Keterangan
Corrosion-resistant forged piping component
ASTM A182 F316L Weld Neck Flange
A low-carbon, molybdenum-bearing stainless steel weld neck flange engineered for full-penetration butt-welded joints in chemical, laut, energy and hygienic process piping.
What is an F316L weld neck flange?
Sebuah ASTM A182 Flensa leher las F316L is a forged austenitic stainless steel pipe flange with a tapered hub and a butt-weld end. The hub transfers stress gradually from the flange into the pipe, while the full-penetration weld provides a strong, inspectable joint for pressure and temperature cycling.
F316L is the low-carbon version of F316. Its maximum carbon content helps reduce the risk of sensitization during welding, while chromium, nickel and molybdenum provide better resistance to pitting and crevice corrosion than 304-series stainless steel in many process environments.
F316L weld neck flange specifications
| Produk | Flensa leher las yang ditempa / flensa WN / WNRF atau WNRTJ |
|---|---|
| materi ASTM | ASTM A182 F316L |
| Sebutan material | UNS S31603; umumnya direferensikan silang dengan EN 1.4404 / X2CrNiMo17-12-2 |
| Standar Amerika Utara | ASME B16.5 |
| pilihan Eropa | EN 1092-1 Jenis 11, dipasok ke material yang dipesan dan spesifikasi proyek |
| Ukuran nominalnya | ASME: NPS 1/2–24; EN: DN15–DN600; larger project sizes available subject to drawing review |
| Peringkat tekanan | Kelas ASME 150, 300, 400, 600, 900, 1500 Dan 2500 dalam batas ukuran standar; EN PN6–PN100 |
| Menghadapi | Wajah Terangkat (Federasi Rusia), Sambungan Tipe Cincin (RTJ), Wajah Datar (FF) atau penyelesaian khusus proyek |
| Membosankan / jadwal dinding | Dikerjakan agar sesuai dengan OD pipa dan jadwal dinding yang ditentukan, termasuk Sch 10S, 40S, 80S dan dinding yang lebih berat |
| Dokumen inspeksi | EN 10204 3.1 sertifikat materi, laporan dimensi, Laporan PMI dan pengujian tambahan sesuai pesanan |
Dimensi akhir, peringkat tekanan-suhu dan kriteria penerimaan material mengikuti standar yang dipesan, edisi dan spesifikasi proyek.
ASME B16.5 dan EN 1092-1 supply options
Untuk proyek Amerika Utara
Menentukan ASTM A182 F316L, ASME B16.5 ukuran dan kelas, jadwal pipa, tipe menghadap, surface finish and required inspection. Typical descriptions include “2 in Class 300 WNRF, bore for Sch 40S.”
Untuk proyek-proyek Eropa
Menentukan EN 1092-1 Jenis 11, Peringkat DN dan PN, menyegel wajah, pipe dimensions and the required European material designation, umumnya 1.4404 for 316L applications.
F316L vs F316 weld neck flange
| Titik seleksi | F316L | F316 |
|---|---|---|
| Carbon limit | Lower carbon, 0.030% maximum | Higher permitted carbon limit |
| Primary benefit | Reduced sensitization risk during welding | May provide slightly higher strength in some conditions |
| Typical choice | Welded process piping and corrosive service | Service selected by the governing design and material specification |
Aplikasi yang umum
| Industri | Layanan khas | Why F316L is selected |
|---|---|---|
| Pemrosesan kimia | Garis proses, sistem pelarut, koneksi reaktor | Corrosion resistance and reliable welded joints |
| Minyak, gas and refining | Utility piping, tergelincir, selected corrosive streams | Kekuatan, traceability and pressure-class availability |
| Marine and water treatment | Treatment equipment, desalination auxiliaries, koneksi pompa | Better chloride resistance than 304-series grades for suitable design conditions |
| Makanan dan farmasi | Clean utilities and process equipment connections | Cleanable stainless surface and low-carbon weldability |
| Power and industrial plants | Air pendingin, auxiliaries and process utility lines | Tapered-hub stress distribution and long service life |
Manufaktur, inspeksi dan dokumentasi
SASA FLANGE supplies F316L weld neck flanges with identification linked to the raw-material heat number. Rute produksi dapat mencakup penempaan, solusi perlakuan panas, pemesinan CNC, menghadap, pengeboran, pembersihan, pemeriksaan akhir dan pengepakan ekspor sesuai dengan pesanan pembelian.
ulasan MTC, kontrol angka panas dan PMI bila ditentukan.
DARI, ketebalan, pusat, membosankan, lingkaran baut, lubang dan menghadap.
PT, UT, kekerasan atau inspeksi pihak ketiga sesuai pesanan.
EN 10204 3.1 certificate and inspection records per PO.
Informasi diperlukan untuk kutipan cepat
- Standar dan edisi
- Kelas materi
- Ukuran nominalnya / hari
- Peringkat kelas atau PN
- Jadwal pipa / membosankan
- Menghadapi dan menyelesaikan permukaan
- Kuantitas
- Inspeksi dan sertifikasi
Pertanyaan yang sering diajukan
What is the material designation for an F316L weld neck flange?
Sebutan ASTM adalah ASTM A182 F316L and the UNS number is S31603. EN 1.4404 is commonly used for comparable European 316L applications, but the ordered standard and acceptance criteria should always be stated explicitly.
Which ASME sizes and pressure classes are available?
ASME B16.5 menutupi flensa leher las dari NPS 1/2 melalui NPS 24. Common ratings are Class 150, 300, 400, 600, 900 Dan 1500; Kelas 2500 berlaku dalam kisaran ukuran lebih kecil yang ditentukan oleh standar.
Can the flange bore match a specific pipe schedule?
Ya. The weld end and bore can be machined to match the ordered pipe outside diameter and wall schedule. Include the pipe specification and schedule in the RFQ to ensure correct weld preparation and alignment.
What is the difference between RF and RTJ facing?
A raised face uses a flat gasket contact area above the flange face. An RTJ flange has a precision-machined groove for a metallic ring gasket and is commonly specified for more severe pressure and temperature service. Flensa kawin, gasket and facing must be compatible.
Sertifikat mana yang dapat diberikan?
Dokumentasi umum mencakup EN 10204 3.1 sertifikat materi, laporan keterlacakan nomor panas dan inspeksi dimensi. PMI, PT, UT, hardness testing and third-party inspection can be arranged when included in the order requirements.
Request an F316L weld neck flange quotation
Kirim ukuran Anda, peringkat kelas atau PN, jadwal pipa, menghadap, quantity and documentation requirements. SASA FLANGE will review the specification and return a project-specific quotation.
