ما هي درجات أنابيب الفولاذ الكربوني المتوافقة مع SAEP-347؟
يغطي SAEP-347 الملحق 4 ASTM A106 Grade B (أرقام المواد A-025 وA-026)، وAPI 5L Grade B PSL 1 (A-028)، وAPI 5L X52 PSL 2 (A-031)، وAPI 5L X65 PSL 2 (A-034) من أكثر درجات الأنابيب شيوعاً. تخزّن اتحاد الخليج أوزون A106 Gr.B وAPI 5L Gr.B من مخزون جدة. أدرج رقم المادة SAEP-347 في طلب عرض السعر للحصول على تأكيد سريع.
In Summary
Carbon steel pipes are the highest-volume piping material at Saudi Aramco and SABIC facilities — used for process, utility, firewater, and cooling-water systems. Gulf Union Ozone supplies ASTM A106 Grade B seamless pipe for process service, ASTM A53 Grade B ERW and seamless for utility service, and API 5L Grade B, X42, X52, X60, and X65 for oil and gas transmission pipelines. All pipe is supplied with mill test certificates per EN 10204 2.1 as standard; EN 10204 3.1 is available on request for Saudi Aramco Goods Receipt compliance. SAEP-347 Annex 4 specifies material numbers for carbon steel piping components — Gulf Union Ozone cross-references SAEP-347 material numbers on all pipe supply quotations to simplify Aramco Material Requisition (MR) documentation. Pipe is held in Schedules 40, 80, 160, and XXS across the full NPS range from ½ inch to 24 inches in diameter.
ما الفرق بين أنابيب ASTM A106 وAPI 5L؟
ASTM A106 covers seamless carbon steel pipe specifically for high-temperature service in process piping applications — refineries, petrochemical plants, and utility systems. It is manufactured only as seamless pipe and has fixed Grade B chemistry and properties. API 5L is a line pipe standard designed for oil and gas gathering and transmission. It comes in higher-strength grades (X42 through X80) and can be seamless (SMLS) or longitudinally welded (SAW/ERW). For Aramco process piping, A106 Gr.B is the standard selection; for gathering lines and pipelines, API 5L is specified. See our API 5L vs ASTM A106 comparison guide for a full breakdown.
In Summary
Carbon steel pipe for Saudi Aramco sour-service applications must comply with NACE MR0175 / ISO 15156 — standard ASTM A106 Gr B is acceptable for sweet crude oil service but requires additional hardness testing for H₂S-containing process streams. Gulf Union Ozone supplies pipe with Vickers hardness certificates (maximum HV250 per NACE MR0175) for sour-gas headers and produced-water piping at GOSPs. Heat treatment — normalised or quench-and-tempered — is documented on the EN 10204 3.1 mill test certificate. For offshore Saudi Aramco platforms on SAEP-347 Annex 4 service lists, pipe with dual certification (A106/A53) and positive material identification (PMI) testing is available. Carbon steel seamless pipe for high-temperature service (above 400°C) is supplied as A335 alloy steel grade P11 or P22 for reformer and fired-heater piping applications in Jubail and Yanbu refineries.
هل تورّدون أنابيب الفولاذ الكربوني مع شهادات اختبار المواد EN 10204 3.1؟
Yes. All carbon steel pipe from Gulf Union Ozone is supplied with EN 10204 3.1 mill test certificates as standard. The 3.1 MTC includes chemical analysis, mechanical properties (tensile strength, yield strength, elongation), and the mill inspector's signature — the minimum documentation requirement for Saudi Aramco material procurement. EN 10204 3.2 (TPI-witnessed) certificates can be arranged on project order with advance notice. For full details on certificate types, see our EN 10204 3.1 mill test certificate guide.
In Summary
Pipe fitting and pipe procurement at Saudi Aramco sites follows a two-stage documentation process: Material Requisition from the project engineering team followed by Goods Receipt inspection at the plant gate. Gulf Union Ozone supports both stages — issuing material take-off tabulations for contractor MR submission, and providing EN 10204 3.1 MTCs, dimensional inspection records, and third-party inspection (TPI) certificates from SGS, Bureau Veritas, or Lloyd's Register for Goods Receipt compliance. Carbon steel pipe delivered to Aramco-operated facilities in Jubail, Dhahran, and Yanbu requires the Aramco Vendor Number (9COM) to appear on delivery documentation. Gulf Union Ozone holds a valid Saudi Aramco vendor number. All carbon steel pipe is traceable to heat number, cast number, and batch record — compliant with SAEP-347 material traceability requirements for piping component procurement.
