What sizes of ASTM A234 WPB butt weld fittings are stocked in Saudi Arabia?

Gulf Union Ozone stocks ASTM A234 WPB butt weld fittings from NPS ½" to 24" in standard wall (STD), schedule 40 (SCH 40), and extra heavy (XH/SCH 80) wall thicknesses. Fitting types in stock include 90° long radius and short radius elbows, 45° elbows, equal and reducing tees, concentric and eccentric reducers, and caps. All conform to ASME B16.9 dimensional standard. Sizes above NPS 24" or special wall schedules (SCH 100, 120, 160, XXH) are available on inquiry with 4–8 week lead time.

What is the difference between ASTM A234 WPB and ASTM A234 WPC fittings?

ASTM A234 WPB (Grade B) is the standard carbon steel fitting grade for service from −29°C to 538°C, used in the majority of oil and gas piping applications. ASTM A234 WPC (Grade C) has higher tensile strength (485 MPa min vs 415 MPa for WPB) and is used where higher strength is needed without upgrading to an alloy grade. Saudi Aramco projects predominantly specify WPB for carbon steel piping — WPC is occasionally used in high-load structural piping. Gulf Union Ozone stocks WPB as the primary grade; WPC is available on special inquiry.

ASTM A234 WPB · Carbon Steel · Butt Weld Fittings · Saudi Arabia · SAEP-347

ASTM A234 WPB Carbon Steel Butt Weld Fittings — SAEP-347 Compatible

ASME B16.9 · NPS ½″ – 24″ · EN 10204 3.1 MTCs · ISO 9001:2015 · Jeddah Stock

Gulf Union Ozone is a Saudi Arabia-based stockist of ASTM A234 WPB carbon steel butt weld pipe fittings — the most widely specified carbon steel fitting grade for Saudi Aramco and major oil, gas, and petrochemical projects in the Kingdom. Our Jeddah warehouse holds the complete ASME B16.9 range: 90° long radius and short radius elbows, 45° elbows, equal tees, reducing tees, concentric and eccentric reducers, and end caps. All fittings include EN 10204 Type 3.1 Mill Test Certificates from the original mill for SAEP-347 project documentation.

WhatsApp for Quote Submit RFQ

ASTM A234 WPB carbon steel butt weld pipe fittings Saudi Arabia SAEP-347 — Gulf Union Ozone

Specification Overview

What Is ASTM A234 WPB? — The Standard Carbon Steel Butt Weld Fitting Grade

ASTM A234 covers wrought carbon and alloy steel pipe fittings for pressure piping service. Grade WPB (Wrought Pipe B) is the default carbon steel grade — manufactured by forging, extrusion, seamless rolling, or from welded pipe. ASTM A234 WPB covers the temperature range −29°C to 538°C, making it suitable for the full range of oil and gas process piping conditions encountered in Saudi Arabia.

Under ASME B16.9, ASTM A234 WPB fittings must match the pressure rating of the pipe they are welded to — a fitting of the same schedule as the adjoining pipe provides equal or greater burst pressure. This is the fundamental advantage of butt weld fittings over threaded connections for high-pressure process piping.

ASTM A234 WPB vs ASTM A105 — Key Difference

ASTM A234 WPB covers butt weld fittings manufactured from wrought pipe or plate — used for large-bore piping (NPS 2″ and above) where butt welding is the standard connection method. ASTM A105 covers forged fittings (socket weld and threaded) for small-bore piping. Both grades are SAEP-347 compatible and are supplied with EN 10204 3.1 MTCs by Gulf Union Ozone. View ASTM A105 forged fittings →

ASTM A234 WPB — Key Properties

Tensile strength	415 MPa min
Yield strength	240 MPa min
Elongation	22% min (longit.)
Carbon content	0.30% max
Temp range	−29°C to 538°C
SAEP-347	✓ Compatible

EN 10204 3.1 MTC Compliance

Every ASTM A234 WPB order includes EN 10204 Type 3.1 Mill Test Certificates — heat number, actual chemical analysis, mechanical test results, and 3.1 inspector signature from the original mill. Required for Saudi Aramco SAEP-347 Goods Receipt.

EN 10204 3.1 vs 3.2 explained →

In Summary

ASTM A234 WPB is the standard for carbon steel wrought butt-weld pipe fittings — elbows, tees, reducers, and caps — manufactured to ASME B16.9 dimensional standards. WPB (Wrought Plain material Butt-weld) designates carbon steel with a tensile strength minimum of 60,000 psi and yield strength of 35,000 psi. The normalized variant (WPB-N) is required under ASME B31.3 and Saudi Aramco SAES-L-108 for fittings above Schedule 80 in high-pressure and high-temperature piping service. EN 10204 3.1 material traceability is mandatory for all SAEP-347 butt-weld fitting line items.

Complete Product Range

ASTM A234 WPB Butt Weld Fitting Types — ASME B16.9 Stock Range

Gulf Union Ozone stocks the complete ASME B16.9 range of ASTM A234 WPB butt weld carbon steel pipe fittings in Jeddah. All sizes from NPS ½″ to 24″, standard and extra heavy wall schedules.

Fitting Type	Description	Size Range	Wall / Schedule	In Stock
90° LR Elbow	Long radius 90° — R = 1.5D. Standard for process piping; lower pressure drop than SR.	½″ – 24″	STD / SCH 40 / XH / SCH 80	✓
90° SR Elbow	Short radius 90° — R = 1D. Used where space is limited. Higher pressure drop.	½″ – 24″	STD / XH	✓
45° LR Elbow	Long radius 45° direction change. Minimum pressure drop. Gradual pipeline routing.	½″ – 24″	STD / XH	✓
180° Return Elbow	U-bend for return flow in heat exchangers, process headers, and manifolds.	½″ – 12″	STD / XH	✓
Equal Tee	Branch same size as run. Full-bore branch connection for headers and distribution.	½″ – 24″	STD / SCH 40 / XH / SCH 80	✓
Reducing Tee	Branch smaller than run. Multiple reducing combinations stocked.	½″ – 24″	STD / XH	✓
Concentric Reducer	Centreline maintained. Standard for vertical piping and most process applications.	¾″×½″ – 24″×20″	STD / XH	✓
Eccentric Reducer	Flat bottom or top. Used on pump suction (to avoid air pockets) and horizontal drains.	¾″×½″ – 24″×20″	STD / XH	✓
End Cap	Closes open pipe ends. Hemispherical or ellipsoidal head. Used for hydrotest plugging and permanent closures.	½″ – 24″	STD / XH	✓

All fittings: ASTM A234 WPB · ASME B16.9 · EN 10204 3.1 MTCs · SAEP-347 compatible · Request quote →

In Summary

ASTM A234 WPB butt-weld fittings are available in six primary configurations: 90° long-radius elbows (LR, most common; sweep radius = 1.5 × NPS), 45° elbows, equal tees, reducing tees, concentric reducers, and eccentric reducers. Short-radius (SR) elbows with 1.0 × NPS radius are available for space-constrained installations. Caps and stub ends for lap-joint flanged connections are also A234 WPB. All configurations are produced to ASME B16.9 tolerances and wall thickness schedules from SCH 10 through XXS.

FAQ

ASTM A234 WPB Questions — Answered

What is ASTM A234 WPB and is it compatible with Saudi Aramco SAEP-347?

ASTM A234 is the standard for wrought carbon steel pipe fittings. Grade WPB covers butt weld fittings (elbows, tees, reducers, caps) manufactured to ASME B16.9, used in oil and gas process piping from −29°C to 538°C. Yes — ASTM A234 WPB is compatible with Saudi Aramco SAEP-347 Annex 4 requirements for carbon steel pipe fittings. Gulf Union Ozone supplies all A234 WPB fittings with EN 10204 3.1 MTCs for SAEP-347 documentation. View SAEP-347 material numbers →

What sizes of ASTM A234 WPB fittings are stocked in Saudi Arabia?

Gulf Union Ozone stocks ASTM A234 WPB butt weld fittings from NPS ½″ to 24″ in standard wall (STD/SCH 40) and extra heavy (XH/SCH 80) wall thicknesses. Fitting types include 90° LR and SR elbows, 45° elbows, 180° return elbows, equal and reducing tees, concentric and eccentric reducers, and end caps — all to ASME B16.9. Sizes above NPS 24″ or special schedules (SCH 100, 120, 160, XXH) are available on inquiry with 4–8 week lead time. Contact via RFQ form for stock confirmation.

What is the difference between ASTM A234 WPB and ASTM A105 fittings?

ASTM A234 WPB covers butt weld fittings (ASME B16.9) manufactured from wrought carbon steel pipe — used for large-bore piping (NPS 2″+) where full-penetration butt welds are the standard connection method. ASTM A105 covers forged socket weld and threaded fittings (ASME B16.11) for small-bore piping (typically NPS ¼″ to 4″). Both grades are SAEP-347 compatible and supplied with EN 10204 3.1 MTCs. ASTM A105 forged fittings →

Do ASTM A234 WPB fittings require EN 10204 3.1 MTCs for Saudi Aramco?

Yes. Saudi Aramco SAEP-347 requires EN 10204 Type 3.1 Mill Test Certificates for carbon steel pipe fittings covered by Annex 4 material numbers. The 3.1 MTC must include: the heat/lot number, actual chemical analysis, actual mechanical test results, and a 3.1-qualified inspector's signature from a party independent of the production department. Gulf Union Ozone provides original mill 3.1 MTCs with every ASTM A234 WPB order. EN 10204 3.1 guide →

All Pipe Fittings → ASTM A105 Forged Fittings → SAEP-347 Material Numbers → ASTM A105 Carbon Steel Flanges → EN 10204 3.1 MTC Guide → EPC Procurement Guide → CS Butt Weld Fittings by Type (Elbow, Tee, Reducer) → ASTM A106 / API 5L Carbon Steel Pipes →

ASTM A234 WPB · Butt Weld Fittings · ASME B16.9 · SAEP-347 · EN 10204 3.1 · Jeddah Stock

Request a Quote — A234 WPB Fittings Dispatched from Jeddah

ASME B16.9 · EN 10204 3.1 MTCs · ISO 9001:2015 · CR 4030570569 ·

Submit Pipe Fittings RFQ WhatsApp for Quote Browse All Pipe Fittings →

In Summary

Gulf Union Ozone delivers ASTM A234 WPB carbon steel butt-weld pipe fittings across Saudi Arabia from our Jeddah distribution warehouse. The full ASME B16.9 range — 90° and 45° long-radius elbows, equal and reducing tees, concentric and eccentric reducers, and end caps — is stocked in sizes from ½" NB through 24" NB in wall schedules from Schedule 40 through XXS. EN 10204 3.1 mill test certificates from approved forge masters accompany every delivery for Saudi Aramco SAEP-347 Goods Receipt documentation compliance. Standard delivery lead times: Jubail and Dammam 48–72 hours; Al Khobar 72 hours; Riyadh 72–96 hours; Jeddah same-day collection. Emergency supply for Saudi Aramco plant shutdowns and turnarounds — including non-standard schedules and large-bore sizes — is dispatched on priority from bonded stock. SAEP-347 Annex 4 material numbers are cross-referenced on every quotation. Third-party inspection by SGS or Bureau Veritas is available for Saudi Aramco mandatory TPI requirements at Goods Receipt.