producto
Hastelloy lap joint flanges are backing flanges designed to be used with a compatible stub end, allowing easy alignment and dismantling in piping systems handling highly corrosive media. Compared with integral flanges, the lap joint design reduces replacement cost in alloy piping because the flange does not contact the process fluid directly when matched with the correct stub end material. These flanges are widely used in chemical plants, plataformas marinas, flue gas treatment, acid service and high-purity process lines.
SASA FLANGE supplies Hastelloy lap joint flanges in standard and customized dimensions according to ASME, EN, DIN, JIS, GB and project drawings. Each batch can be delivered with chemical analysis, pruebas mecanicas, inspección dimensional, Pruebas del PMI, EN 10204 3.1 certificate and full heat number traceability to support critical industrial procurement requirements.
- ✓Nombre del producto: Hastelloy Lap Joint Flanges
- ✓Grado del material: Hastelloy C22, C276, B2, C2000
- ✓Tipo de producto: Brida articular / Loose Backing Flange
- ✓Característica principal: Excellent corrosion resistance with easy bolt hole alignment and economical maintenance
- ✓Aplicaciones: Procesamiento químico, acid service, tubería costa afuera, plantas de energía, marine and water treatment
Parámetros del producto
| Nombre del producto | Hastelloy Lap Joint Flanges |
| Grado del material | Hastelloy C22, Hastelloy C276, Hastelloy B2, Hastelloy C2000 |
| Tipo de material | Nickel-based corrosion resistant alloy |
| Formulario de producto | Brida forjada, cut plate flange, machined loose flange for use with stub end |
| Rango de tamaño | DN15 – DN1500 (1/2 pulgada – 60 pulgada) |
| Clase de presión | Clase 150 – 2500 / PN10 – PN100 |
| Cara de sellado | Flat Face backing flange for use with lap joint stub end, custom facing on request |
| Tratamiento superficial | Decapado, pasivación, acabado mecanizado, protective oil on machined surfaces |
| Estándar | ASME B16.5, ASME B16.47, EN 1092-1, DIN, JIS B2220, GB/T 9119 o especificación del cliente |
| Inspección | Análisis químico, Prueba mecánica, Prueba PMI, Inspección dimensional, Inspección visual |
| Certificado | EN 10204 3.1 Certificado de material disponible |
| Servicio de procesamiento | Corte, Mecanizado CNC, Perforación personalizada, Procesamiento de tamaño personalizado |
Composición química
Chemical composition values below are for general reference for common Hastelloy flange grades. Actual composition depends on the selected alloy, melting route and applicable ASTM or ASME material specification. Final supply condition and exact chemistry shall conform to the approved material standard and the issued mill test certificate.
| Elemento | do | Y | Minnesota | PAG | S | cr | En | Mes | Otro |
|---|---|---|---|---|---|---|---|---|---|
| Hastelloy C276 | 0.01 máximo | 0.08 máximo | 1.00 máximo | 0.04 máximo | 0.03 máximo | 14.5-16.5 | Bal. | 15.0-17.0 | fe 4.0-7.0, W 3.0-4.5, Co 2.5 máximo, V 0.35 máximo |
Propiedades mecánicas
Mechanical properties are typical reference values for commonly used Hastelloy flange materials in annealed condition. Actual tensile strength, límite elástico, elongation and hardness can vary according to grade, forma del producto, section thickness and heat treatment. Certified test results are supplied according to the governing material specification and project inspection requirements.
| Calificación | Resistencia a la tracción | Fuerza de producción | Alargamiento | Dureza | Densidad |
|---|---|---|---|---|---|
| Hastelloy C22 | 690 MPa mín. | 310 MPa mín. | 45% mín. | 95 HRB max | 8.69 g/cm3 |
| Hastelloy C276 | 690 MPa mín. | 283 MPa mín. | 40% mín. | 100 HRB max | 8.89 g/cm3 |
Tabla de tamaños comunes
| Rango de tamaño | Clase de presión | Cara de sellado | Material | Disponibilidad |
|---|---|---|---|---|
| DN15 – DN50 | Clase 150 – 600 | Lap Joint Backing Flange | Hastelloy C22 / C276 | Existencias / Producción |
| DN65 – DN300 | Clase 150 – 1500 | Lap Joint Backing Flange | Hastelloy C22 / C276 / B2 | Existencias / Producción |
| DN350 – DN600 | Clase 150 – 2500 | Lap Joint Backing Flange | Hastelloy C276 / C2000 | Producción |
| DN700 – DN1500 | Clase 150 – 900 | Lap Joint Backing Flange | Hastelloy C276 | Hecho a pedido |
Comparación de diferentes especificaciones
| Tipo | Descripción | Uso típico |
|---|---|---|
| ASME Lap Joint Flange | Loose backing flange used with lap joint stub end under ASME B16.5 or B16.47 dimensions | Process piping in oil, gas, chemical and offshore systems |
| EN Lap Joint Flange | Lap joint flange to EN 1092-1 with PN pressure rating and metric dimensions | European industrial plants, water and chemical lines |
| Forged Hastelloy Lap Joint Flange | Machined from forged alloy blank for better structural integrity and dimensional control | High pressure, critical corrosion and project-grade service |
| Plate-Cut Hastelloy Lap Joint Flange | Produced from alloy plate and finish machined for larger diameters or custom designs | Low to medium pressure large-size piping and special fabrications |
Normas equivalentes y nombres internacionales
Lap joint flanges can be produced to multiple international dimensional standards, while the alloy material grade is selected separately according to ASTM or ASME nickel alloy specifications. Equivalent naming may vary by region, but UNS number and chemical composition are the most reliable references for procurement and technical approval.
| Estándar / Región | Código estándar | Grado típico / Equivalente |
|---|---|---|
| EE.UU | ASME B16.5 | Hastelloy C276 / UNS N10276, Hastelloy C22 / UNS N06022 |
| Europa | EN 1092-1 | Ni-Cr-Mo alloy flange in C276 or C22 equivalent material |
| Alemania | DIN 2527 / 2566 | Loose flange dimensions with alloy equivalent to 2.4819 / 2.4602 by project request |
| Japón | JIS B2220 | Hastelloy C276 or C22 equivalent nickel alloy flange |
| Porcelana | GB/T 9119 | NS3304 / NS334 equivalent project-grade nickel alloy flange |
Flujo del proceso de producción
SASA FLANGE controls each production stage from raw alloy verification to final marking. Process discipline is important for Hastelloy lap joint flanges because alloy chemistry, tratamiento térmico, machining accuracy and traceability directly affect corrosion performance and field installation reliability.
- 1. Selección de materia prima
- 2. Forja / Corte
- 3. Tratamiento térmico
- 4. Mecanizado en desbaste
- 5. Terminar el mecanizado
- 6. Perforación
- 7. Tratamiento superficial
- 8. Inspección
- 9. Calificación
- 10. Embalaje
- 11. Entrega
| Paso del proceso | Descripción | Punto de control de calidad |
|---|---|---|
| Materia prima | Select certified alloy forging billets or plates | Material certificate, PMI verification and traceability |
| Forja | Hot forging or profile cutting to achieve required flange blank | Forging temperature, reduction ratio and grain flow control |
| Tratamiento térmico | Solution annealing or annealing as required by alloy grade | Temperature uniformity, holding time and cooling method |
| Mecanizado | Sealing profile, aburrir, hub area, outside diameter and bolt holes | Precisión dimensional, concentricity and surface finish |
| Inspección | Inspección final antes del envío. | Dimensión, appearance, PMI, marking and document review |
Inspección del producto
1. Inspección de composición química
Chemical composition inspection is carried out to confirm that the supplied Hastelloy flange material matches the specified alloy grade such as C22 or C276. Test results are checked against the applicable ASTM or ASME standard limits for key elements including nickel, cromo, molibdeno, iron and tungsten to ensure corrosion resistance and material conformity.
2. Pruebas de propiedades mecánicas
Mechanical testing is performed in accordance with the applicable material specification to verify tensile strength, límite elástico, elongation and hardness of the nickel alloy material. These tests confirm that the flange blank or forged material has the required structural properties for pressure service, fabrication reliability and stable performance under demanding operating conditions.
3. Inspección dimensional
Dimensional inspection covers outside diameter, espesor, aburrir, círculo de pernos, diámetro del agujero del perno, number of holes and overall tolerance according to ASME, EN, DIN, Estándares JIS o GB. For lap joint flanges, special attention is given to fit-up with the mating stub end, smooth rotation during alignment and correct flange face geometry for site installation.
4. Pruebas PMI y pruebas hidrostáticas
PMI testing is available to verify alloy identity on each flange or batch using portable spectrometer or XRF equipment, helping avoid grade mix-up in critical service. Hydrostatic testing is generally applied to assembled piping or special flange components when specified. SASA FLANGE suministros EN 10204 3.1 certificado, inspection records and full traceability documentation with shipment.
Embalaje del producto
- ✓Embalaje de caja de madera: Adecuado para productos de alta presión y gran diámetro.
- ✓Embalaje de paletas con film retráctil: Adecuado para envíos por lotes y tamaños estándar
- ✓Recubrimiento de aceite antioxidante + Papel impermeable: Utilizado para la protección del transporte marítimo.
- ✓Bolsa de plástico individual + Caja de cartón: Utilizado para accesorios pequeños y productos roscados.
- ✓Borrar marcado: Calificación, tamaño, clase de presión, número de calor y número de pedido
Aplicaciones
Hastelloy lap joint flanges are selected for piping systems where severe corrosion resistance, reliable alignment and easier maintenance are required. Their loose flange construction is especially useful in alloy piping because it simplifies assembly and replacement while maintaining compatibility with corrosion-resistant stub ends in demanding industrial environments.
| Industria | Aplicaciones típicas | Por qué se utiliza este producto |
|---|---|---|
| Petróleo y gas | Sour service skids, offshore chemical injection lines, produced water systems | Resists aggressive media and allows easier flange alignment during maintenance |
| Procesamiento químico | Acid handling, chlorides service, solvent lines, reactor and transfer piping | Excellent resistance to oxidizing and reducing chemicals with flexible assembly |
| Generación de energía | FGD units, condensate treatment, emission control and chemical dosing systems | Withstands corrosive process streams and reduces downtime during replacement |
| Tratamiento de agua | Desalination chemical dosing, brine systems and corrosion-prone treatment units | Good resistance to chloride-containing environments and aggressive chemicals |
| Marino y Offshore | Seawater treatment, offshore utility lines, scrubber systems and platform piping | Suitable for harsh marine conditions and easier bolt-hole orientation on site |
¿Por qué elegir? SASA FLANGE?
- ✓Professional manufacturer of Lap Joint Flange for global industrial projects
- ✓Tamaño personalizado, clase de presión y calidad del material según dibujos
- ✓Soporte estándar completo: ASME, EN, DIN, JIS, ES, GOST y especificaciones del cliente.
- ✓Trazabilidad del material con control del número de calor y EN 10204 3.1 certificado de materiales
- ✓Análisis químico, pruebas mecanicas, Pruebas del PMI, inspección hidrostática y dimensional
- ✓Disponibilidad de stock para artículos estándar., plazo de entrega 3-7 días; producción personalizada 15-30 días
- ✓Embalaje de exportación para el mar, transporte aereo y terrestre
- ✓15+ años de experiencia suministrando 50+ países en todo el mundo
Preguntas frecuentes
q: What is a Hastelloy lap joint flange?
A: A Hastelloy lap joint flange is a loose backing flange used together with a lap joint stub end. The flange can rotate around the stub end, making bolt hole alignment easier during installation. In corrosive alloy piping systems, this design can reduce cost and simplify maintenance because only the wetted stub end needs to match the process fluid.
q: What materials are available for Hastelloy lap joint flanges?
A: SASA FLANGE can supply Hastelloy lap joint flanges in common nickel alloy grades including Hastelloy C22, Hastelloy C276, Hastelloy B2 and Hastelloy C2000. Material selection depends on the process medium, temperatura, corrosion mechanism and project specification. We can also discuss equivalent UNS grades and matching stub end materials for complete assembly supply.
q: ¿Qué clase de presión se admite??
A: We can supply Hastelloy lap joint flanges in ASME Class 150, 300, 600, 900, 1500 y 2500, as well as EN and other metric pressure ratings such as PN10 to PN100 depending on size and standard. Large diameter flanges can also be produced to ASME B16.47 or customer drawings for project-specific piping systems.
q: Poder SASA FLANGE suministrar tamaños personalizados?
A: Sí. SASA FLANGE can manufacture custom Hastelloy lap joint flanges based on project drawings or non-standard requirements. We support special drilling patterns, custom outside diameter, special bore, matching dimensions for stub ends, metric or inch standards, and tailored marking. Custom machining and documentation packages are available for EPC, OEM and maintenance buyers.
q: ¿Qué certificado se proporciona??
A: Hastelloy lap joint flanges can be supplied with EN 10204 3.1 certificado de materiales, certificado de prueba de molino, dimensional inspection report and PMI test results. Additional documentation can be arranged according to order requirements. Where specified, we also support third-party inspection, hardness or mechanical test records, heat number traceability and complete shipping marking for project control.
Contáctenos
If you are looking for hastelloy lap joint flanges or related custom flange products, por favor contacte SASA FLANGE con tu talla requerida, clase de presión, grado del material, estándar, tratamiento superficial, requisitos de cantidad e inspección. Nuestro equipo proporcionará soluciones técnicas profesionales y cotizaciones competitivas dentro de 24 horas.
- 📧 Correo electrónico: sales@sasaflange.com
- 📱 WhatsApp: +86 13764965049
- ☎️ Teléfono: +86 21 52236361
- 🌐 Sitio web: www.sasaflange.com
