Beschreibung
Produktdetails
Hastelloy B2 long weld neck flanges are specialty forged alloy flanges featuring an extended tapered hub that provides improved stress distribution, stronger reinforcement at the nozzle connection and reliable performance in high-pressure or temperature-varying systems. This flange type is commonly selected for reactor nozzles, Druckbehälter, corrosive transfer lines and critical process piping in chemical, petrochemical and offshore applications where resistance to hydrochloric acid and other reducing media is required.
SASA FLANGE supplies Hastelloy B2 long weld neck flanges in standard and custom dimensions according to ASME, EN, DIN, JIS, GB or project drawings. Jede Bestellung kann durch eine chemische Analyse unterstützt werden, mechanische Prüfung, Maßprüfung, PMI-Tests, EN 10204 3.1 certificate and full heat number traceability to ensure compliance with demanding industrial procurement and EPC documentation requirements.
- ✓Produktname: Hastelloy B2 Long Weld Neck Flange
- ✓Materialqualität: ASTM B564 UNS N10665 / Hastelloy B2
- ✓Produkttyp: Forged nickel alloy long weld neck flange
- ✓Hauptmerkmal: Excellent corrosion resistance in reducing acid service with reinforced long hub design
- ✓Anwendungen: Chemische Verarbeitung, Umgang mit Säure, Druckbehälter, Offshore-Systeme, specialty piping
Produktparameter
| Produktname | Hastelloy B2 Long Weld Neck Flange |
| Materialqualität | ASTM B564 UNS N10665, Hastelloy B2 |
| Materialtyp | Nickel-Molybdenum Alloy |
| Produktform | Geschmiedet / machined long weld neck flange |
| Größenbereich | DN15 – DN1500 (1/2 Zoll – 60 Zoll) |
| Druckklasse | Klasse 150 – 2500 / PN10 – PN100 |
| Dichtfläche | RF, FF, RTJ, TG, MFM |
| Oberflächenbehandlung | Beizen, Passivierung, Bearbeitete Oberfläche, protective oil, custom preservation for export |
| Standard | ASME B16.5, ASME B16.47, EN 1092-1, DIN, JIS, GB oder Kundenspezifikation |
| Inspektion | Chemische Analyse, Mechanischer Test, PMI-Test, Dimensional, Hydrostatisch |
| Zertifikat | EN 10204 3.1 Materialzertifikat verfügbar |
| Bearbeitungsservice | Schneiden, CNC-Bearbeitung, Kundenspezifisches Bohren, Verarbeitung kundenspezifischer Größen |
Chemische Zusammensetzung
The following chemical composition is for reference for Hastelloy B2 forged material. Actual values may vary slightly by mill heat, product form and applicable specification. Final chemical composition shall comply with ASTM requirements and be confirmed by the material test certificate and project inspection documents supplied with the order.
| Element | C | Und | Mn | P | S | Cr | In | Mo | Andere |
|---|---|---|---|---|---|---|---|---|---|
| Inhalt % | 0.02 max | 0.10 max | 1.00 max | 0.04 max | 0.03 max | 1.00 max | Gleichgewicht | 26.0-30.0 | Fe 2.0 max, Co 1.0 max |
Mechanische Eigenschaften
Mechanical properties shown below are typical reference values for Hastelloy B2 and project-specified equivalent forged alloy grades. Actual results may vary according to heat treatment condition, section thickness and manufacturing route. Final acceptance values should be based on the applicable ASTM material standard, purchase specification and certified test reports.
| Grad | Zugfestigkeit | Streckgrenze | Verlängerung | Härte | Dichte |
|---|---|---|---|---|---|
| Hastelloy B2 / UNS N10665 | 760 MPa | 350 MPa | 40% min | 100 HRB max | 9.24 g/cm3 |
| Alloy B2 Forged Condition | 750 MPa | 340 MPa | 40% min | 100 HRB max | 9.24 g/cm3 |
Gemeinsame Größentabelle
| Größenbereich | Druckklasse | Dichtfläche | Material | Verfügbarkeit |
|---|---|---|---|---|
| DN15 – DN50 | Klasse 150 – 600 | RF | Hastelloy B2 / UNS N10665 | Aktie / Produktion |
| DN65 – DN300 | Klasse 150 – 1500 | RF / RTJ | Hastelloy B2 / UNS N10665 | Aktie / Produktion |
| DN350 – DN600 | Klasse 150 – 2500 | RF / RTJ | Hastelloy B2 / UNS N10665 | Produktion |
| DN700 – DN1500 | Klasse 150 – 900 | RF | Hastelloy B2 / UNS N10665 | Auf Bestellung gefertigt |
Vergleich verschiedener Spezifikationen
| Typ | Beschreibung | Typische Verwendung |
|---|---|---|
| ASME Long Weld Neck Flange | Extended hub flange machined to ASME dimensions with butt weld end for vessel or nozzle transition | Druckbehälter, high-stress nozzles, Prozessleitungen |
| RTJ Long Weld Neck Flange | Long weld neck flange with ring type joint groove for high-pressure sealing service | High-pressure chemical lines, reactor connections, refinery units |
| RF Long Weld Neck Flange | Raised face version suitable for standard gasketed joints and corrosive process systems | General corrosive service, pump and equipment connections |
| Custom Forged Long Weld Neck Flange | Project-made flange produced to vessel neck dimensions, wall thickness and drilling pattern | EPC projects, pressure vessel fabrication, custom skids |
Äquivalente Standards und internationale Namen
Long weld neck flange dimensional standards differ by region, while the alloy grade is normally specified by ASTM or UNS designation for international procurement. Hastelloy B2 is commonly ordered as UNS N10665 forged material and manufactured to the required flange standard, drilling pattern and facing type according to project documentation.
| Standard / Region | Standardcode | Typische Note / Äquivalent |
|---|---|---|
| USA | ASME B16.5 | ASTM B564 UNS N10665 / Hastelloy B2 |
| Europa | EN 1092-1 | UNS N10665 nickel alloy to project specification |
| Deutschland | DIN 2527 / 2566 | Hastelloy B2 equivalent alloy by drawing or material callout |
| Japan | JIS B2220 | UNS N10665 forged nickel alloy flange |
| China | GB/T 9119 | NS3202 / UNS N10665 project equivalent |
Ablauf des Produktionsprozesses
SASA FLANGE controls each manufacturing stage from raw material verification to final packing to ensure dimensional accuracy, alloy integrity and complete traceability for Hastelloy B2 long weld neck flanges used in demanding corrosive service.
- 1. Rohstoffauswahl
- 2. Schmieden / Schneiden
- 3. Wärmebehandlung
- 4. Grobbearbeitung
- 5. Fertigbearbeitung
- 6. Bohren
- 7. Oberflächenbehandlung
- 8. Inspektion
- 9. Markierung
- 10. Verpackung
- 11. Lieferung
| Prozessschritt | Beschreibung | Qualitätskontrollpunkt |
|---|---|---|
| Rohstoff | Wählen Sie zertifizierte Schmiedeknüppel oder -platten | Materialzertifikat und Rückverfolgbarkeit |
| Schmieden | Warmschmieden, um die gewünschte Form zu erreichen | Schmiedetemperatur und Reduktionsverhältnis |
| Wärmebehandlung | Solution annealing and controlled cooling for nickel alloy stability | Temperatur- und Haltezeitkontrolle |
| Bearbeitung | Dichtfläche, Schraubenlöcher, Abmessungen | Maßhaltigkeit und Oberflächengüte |
| Inspektion | Endkontrolle vor dem Versand | Dimension, Oberfläche, PMI, hydrostatisch |
Produktinspektion
1. Inspektion der chemischen Zusammensetzung
Chemical composition inspection is carried out on the Hastelloy B2 raw material and, wo erforderlich, on the finished flange to verify compliance with UNS N10665 Anforderungen. Key elements such as nickel, Molybdän, Chrom, iron and carbon are checked against ASTM limits. This process helps confirm corrosion-resistant performance and prevents off-grade alloy substitution in critical project supply.
2. Prüfung der mechanischen Eigenschaften
Mechanical properties testing verifies that forged Hastelloy B2 material achieves the specified tensile strength, Streckgrenze, elongation and hardness after heat treatment. Test samples are reviewed according to relevant ASTM requirements or project specifications. These tests confirm the flange has sufficient structural integrity for pressure-retaining service, welded assemblies and demanding nozzle or vessel connections.
3. Maßprüfung
Die Maßprüfung erstreckt sich auf den Außendurchmesser, langweilig, Nabenlänge, long neck profile, Dicke, Lochkreis, bolt hole diameter and facing geometry. Raised face or RTJ groove dimensions are checked carefully to ensure gasket compatibility and correct assembly. This inspection is especially important for long weld neck flanges used on vessels and equipment where transition dimensions must match design drawings precisely.
4. PMI-Tests und hydrostatische Tests
PMI testing is performed using portable analyzers to confirm the alloy identity of Hastelloy B2 before shipment. When specified, hydrostatic or assembly pressure testing is arranged to verify pressure integrity in finished systems or special fabricated components. SASA FLANGE bieten kann EN 10204 3.1 Zertifikat, material test reports, inspection records and traceable heat numbers with the delivered flanges.
Produktverpackung
- ✓Holzkistenverpackung: Geeignet für Produkte mit hohem Druck und großem Durchmesser
- ✓Palettenverpackung mit Schrumpffolie: Geeignet für Sammelsendungen und Standardgrößen
- ✓Anti-Rost-Ölbeschichtung + Wasserfestes Papier: Wird zum Schutz von Seefracht verwendet
- ✓Einzelne Plastiktüte + Karton: Wird für kleine Fittings und Gewindeprodukte verwendet
- ✓Klare Markierung: Grad, Größe, Druckklasse, Laufnummer und Bestellnummer
Anwendungen
Hastelloy B2 long weld neck flanges are selected for corrosive process systems where excellent resistance to reducing acids and reliable structural reinforcement are required. Their long tapered hub makes them suitable for critical nozzle and vessel connections in industries that demand alloy integrity, dimensional precision and documented traceability.
| Industrie | Typische Anwendungen | Warum dieses Produkt verwendet wird |
|---|---|---|
| Öl und Gas | Acid injection systems, specialty chemical lines, offshore process modules | Provides corrosion resistance in aggressive media and strong reinforcement for critical welded connections |
| Chemische Verarbeitung | Hydrochloric acid service, Reaktoren, Verdampfer, storage and transfer piping | Hastelloy B2 offers excellent resistance to reducing environments and low carbon content supports weldability |
| Stromerzeugung | FGD auxiliary systems, chemical dosing skids, specialty boiler island services | Used where alloy durability and pressure boundary reliability are needed in corrosive auxiliary systems |
| Wasseraufbereitung | Chemical dosing plants, acid regeneration units, demineralization support systems | Suitable for severe chemical handling duties where standard stainless steel may not perform adequately |
| Marine und Offshore | Offshore chemical injection, topside process piping, FPSO specialty service lines | Combines corrosion-resistant alloy performance with long neck geometry for robust nozzle and piping transitions |
Warum wählen? SASA FLANGE?
- ✓Professional manufacturer of Long Weld Neck Flange for global industrial projects
- ✓Maßgeschneiderte Größe, Druckklasse und Materialgüte gemäß Zeichnung
- ✓Vollständige Standardunterstützung: ASME, EN, DIN, JIS, GB, GOST- und Kundenspezifikationen
- ✓Materialrückverfolgbarkeit mit Schmelzenzahlkontrolle und EN 10204 3.1 Materialzertifikat
- ✓Chemische Analyse, mechanische Prüfung, PMI-Tests, Hydrostatische und Dimensionsprüfung
- ✓Lagerverfügbarkeit für Standardartikel, Vorlaufzeit 3-7 Tage; Sonderanfertigung 15-30 Tage
- ✓Exportverpackung für den Seeverkehr, Luft- und Landtransport
- ✓15+ Jahre Erfahrung in der Lieferung 50+ Länder weltweit
FAQ
Q: What is a Hastelloy B2 long weld neck flange?
A: A Hastelloy B2 long weld neck flange is a forged nickel-molybdenum alloy flange with an extended tapered hub designed for high-stress welded connections. It is commonly used on pressure vessels, Spalten, reactors and critical piping systems. The long neck improves stress distribution and makes it suitable for corrosive service involving reducing acids and demanding process conditions.
Q: What materials are available for Hastelloy B2 long weld neck flanges?
A: Das Hauptmaterial ist ASTM B564 UNS N10665, commonly known as Hastelloy B2. For project requirements, SASA FLANGE can also discuss equivalent nickel alloy grades or related corrosion-resistant forged materials based on application conditions, design code and client drawings. Die Materialauswahl hängt von der Prozesschemie ab, Temperatur, pressure and required certification for the final installation.
Q: Welche Druckklasse wird unterstützt??
A: SASA FLANGE can supply Hastelloy B2 long weld neck flanges in ASME Class 150, 300, 600, 900, 1500 Und 2500, with EN and other regional ratings produced to project requirements. The available class depends on size, design thickness, facing type and forging feasibility. Higher pressure ratings are commonly manufactured as custom items according to approved drawings.
Q: Kann SASA FLANGE liefern kundenspezifische Größen?
A: Ja. SASA FLANGE supplies custom long weld neck flanges according to client drawings, vessel nozzle dimensions and project standards. We can manufacture non-standard neck lengths, Sonderbohrungen, custom drilling patterns, RTJ or raised face details, special hub transitions and tailored material grades. This is particularly useful for EPC projects, pressure vessels and replacement parts with exact fit requirements.
Q: Welches Zertifikat wird bereitgestellt??
A: SASA FLANGE bietet EN 10204 3.1 material certificate with heat number traceability for Hastelloy B2 long weld neck flanges. Supporting documentation can include chemical analysis, mechanische Testergebnisse, dimensional inspection records and PMI reports. Hydrostatic testing or additional third-party inspection can also be arranged when specified by the purchase order, contract documents or project quality plan.
Kontaktieren Sie uns
If you are looking for hastelloy b2 flanges or related custom flange products, Bitte kontaktieren Sie uns SASA FLANGE mit Ihrer gewünschten Größe, Druckklasse, Materialqualität, Standard, Oberflächenbehandlung, Mengen- und Prüfanforderungen. Unser Team bietet professionelle technische Lösungen und wettbewerbsfähige Angebote 24 Std..
- 📧 E-Mail: sales@sasaflange.com
- 📱 WhatsApp: +86 13764965049
- ☎️Tel: +86 21 52236361
- 🌐 Website: www.sasaflange.com
