Pipe Fittings — Saudi Arabia

Pipe Fittings Supplier Saudi Arabia — 36 SAEP-347 Material Numbers

Gulf Union Ozone Trading Co. is a Saudi-stocked pipe fittings supplier serving Aramco contractors, EPC firms, and industrial projects across the Kingdom of Saudi Arabia. Our inventory covers butt weld fittings, socket weld fittings, threaded fittings, and stub ends — 36 of the 59 SAEP-347 Annex 4 material numbers relate to pipe fittings and piping, making this our largest product category. Full MTCs and CoCs supplied with every shipment. Same-day dispatch from Jeddah for in-stock items.

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SAEP-347 compatible pipe fittings — elbows, tees, reducers in stock Saudi Arabia — Gulf Union Ozone
Fitting Categories

What Pipe Fitting Types Are Available from Stock?

All fitting types are stocked in carbon steel, stainless steel, and alloy steel, manufactured to ASME standards, and supplied with full mill traceability documentation.

Type 01

Butt Weld Fittings

Manufactured to ASME B16.9 in carbon steel (ASTM A234 WPB), stainless steel (ASTM A403 WP304/316), and alloy steel (ASTM A234 WP11/WP22). Types stocked: 45° and 90° long-radius (LR) and short-radius (SR) elbows, equal and reducing tees, concentric and eccentric reducers, and caps. Available in Schedule 40, 80, 160, and XXS wall thickness. Size range ½" NPS to 24" NPS. All items supplied with EN10204 3.1 MTCs from the originating mill. For detailed specifications, see our carbon steel butt-weld fittings page.

■ SAEP-347
Type 02

Socket Weld Fittings

Manufactured to ASME B16.11 in forged carbon steel (ASTM A105) and forged stainless steel (ASTM A182 F304 / F316). Pressure classes: 3000#, 6000#, and 9000#. Types stocked: 45° and 90° elbows, equal tees, reducing tees, reducers, half couplings, full couplings, caps, and unions. Size range ½" NPS to 4" NPS. Socket bore dimensioned for standard pipe schedules. Used in high-pressure process lines where compact dimensions are required and full penetration butt welds are impractical.

■ SAEP-347
Type 03

Threaded / Screwed Fittings

Manufactured to ASME B16.11 in forged carbon steel (ASTM A105) and stainless steel (ASTM A182 F304 / F316). Pressure classes: Class 2000#, 3000#, and 6000#. Threads: NPT (ASME B1.20.1) and BSP (ISO 7). Types stocked: 45° and 90° elbows, equal tees, reducing tees, reducers, half couplings, full couplings, hex nipples, unions, hex plugs, and bushings. Size range ½" NPS to 4" NPS. Suitable for instrument connections, utility systems, and non-critical utility piping where disassembly is required.

■ SAEP-347
Type 04

Stub Ends & Lap Joint Flanges

Stub ends manufactured to ASME B16.9 (MSS SP-43 for stainless). Type A (long) and Type B (short) stub ends in carbon steel (ASTM A234 WPB) and stainless steel (ASTM A403 WP316L). Used in conjunction with lap joint flanges to allow easy rotation and alignment of bolt holes without rotating the pipe — essential in stainless steel, alloy, or lined piping where the flange can be carbon steel or a lower-cost material. Schedule 40 and 80 wall thicknesses. Size range ½" to 24". Supplied as matched sets with lap joint flanges on request.

■ SAEP-347
In Summary

Gulf Union Ozone maintains Jeddah stock of all major pipe fitting types — long radius (LR) and short radius (SR) 45° and 90° elbows, 180° returns, equal and reducing tees, concentric and eccentric reducers, caps, and couplings — in butt weld (ASME B16.9), socket weld (ASME B16.11), and threaded configurations. Butt-weld fittings cover NPS ½″ to 24″ in wall thicknesses from Sch 20 through XXS in carbon steel and Sch 5S through 80S in stainless steel and alloy steel. Weld-prep bevels are supplied to ASME B16.25 standard 37.5° bevel angle unless otherwise specified on the purchase order. Socket-weld and threaded fittings cover NPS ½″ to 4″ in 3000 lb and 6000 lb pressure classes per ASME B16.11. All fittings are held in our Jeddah warehouse ready for same-day dispatch, with third-party inspection (TPI) by Bureau Veritas or SGS available on request.

Saudi Aramco Compliance

36 Fittings Material Numbers — SAEP-347 Annex 4

Pipe fittings and piping represent the largest single category in Saudi Aramco's SAEP-347 Annex 4 approved stockable materials list — 36 of the 59 total material numbers fall within this category. This reflects the high consumption and repeat procurement of fittings on Saudi Aramco construction, tie-in, and maintenance projects.

Full MTCs and CoCs with every order

  • ✔ Gulf Union Ozone stocks pipe fittings compatible with all 36 fitting and piping material numbers listed in SAEP-347 Annex 4 — covering butt weld, socket weld, threaded, and stub end fitting types across all required material grades.
  • ✔ Material Test Certificates (EN10204 3.1) are supplied for every fitting. Each MTC includes chemical composition analysis, tensile strength, yield strength, elongation, hardness, and impact values where applicable.
  • ✔ Certificates of Conformance confirm dimensional compliance to ASME B16.9 / B16.11 and material compliance to the applicable ASTM specification. All certificates signed by QC manager and cross-referenced to heat and lot number.
  • ✔ NDE reports (PT, UT, RT) available on request for alloy steel and high-pressure fittings. Positive Material Identification (PMI) test reports available for stainless steel and alloy steel items where Aramco IK specifications require it.
View all 59 SAEP-347 material numbers →
36
Fittings Mat. Numbers
59
Total SAEP-347 Nos.

36 of 59 SAEP-347 material numbers — the largest category in Annex 4. Every shipment includes: EN10204 3.1 MTCs, CoCs, dimensional inspection report, packing list with heat and lot numbers. PMI and NDE reports available on request.

In Summary

SAEP-347 Annex 4 defines 36 pipe fitting material numbers: 18 butt-weld numbers (Annex 5) and 18 socket-weld and threaded numbers (Annex 6), covering carbon steel (A234 WPB/WPC), stainless steel (A403 WP316L), and alloy steel (A234 WP11/WP22) grades. Annex 5 butt-weld numbers span NPS ½″ to 24″ in schedules Sch 40 through XXS for carbon steel and Sch 10S through 80S for stainless, with each material number tied to a specific SAES piping class. Annex 6 socket-weld and threaded numbers cover NPS ½″ to 4″ in 3000 lb and 6000 lb classes per ASME B16.11. Gulf Union Ozone holds Jeddah stock of all 36 material numbers with EN 10204 3.1 mill test certificates on every shipment. Positive Material Identification (PMI) by XRF is available for stainless and alloy items, and third-party inspection can be coordinated prior to dispatch.

Material Specifications

What Material Grades Are Available for Pipe Fittings?

All materials stocked by Gulf Union Ozone are sourced from qualified mills and conform to the applicable ASTM material specifications referenced in SAEP-347 Annex 4.

Carbon Steel Fittings

Fitting Type ASTM Standard
Butt weld fittings ASTM A234 Gr. WPB
Socket weld & threaded ASTM A105
Low-temp (LT) BW fittings ASTM A420 Gr. WPL6

Alloy Steel Fittings

Grade Alloy / Service
ASTM A234 WP11 1.25Cr–0.5Mo — elevated temp steam
ASTM A234 WP22 2.25Cr–1Mo — refinery / H₂ service
ASTM A234 WP9 9Cr–1Mo — high-temp / corrosive service
ASTM A234 WP91 9Cr–1Mo–V — ultra high-temp power / refinery

Stainless Steel Fittings

Fitting Type ASTM Standard
BW fittings SS304 ASTM A403 WP304 / WP304L
BW fittings SS316 ASTM A403 WP316 / WP316L
Forged SW & threaded — SS304 ASTM A182 F304 / F304L
Forged SW & threaded — SS316 ASTM A182 F316 / F316L

Butt weld fittings: ½" to 24" NPS, Sch 40–XXS. Socket weld and threaded: ½" to 4" NPS, Class 3000# to 9000#. When specifying, provide: material grade, size (NPS), wall schedule, fitting type, and the SAEP-347 material number from your Aramco bill of materials.

Specifications last verified: August 2026

SAES-L-108 & SAES-L-133 — Cross-Reference Guide
SAES-L-108

Saudi Aramco Engineering Standard L-108 governs piping design and installation. It maps service conditions (fluid, temperature, pressure) to piping material classes — each class specifies the required fitting material, wall schedule, and pressure rating. Most normal-service carbon steel process lines fall under Class A1A, A1B, or A2A; the class determines whether A234 WPB, WPC, or higher-grade materials are required.

SAES-L-133

SAES-L-133 governs the selection of piping for sour service — lines containing hydrogen sulphide (H₂S) above NACE MR0175 threshold concentrations. For fittings in sour service, materials must comply with NACE MR0175/ISO 15156 and SAES-L-133 hardness limits (max 22 HRC for carbon steel). In practice, A234 WPB is acceptable if hardness-verified; A234 WP316L is required for highly corrosive or high-H₂S service.

Know your SAES piping class but not the SAEP-347 material number? Gulf Union Ozone's procurement team cross-references your piping class designation directly to the correct Annex 4 material number — eliminating specification errors before order placement.

In Summary

Pipe fitting material selection for Aramco projects follows three governing documents: the SAEP-347 material number (which identifies the specific pipe fitting type and material), SAES-L-108 (the piping material specification that maps service conditions to material class), and SAES-L-133 (which governs the selection of fittings for each piping class). Carbon steel A234 WPB is the default choice for most normal-service piping operating below 400°F (204°C); A234 WPC offers enhanced toughness at lower temperatures. A403 WP316L stainless steel covers corrosive service and sour service lines per NACE MR0175/ISO 15156, where chloride or hydrogen sulphide content exceeds carbon steel limits. Alloy steel A234 WP11 (1.25Cr-0.5Mo) and WP22 (2.25Cr-1Mo) apply above 350°C elevated temperature service, where carbon steel creep resistance is insufficient. Gulf Union Ozone engineers can cross-reference your SAES piping class to recommend the correct SAEP-347 material number.

Standards & Approvals

Manufacturing Standards & Size Range

All pipe fittings stocked by Gulf Union Ozone are manufactured in accordance with the dimensional standards referenced in SAEP-347 and in Saudi Aramco piping material specifications (SAMSS).

Dimensional Standards

ASME B16.9 Factory-made wrought butt weld fittings — elbows, tees, reducers, caps. Size ½" to 48" NPS.
ASME B16.11 Forged fittings — socket weld and threaded. Class 2000# to 9000#. Size ½" to 4" NPS.
MSS SP-43 Wrought and fabricated butt welding fittings for low-pressure, corrosion-resistant applications. Covers stainless steel and high-alloy fittings.
ASME B1.20.1 NPT pipe threads — general purpose. Applied to all threaded fittings. BSP (ISO 7 / BS 21) also stocked.

Size & Schedule Summary

Fitting Type Size Range Schedule / Class
Butt weld ½" – 24" NPS Sch 40 / 80 / 160 / XXS
Socket weld ½" – 4" NPS Class 3000# / 6000# / 9000#
Threaded ½" – 4" NPS Class 2000# / 3000# / 6000#

ISO 9001:2015 quality system: incoming inspection on all stock verifies dimensional and material compliance before fittings enter our Jeddah warehouse. All stock items carry fully traceable documentation from the originating mill.

In Summary

All Gulf Union Ozone pipe fittings comply with ASME B16.9 (butt weld) or ASME B16.11 (socket weld and threaded) dimensional standards and ASTM material specifications. Butt-weld range covers NPS ½″ to 24″ in Sch 40 through XXS in carbon steel A234 WPB/WPC, and Sch 10S through 80S in stainless steel A403 WP304L/WP316L and alloy steel A234 WP11/WP22. Long radius (LR) elbows are stocked as standard; short radius (SR) elbows are available on request. Weld bevels are prepared to ASME B16.25 standard 37.5° per ASME B31.3 weld-joint requirements. Socket-weld and threaded fittings cover NPS ½″ to 4″ in 3000 lb and 6000 lb pressure classes. Every order ships with EN 10204 3.1 mill test certificates and a Certificate of Conformance. Positive Material Identification (PMI) reports and third-party inspection by Bureau Veritas or SGS are available before dispatch from our Jeddah warehouse.

FAQ

Frequently Asked Questions — Pipe Fittings

Which pipe fittings are compatible with SAEP-347?

Gulf Union Ozone stocks 36 pipe fitting material numbers compatible with Saudi Aramco SAEP-347 — covering butt weld fittings (ASTM A234 WPB, ASME B16.9), socket weld fittings (ASTM A105N, ASME B16.11), and threaded fittings (ASTM A105N, ASME B16.11). All 36 material numbers are held in stock in our Jeddah warehouse for same-day dispatch with EN 10204 3.1 MTCs.

Do you supply MTCs and CoCs for pipe fittings?

Yes. Full Material Test Certificates (MTCs) and Certificates of Conformance (CoCs) are supplied with every pipe fitting order. MTCs are EN 10204 Type 3.1, issued by the manufacturer's independent inspection representative and traceable to the original mill heat number. CoCs confirm dimensional compliance with the applicable ASME B16 standard.

What pipe fitting standards do you carry?

Our inventory covers fittings to ASME B16.9 (butt weld fittings, all schedules from SCH 10 to XXS in sizes ½" to 24"), ASME B16.11 (socket weld and threaded fittings, Classes 3000 and 6000), and MSS SP-75 (high-yield butt weld fittings for pipeline service). All standards are recognized under Saudi Aramco SAEP-347 and SAES-L-108.

What is the difference between ASME B16.9 and ASME B16.11 fittings?

ASME B16.9 covers factory-made wrought butt-weld fittings (elbows, tees, reducers, caps) for sizes NPS ½" to 48" — used on butt-welded piping systems where the fitting is welded into the pipeline. ASME B16.11 covers forged fittings (couplings, elbows, tees, caps) in socket-weld and threaded end connections, typically used in Class 3000 or 6000 for small-bore high-pressure piping (NPS 4" and below). Butt weld fittings are used for large-bore or high-cycle systems; socket weld and threaded for instrument connections and small lines.

Do you stock Schedule 160 and XXS butt weld fittings?

Yes. Gulf Union Ozone stocks ASME B16.9 butt weld fittings in SCH 80, SCH 160, and XXS (double extra strong) in ASTM A234 WPB carbon steel and A403 WP316L stainless steel. Heavy-wall schedules are stocked for high-pressure, high-temperature, and corrosive service lines common in Saudi Aramco refinery and gas plant piping. Contact our team with your wall thickness and size requirements for availability confirmation.

Why Choose Us

Why EPC Contractors & Aramco Subcontractors Choose Gulf Union Ozone

Local stock. Local expertise. The right documentation the first time.

⚡

Local Stock — Same-Day Dispatch

Our Jeddah warehouse holds safety stock of the most frequently requested SAEP-347 fitting material numbers. Orders placed before cut-off are dispatched the same working day. For emergency tie-in and shutdown supply, we prioritise documentation preparation to match dispatch speed.

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Documentation Ready to Ship

EN10204 3.1 MTCs, CoCs, dimensional inspection reports, and packing lists are pre-assembled for all stocked items. For Aramco projects requiring PMI reports or NDE documentation, we coordinate with accredited third-party labs to ensure no delay to your delivery.

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ISO 9001:2015 Documented Quality

Our quality management system is ISO 9001:2015 certified. Stock receiving procedures include MTC verification, dimensional spot checks, and heat/lot number reconciliation. Deviations are quarantined. Our QC records are available for Aramco vendor audits upon request.

View ISO 9001:2015 certificate →
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Nationwide KSA Delivery

From our Jeddah headquarters we deliver pipe fittings to all major industrial centres: Al Jubail Industrial City, Yanbu Industrial City, Ras Tanura, Riyadh, Dammam, and all 18 KSA administrative regions. Site delivery and port delivery both available. Freight consolidated with valve and flange orders on request.

Explore More

Related Products & Resources

Pipe fittings are most commonly procured alongside valves, flanges, and carbon steel pipes. Gulf Union Ozone stocks all four product families for consolidated ordering.

Piping

Industrial Valves

23 SAEP-347 numbers — ball, gate, butterfly, check valves.
Piping

Flanges

Weld neck, slip-on, blind, LJ — ASME B16.5 & B16.47.
Piping

Carbon Steel Pipes

Seamless and ERW — API 5L, ASTM A106, ASTM A53.
Piping

Stainless Steel Pipes

ASTM A312 TP304L & TP316L — seamless, Sch 10S to 80S.
Compliance

SAEP-347 Compliance

All 59 Aramco material numbers — full documentation guide.
Quality

Capabilities & Quality

ISO 9001:2015 certified supply, MTCs, CoCs, SAEP-347 compliance.
Procurement guide: how to specify pipe fittings for Saudi Aramco projects →    ASTM A234 and A182 spec guide →    Forged steel fittings — socket weld & threaded guide →    ASTM A234 WPB butt weld fittings — elbows, tees, reducers →    Stainless steel pipe fittings — ASTM A403 WP304L WP316L →    Subsea fittings — super duplex 2507 and duplex 2205 for offshore →

SAEP-347 Pipe Fittings by Industrial City

Detailed SAEP-347 pipe fittings supply guides — stock, delivery times, and EN 10204 3.1 documentation for each major industrial hub.

Jubail Industrial City Dammam — Eastern Province Yanbu Industrial City Al Khobar Riyadh Jeddah
Get a Quote

Request a Pipe Fittings Quotation

Provide your SAEP-347 material number, fitting type (butt weld / socket weld / threaded), material grade, NPS size, wall schedule, and quantity. We respond with pricing and stock availability within 4 business hours. For urgent shutdown supply, we respond within 2 hours during business hours.

Email: info@gulfunionozone.com RFQ Form

CR 4030570569 | ISO 9001:2015 | Jeddah, Saudi Arabia

Inventory updated: August 2026