تجهيزات الأنابيب والفلنجات والأنابيب من دوبلكس 2205 (UNS S31803) وسوبر دوبلكس 2507 (UNS S32750) من مستودع جدة. متوافق مع NACE MR0175. شهادات اختبار كاملة مع كل طلب. درجات ذات صلة بـ SAES-L-133 متاحة.
| الخاصية | دوبلكس 2205 | سوبر دوبلكس 2507 |
|---|---|---|
| رقم UNS | S31803 / S32205 | S32750 |
| الاسم الشائع | Duplex 2205 | Super Duplex 2507 |
| الكروم | 21–23% | 24–26% |
| النيكل | 4.5–6.5% | 6–8% |
| الموليبدينوم | 2.5–3.5% | 3.0–5.0% |
| PREN (الحد الأدنى) | ≥35 | ≥41 |
| قوة الخضوع (الحد الأدنى) | 450 MPa (65 ksi) | 550 MPa (80 ksi) |
| قوة الشد (الحد الأدنى) | 620 MPa (90 ksi) | 800 MPa (116 ksi) |
| درجة حرارة الخدمة القصوى | 250°C (482°F) | 250°C (482°F) |
| NACE MR0175 | نعم (الخدمة الحامضة) | نعم (الخدمة الحامضة) |
| التطبيق الرئيسي | العمليات الكيميائية، البحرية، مياه البحر | حقن مياه البحر، المياه المنتجة، بيئات كلوريد عالية |
| ASTM المنطبق | A182 F51, A240, A790 | A182 F53, A240, A790 |
| معيار أرامكو | SAES-L-133 | SAES-L-133 |
الفولاذ الدوبلكس للخدمة البحرية والصناعية الحامضة
Elbows (45° & 90°), equal tees, reducing tees, reducers (concentric & eccentric), caps. ASME B16.9. Available in Schedule 10S to Schedule 80S.
Weld neck, slip-on, socket weld, blind, and lap joint flanges. ASME B16.5 Class 150 through Class 2500. ASME B16.47 large diameter available.
Seamless and welded pipe in NPS ½" to NPS 12" standard sizes. ASTM A790 / A928. Available in annealed and pickled condition.
Ball valves, gate valves, globe valves in duplex and super duplex body material for sour service and high-chloride applications.
Threaded elbows, tees, couplings, nipples in duplex 2205. NPT and BSP threads. ASME B16.11 socket weld fittings also available.
Round bar (ASTM A276 S31803/S32750), plate and sheet (ASTM A240) for fabrication. Mill-cut to specification on request.
Saudi Arabia's industrial environment — characterized by high ambient temperatures, seawater exposure along the Gulf and Red Sea coasts, and H2S-containing hydrocarbon streams — creates demanding conditions for standard stainless steels. Duplex and super duplex grades solve specific corrosion problems that standard 316L stainless cannot handle reliably.
SAES-L-133 (Corrosion-Resistant Alloy Piping) governs the selection and application of duplex stainless steel in Saudi Aramco facilities. Key requirements include:
Duplex stainless steel for Saudi Aramco seawater injection systems must satisfy SAES-A-007 (corrosion control — specifies 22% Cr duplex for seawater service above 50°C) and NACE MR0175 / ISO 15156 for sour-service produced-water piping. Gulf Union Ozone supplies duplex 2205 (UNS S31803) and super duplex 2507 (UNS S32750) pipe, fittings, flanges, and valves with PREN (Pitting Resistance Equivalent Number) certification — PREN 35+ for 2205 and PREN 42+ for 2507 — confirming resistance to pitting corrosion in the chloride concentrations and temperatures encountered at Saudi Arabian coastal and offshore production facilities. Duplex material hardness testing (maximum HV310 per NACE MR0175) and ferrite content measurement (40–60% ferrite for balanced microstructure) are documented on EN 10204 3.1 mill test certificates supplied with every duplex delivery.
أخبرنا بالدرجة (2205 أو 2507) وشكل المنتج (تجهيزات أو فلنجات أو أنابيب) والحجم والجدول/التصنيف والكمية. سنؤكد توفر المخزون والتسعير خلال 4 ساعات عمل.
Gulf Union Ozone duplex stainless steel supply delivers to all Saudi industrial zones from the Jeddah distribution centre: duplex 2205 pipe, bar, and fittings in standard NPS sizes are held in bonded stock for 48–72 hours delivery to Jubail and Dammam, 72 hours to Yanbu and Al Khobar, and 72–96 hours to Riyadh. Super duplex 2507 and Zeron 100 material is sourced with 4–8 weeks lead time from approved Swedish and European mills. Every duplex delivery includes: EN 10204 3.1 mill test certificate (chemical composition, mechanical properties, ferrite content, corrosion test per ASTM A923); NACE MR0175 compliance statement; positive material identification (PMI) XRF certificate where required by Saudi Aramco GI-0002.100; and heat traceability records. Third-party inspection at the mill by TÜV Rheinland or Bureau Veritas is available for Saudi Aramco mandatory TPI requirements.
Duplex stainless steel pipeline systems for NEOM Sindalah Island and Red Sea Project coastal resort infrastructure are specified for seawater cooling, brine discharge, and desalination distribution networks where conventional carbon steel piping would corrode in the aggressive coastal chloride environment. Gulf Union Ozone is positioned to supply duplex 2205 pipe, fittings, flanges, and valves for NEOM EPC contractors currently in procurement — offering Saudi-registered local supply with 9COM Aramco vendor number, IKTVA local content documentation, and EN 10204 3.1 traceability required by NEOM's tier-1 EPC quality requirements. Super duplex 2507 for high-chloride brine discharge piping at NEOM Oxagon industrial port desalination, where seawater concentration can reach 70,000 ppm TDS. Zeron 100 (UNS S32760) for crevice-corrosion-resistant flange gaskets and valve seats in concentrated brine service. Gulf Union Ozone supports NEOM EPC material requisitions from Jeddah, with HQ proximity enabling same-day collection and technical support calls.