Описание
Factory-made butt-welding pipe fitting
ASTM A815 S32205 Дуплекс 2205 Концевая заглушка трубы
A high-strength duplex stainless steel butt-weld closure for offshore, опреснение, химический, marine and pulp-and-paper piping.
What is an ASTM A815 S32205 Дуплекс 2205 pipe cap?
Ан ASTM A815 S32205 pipe end cap is a wrought duplex stainless steel butt-welding fitting used to terminate a pipe or header. Its ferritic-austenitic microstructure gives Duplex 2205 a combination of strength and corrosion resistance that can outperform conventional austenitic stainless steels in suitable chloride-bearing services.
Correct solution heat treatment and controlled fabrication are essential to the intended duplex phase balance and corrosion performance. Purchase specifications should define the exact ASTM A815 grade designation, номер УНС, термическая обработка, testing and any project-specific ferrite or corrosion-test acceptance criteria.
S32205 Дуплекс 2205 cap specifications
| Тип продукта | Duplex stainless steel butt weld pipe end cap |
|---|---|
| Спецификация материала | ASTM A815, ordered grade designation with UNS S32205 |
| Обозначение материала | UNS S32205 / Дуплекс 2205; commonly cross-referenced with EN 1.4462 |
| Стандарт размеров | ASME B16.9 |
| Номинальный размер | NPS 1/2–48 / DN15–DN1200, subject to wall and manufacturing route |
| Толщина стенки | Standard schedules and custom walls subject to forming and heat-treatment review |
| Строительство | Seamless or welded as applicable and ordered |
| Термическая обработка | Solution heat treated in accordance with the ordered material specification |
| Завершение подготовки | Butt-weld bevel to the matching pipe and welding specification |
| Документация | EN 10204 3.1 МТС, PMI, heat-treatment record and additional testing as ordered |
Dimensions and tolerances follow the ordered standard and edition. Final pressure-temperature suitability is determined by the piping design code, материал, толщина стенки, matching pipe and service conditions.
ASME and European project requirements
North American projects
Указать ASTM A815 with the complete grade designation and UNS S32205, ASME B16.9, НПС, настенное расписание, строительство, supplementary tests and required solution heat-treatment records.
European projects
Specify EN 1.4462 где это необходимо, together with DN, толщина стенки, стандарт размеров, inspection certificate, regulatory requirements and any corrosion or ferrite testing.
Дуплекс 2205 vs 316L pipe end cap
| Точка выбора | S32205 Дуплекс 2205 | WP316L / S31603 |
|---|---|---|
| Structure | Duplex ferritic-austenitic | Аустенитный |
| Сила | Higher typical yield strength | Lower typical yield strength but broad fabrication familiarity |
| Chloride behavior | Improved SCC and localized corrosion resistance in many services | Good general resistance; limitations increase with severe chloride exposure |
| Контроль производства | Tighter heat-input and phase-balance control | Established austenitic stainless welding practice |
Типичные применения
| Промышленность | Типичный сервис | Selection reason |
|---|---|---|
| Морская нефть и газ | Пластовая вода, utilities and process headers | Strength and chloride resistance |
| Опреснение | Pretreatment, brackish water and selected seawater systems | Resistance to localized corrosion when correctly specified |
| Химическая обработка | Chloride-bearing and corrosive process lines | Balanced strength and corrosion performance |
| Целлюлоза и бумага | Bleaching and chemical-recovery support systems | Useful resistance in selected chloride and chemical environments |
Application examples are guidance only. The project engineer must confirm material compatibility, допуск на коррозию, impact requirements and design-code compliance.
Производство, осмотр и документация
Duplex fittings require disciplined forming, welding where applicable and solution heat treatment. PMI, heat-treatment records, ferrite testing and corrosion testing can be incorporated into the inspection plan when the project specification requires them.
PMI and heat-number traceability confirm the ordered UNS designation.
Solution heat-treatment cycle and records reviewed against ASTM A815 требования.
Ferrite, твердость, corrosion or NDE testing performed when specified.
Размер, стена, длина, ovality and bevel verified before export packing.
Контрольный список запросов предложений
- Material grade and product specification
- Размерный стандарт и издание
- NPS or DN size
- Pipe schedule or exact wall thickness
- Бесшовная или сварная конструкция., когда это необходимо
- End preparation and bevel detail
- Quantity and delivery destination
- МТС, Требования к неразрушающему контролю и проверке третьей стороной
Часто задаваемые вопросы
Is S32205 the same as Duplex 2205?
UNS S32205 is a widely specified Duplex 2205 composition with defined chemistry controls. The full ordered material standard and grade designation remain authoritative.
Why choose Duplex 2205 instead of 316L?
Дуплекс 2205 offers higher strength and improved resistance to chloride stress-corrosion cracking and localized corrosion in many services, but it also needs tighter welding and heat-treatment control.
Is a ferrite test required?
It is not automatically required for every order in the same way. If the project has a ferrite acceptance range or test method, include it in the purchase specification.
Can S32205 caps be welded to duplex pipe?
Да, when the pipe, присадочный металл, процедура сварки, heat input and interpass temperature are properly specified and qualified by the fabricator.
What should be included in the RFQ?
Include ASTM A815 оценка, UNS S32205, ASME B16.9, размер, стена, строительство, термическая обработка, ОСП, ferrite or corrosion tests and certification requirements.
Запросить дуплекс 2205 pipe cap quotation
Share the full grade designation, размер, стена, quantity and duplex inspection plan for a technically matched offer.
