ASTM A234 Gr. WPB Carbon Steel Buttweld Fittings Manufacturer & Supplier
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- ASTM A234 Gr. WPB Carbon Steel Buttweld Fittings
ASTM A234 Gr. WPB Carbon Steel Buttweld Fittings are pipe fittings made from carbon steel, built to handle pressure piping and pressure vessel applications at moderate to high temperatures. These fittings include elbows, tees, reducers, caps, and crosses, all with butt weld ends for a secure fit. Midland Alloys Inc. is a trusted ASTM A234 WPB Fittings Manufacturer in India, offering fittings in various types and sizes. These fittings are made from carbon steel and can be seamless or welded, using forgings, bars, plates, or fusion-welded pipe with filler metal. They follow standards like ASME B16.9, B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, and MSS-SP-97. The primary alloying elements included in A234 Gr WPB Pipe Fittings are silicon, phosphorus, sulfur, manganese, and carbon. This carbon steel structure offers good strength, weldability, and toughness, making it a reliable choice across many industries.
Benefits of ASTM A234 WPB Seamless Fittings
ASTM A234 WPB seamless fittings offer strong performance in demanding industrial systems. Here are the key benefits explained:
- These fittings are strong enough to withstand pressure and large loads, because they are composed of durable carbon steel.
- The material resists rust and chemical wear, which helps extend the service life in harsh environments.
- Seamless fittings can be cut, shaped, and welded with ease, making them ideal for custom piping setups.
- These fittings require less maintenance and have fewer welds and joints, which lowers the possibility of leakage.
- They are designed to perform well under high pressure and elevated temperatures, making them suitable for critical systems.
Specification of ASTM A234 Gr. WPB Carbon Steel buttweld fittings
Seamless Butt Weld Fittings: 1/2" - 10"
Welded Butt Weld Fittings: 1/2" - 48"
ASTM A234/ ASME SA234
Forge, Cast, Push, Press, etc.
90 Deg. Elbow, 45 Degree Elbow, LR/SR Elbow, Reducers, Tee, Cross, Bends, U bend, 180 Deg Bend, End Cap, Lap-joint Stub End
ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10
Plain End, Beveled End, Treaded
SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75
Seamless / Welded / Fabricated
Types of ASTM A234 Gr. WPB Carbon Steel buttweld fittings
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Elbow (90°, 45°, Long Radius, Short Radius)Modifies the pipeline's flow direction at predetermined angles with regulated radii.
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Tee (Equal Tee, Reducing Tee)Adjusts the size of the main and branch lines to split or combine flow at 90° intersections.
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A reducer (eccentric or concentric)joins pipes with varying diameters while preserving flow offset or alignment.
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stub endIn non-permanent piping configurations, the stub end (long or short) connects to lap joint flanges for disassembly.
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Return Bends (180° bend)Redirects flow by 180 degrees, allowing the pipeline to reverse direction.
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Cross (Equal Cross, Reducing Cross)Provides multidirectional flow by joining four pipes at right angles.
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pipe capTo stop flow or pressure, an end cap also known as a pipe cap, seals the pipe's open end.
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Carbon Steel Lateral Teeused in piping systems to branch a pipeline at a 45° angle, ensuring smoother flow with reduced turbulence.
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Carbon steel Equal CrossA Carbon Steel Equal Cross is a pipe fitting used to connect four pipes of the same diameter at right angles.
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Carbon Steel Long Stub EndA Carbon Steel Long Stub End is used with lap joint flanges to allow easy disassembly of piping systems for inspection and maintenance.
Technical Details & Delivery Condition
| Element | Carbon (C) | Manganese (Mn) | Silicon (Si) | Phosphorus (P) | Sulfur (S) | Iron (Fe) |
|---|---|---|---|---|---|---|
| Carbon Steel Buttweld Fittings (% by weight) | 0.05% – 2.1% | 0.30% – 1.65% | 0.15% – 0.60% | ≤ 0.035% | ≤ 0.040% | Remainder (balance) |
| Properties | Imperial | Metric |
| Tensile strength | 86300 psi | 595 MPa |
| Modulus of elasticity | 29000 ksi | 200 GPa |
| Yield strength | 37700 psi | 260 MPa |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Hardness, Rockwell B | 85 | 85 |
| Elongation at break (in 50 mm) | 55% | 55% |
| Standard | Specification | Equivalent Grades |
|---|---|---|
| ASTM / ASME | A234 WPB / ASME SA234 WPB | Carbon Steel Buttweld Pipe Fittings |
| DIN | DIN 2605 / 2615 / 2616 | St 37.0, St 35.8, St 45 |
| EN | EN 10253-2 | P235GH, P265GH |
| ISO | ISO 3419 / ISO 5251 | CS Pipe Fittings |
| JIS | JIS B2311 / B2312 / B2313 | SGP, SCH 20, SCH 40 |
| BS | BS 1640 / BS 1965 | 3601, 3602 |
Carbon Steel Buttweld Fittings Grades We Offer
ASTM A234 Gr. WPB Carbon Steel Buttweld Fittings Manufacturing Standards
| ASME B16.9 ASTM A234 Pipe Fittings | Factory-Made Wrought Buttwelding Fittings | Long Radius Elbows, Long Radius Reducing Elbows, Long Radius Returns, Short Radius Elbows, Short Radius 180-deg Rerurns, 3D elbows, Straight Tees, Straight Crosses, Reducing Outlet Tees, Reducing Outlet Crosses, Lap Joint Stub Ends, Caps, Reducers |
| ASME B16.28 | Short Radius Elbows, Short Radius 180-deg Returns | |
| MSS SP43 | Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications | Long Radius Elbows, Straight and Reducing-on-the-Outlet Tees, Lap Joint Stub ends, caps, long radius 180 Degree returns, concentric reducers, eccentric reducers |
| Mss SP75 | Long Radius Elbows, 3R elbows, straight tees, reducing outlet tees, caps, reducers |
Sizing Table of ASTM A234 Gr. WPB Carbon Steel Buttweld Fittings
| Products | Sizes |
| CS Stub Ends | 1/2″ NB to 14″ NB |
| CS Cups | 1/2″ NB to 14″ NB |
| CS Socket Weld | Upto 2″ NB |
| CS Tees | 1″ NB to 14″ NB |
| CS Nipples | Upto 4″ |
| CS Couplings | Upto 4″NB |
| CS Reducers | 1″ NB to 14″ NB |
| CS Elbow | 1/2″ NB to 14″ NB |
High Temp of ASTM A234 Gr. WPB Carbon Steel Fittings Pressure Rating
| Pressure-Temperature Ratings for ASME B16.9 Carbon Steel Buttweld Pipe Fittings (psig) | |||||
|---|---|---|---|---|---|
| Temperature Ratings | Pressure Class | ||||
| 150 | 300 | ||||
| 1/4 – 1 Inches | 1 1/4 – 2 Inches | 2 1/2 – 3 Inches | |||
| (oF) | (oC) | ||||
| -20 to 150 | -29 to 66 | 300 | 2000 | 1500 | 1000 |
| 200 | 93 | 265 | 1785 | 1350 | 910 |
| 250 | 121 | 225 | 1575 | 1200 | 825 |
| 300 | 149 | 185 | 1360 | 1050 | 735 |
| 350 | 177 | 150 | 1150 | 900 | 650 |
| 400 | 204 | – | 935 | 750 | 560 |
| 450 | 232 | – | 725 | 600 | 475 |
| 500 | 260 | – | 510 | 450 | 385 |
| 550 | 288 | – | 300 | 300 | 300 |
Difference between Seamless ASTM A234 WPB Buttweld Fittings and ASTM A420 Gr. WPL6 Carbon Steel Buttweld Fittings
The primary differences between ASTM A420 Gr. WPL6 carbon steel buttweld fittings and seamless ASTM A234 WPB buttweld fittings are in their temperature range and use. A234 WPB fittings are made for moderate to high-temperature services, while A420 WPL6 fittings are built for low-temperature applications. WPB fittings use standard carbon steel with good strength and weldability. WPL6 fittings go through extra impact testing at low temps, and have tighter toughness requirements. Both follow similar shapes and welding types, but their material specs and service conditions set them apart.
How ASTM A234 Gr. WPB Carbon Steel Buttweld Fittings Are Manufactured
Pipe
Cutting
Forming
Sizing
Heat Treatment
Pickling
Beveling
Polishing
Sand Blasting
Elbow
Inspection
Analytic
Marking
Packing & Shipping
Applications of Welded A234 WPB Pipe Fittings
In systems that transport fluids under pressure, welded A234 WPB pipe fittings are utilized. They help connection pipes carrying refined, gas or crude fuels in the oil and gas sector. Petrochemical and chemical plants use them to handle process fluids safely and reliably. In power generation, they support steam, water and cooling lines that run at high temperatures. Water and wastewater treatment plants use ERW Carbon Steel A234 WPB Fittings in flow systems that manage clean and dirty water.
Why choose Midland Alloy A234 Gr WPB Pipe Fittings?
Midland Alloys Inc. is an ISO 9001 certified manufacturer you can trust for A234 Gr WPB pipe fittings. We offer custom lengths, finishes, and coil forms to match your needs. With a global export network, we ship fast and on time. Every fitting comes with full material traceability and is backed by third-party inspection. We perform tests like the hardness test, PMI test, IGC test, flattening test, and mechanical testing. Our team is available 24/7 to support you at every step. We stand out by combining quality, service and reliability without cutting corners.
FAQs – ASTM A234 Gr. WPB Carbon Steel Buttweld Fittings
Temperatures up to 427°C (800°F) can normally be handled by ASTM A234 WPB fittings, depending on the pressure and application.
They can be joined with stainless steel using proper welding methods and filler material, but galvanic corrosion should be considered.
No, carbon steel fittings are not recommended for food or pharmaceutical systems due to the risk of contamination and corrosion.
