Keterangan
Fitting pipa las butt buatan pabrik
ASTM A815 S32750 Super Dupleks 2507 Tutup Ujung Pipa
Paduan tinggi, high-strength butt-weld closure engineered for demanding seawater, offshore and chloride-bearing process systems.
Apa itu ASTM A815 S32750 Super Dupleks 2507 tutup pipa?
Sebuah ASTM A815 S32750 pipe end cap is a wrought super duplex stainless steel butt-welding fitting used to terminate a pipeline in highly corrosive service. UNS S32750 combines high chromium, molybdenum and nitrogen with a duplex microstructure to provide higher localized corrosion resistance than standard Duplex 2205 in many chloride environments.
Super duplex performance depends on correct material identity, solusi perlakuan panas, phase balance and qualified fabrication. Suhu layanan, kadar klorida, oksigen, mengalir, crevices and chemical contaminants must be reviewed by the piping materials engineer rather than relying on alloy name alone.
S32750 Super Dupleks 2507 cap specifications
| Jenis produk | Super duplex stainless steel butt weld pipe end cap |
|---|---|
| Spesifikasi bahan | ASTM A815, ordered grade designation with UNS S32750 |
| Penunjukan bahan | UNS S32750 / Super Dupleks 2507; umumnya direferensikan silang dengan EN 1.4410 |
| Standar dimensi | ASME B16.9 |
| Ukuran nominalnya | NPS 1/2–48 / DN15–DN1200, tergantung pada dinding dan rute produksi |
| Ketebalan dinding | Standard schedules and custom walls subject to technical review |
| Konstruksi | Mulus atau dilas sebagaimana berlaku dan dipesan |
| Perawatan panas | Solution heat treated in accordance with the ordered specification |
| Akhiri persiapan | Butt-weld bevel matched to pipe wall and qualified welding procedure |
| Dokumentasi | EN 10204 3.1 MTC, PMI, catatan perlakuan panas, ferrite/corrosion tests when ordered |
Dimensi dan toleransi mengikuti standar dan edisi yang dipesan. Kesesuaian tekanan-suhu akhir ditentukan oleh kode desain perpipaan, bahan, ketebalan dinding, kesesuaian pipa dan kondisi servis.
Persyaratan proyek ASME dan Eropa
Proyek Amerika Utara
Menentukan ASTM A815 with the complete grade designation and UNS S32750, ASME B16.9, ukuran, dinding, konstruksi, perlakuan panas, NDE and any ferrite or ASTM G48-type project testing.
proyek-proyek Eropa
Tentukan EN 1.4410 jika diperlukan, hari, ketebalan dinding, standar dimensi, jenis sertifikat, PED-related requirements and project acceptance criteria for phase balance and corrosion testing.
Super Dupleks 2507 vs Duplex 2205 tutup pipa
| Titik seleksi | S32750 Super Dupleks 2507 | S32205 Dupleks 2205 |
|---|---|---|
| Tingkat paduan | Higher Cr-Mo-N alloy content | Lower alloy content than 2507 |
| Localized corrosion | Higher resistance in many severe chloride environments | Strong performance for moderately severe chloride service |
| Layanan khas | Air laut, offshore topsides and aggressive chemical duties | Air yang diproduksi, desalination pretreatment and general process duties |
| Procurement | More demanding fabrication, testing and cost | Broader economical duplex selection |
Aplikasi yang umum
| Industri | Layanan khas | Alasan pemilihan |
|---|---|---|
| Produksi lepas pantai | Injeksi air laut, firewater and chloride-rich process lines | High localized-corrosion resistance and strength |
| Desalinasi | High-chloride seawater and concentrate systems | Greater pitting and crevice-corrosion margin than 2205 in many conditions |
| Pemrosesan kimia | Aggressive acids and chloride-containing streams | High-alloy duplex corrosion performance |
| Teknik kelautan | Critical seawater utilities and equipment connections | Durable severe-service welded closure |
Contoh penerapan hanya sebagai panduan saja. Insinyur proyek harus memastikan kompatibilitas material, tunjangan korosi, persyaratan dampak dan kepatuhan kode desain.
Manufaktur, inspeksi dan dokumentasi
Super duplex caps require controlled forming, solution heat treatment and careful weld processing where applicable. Critical orders commonly define PMI, ferit, kekerasan, pengujian korosi, mati suri, heat-treatment records and third-party witnessing.
PMI and traceability can verify S32750 throughout production.
Heat treatment and ferrite acceptance follow the ordered project specification.
Project-specified test method, temperature and acceptance criterion must be stated.
MTC, perlakuan panas, NDE and inspection records compiled into the data book as ordered.
Daftar periksa RFQ
- Kelas material dan spesifikasi produk
- Standar dimensi dan edisi
- Ukuran NPS atau DN
- Jadwal pipa atau ketebalan dinding yang tepat
- Konstruksi mulus atau dilas, bila diperlukan
- Persiapan akhir dan detail bevel
- Jumlah dan tujuan pengiriman
- MTC, Persyaratan inspeksi NDE dan pihak ketiga
Pertanyaan yang sering diajukan
What is the difference between S32750 and S32205?
S32750 is a higher-alloy super duplex grade with greater localized-corrosion resistance in many severe chloride environments. It is generally more demanding and more costly to manufacture.
Is Super Duplex 2507 suitable for all seawater temperatures?
TIDAK. Alloy selection still depends on temperature, konsentrasi klorida, oksigen, kecepatan, celah-celah, biofouling and design life. The project materials engineer must confirm suitability.
Why is solution heat treatment important?
It helps establish the intended duplex phase balance and dissolve detrimental phases that could reduce toughness or corrosion resistance.
Can corrosion testing be supplied?
Ya, when the test standard, larutan, suhu, exposure time, specimen location and acceptance criteria are defined in the order.
Which details are essential for quotation?
Provide the complete ASTM A815 nilai, UNS S32750, ukuran, dinding, konstruksi, perlakuan panas, mati suri, ferit, corrosion testing and certification requirements.
Minta Super Dupleks 2507 cap quotation
Send the material designation, ukuran, dinding, quantity and complete severe-service inspection specification for review.
