مورد أنابيب الفولاذ المقاوم للصدأ في المملكة العربية السعودية — TP304L / TP316L، مشاريع نيوم وأرامكو

Stainless steel pipes for Saudi Aramco process service are specified in grades 304L and 316L for corrosion resistance in chemical, utility water, and cooling-water systems. Gulf Union Ozone supplies ASTM A312 seamless and welded stainless steel pipe in grades 304/304L, 316/316L, 321, and 347 for petrochemical service. For produced-water and sour-gas applications at SAEP-347 Aramco facilities, duplex stainless steel pipe (UNS S31803 / S32205) is supplied to ASTM A790 with NACE MR0175 / ISO 15156 compliance documentation. Super duplex pipe (UNS S32750) for seawater injection and offshore riser service. All stainless steel pipe is supplied with EN 10204 3.1 MTCs, heat and batch number traceability, and spectroscopic material analysis (PMI test) certificates. Pipe sizes range from ½ inch NB to 24 inch NB; schedule selection (5S, 10S, 40S, 80S) per ASME B36.19 standard.

Stainless steel pipe selection for Saudi Aramco seawater service requires careful attention to chloride stress corrosion cracking (CSCC) risk — austenitic grades 304L and 316L are susceptible above 60°C in chloride environments. Gulf Union Ozone advises on grade selection per SAES-A-007 Saudi Aramco corrosion control standard: 316L for ambient-temperature seawater cooling; duplex 2205 or super duplex 2507 for elevated temperature seawater service above 50°C; titanium Grade 2 as the ultimate solution for SWCC multi-stage flash evaporator heat rejection piping. PREN (Pitting Resistance Equivalent Number) calculations for each stainless grade in the specific Aramco or SWCC process environment are provided on request. Saudi Aramco Engineering Standard SAES-L-140 governs stainless steel piping material selection for all plant piping above ½-inch NB.

Stainless steel pipe for food-grade, pharmaceutical, and NEOM resort infrastructure supply requires electropolished bore and surface finish (Ra ≤ 0.8 µm) with 3-A Sanitary Standard or ASME BPE certification. Gulf Union Ozone sources hygienic-grade stainless steel pipe and fittings for the growing Saudi food processing and pharmaceutical manufacturing base in Riyadh, Jeddah, and KAEC (King Abdullah Economic City). For desalination and water treatment — SWCC multi-stage flash plants, brackish water reverse osmosis facilities, and SEC boiler feedwater systems — stainless steel pipe is supplied in Grade 904L (UNS N08904) for high-chloride, high-temperature seawater service where duplex may not be suitable. Pipe end connections for welded stainless service are supplied as plain bevel-end per ASME B16.25 ready for orbital TIG welding at the installation site.

Gulf Union Ozone stainless steel pipe delivery covers Saudi Arabia from the Jeddah distribution centre: Jeddah same-day or next-day for stocked sizes in 304L and 316L; Jubail and Dammam 48–72 hours; Al Khobar 72 hours; Yanbu 72 hours; Riyadh 72–96 hours. EN 10204 3.1 mill test certificates with heat number traceability are issued for every stainless pipe delivery to Saudi Aramco facilities, supporting the SAEP-347 goods-receipt inspection requirement. Positive material identification (PMI) using X-ray fluorescence (XRF) analysers is available at the Jeddah warehouse for grade verification before despatch — critical for stainless and duplex pipe where grade substitution risk is higher than for carbon steel. Custom cut-to-length stainless pipe, orbital weld fitting, and electropolishing services are coordinated through approved Saudi fabricators within 2–5 working days lead time.