ASTM A234 WPB / WPC Carbon Steel Seamless & Welded Fittings – ISO Certified Global Supplier – Wide Range of Pipe Schedules & Sizes in Stock.
We are a trusted ISO 9001:2015 certified manufacturer and global exporter of ASTM A234 WPB/WPC carbon steel pipe fittings, offering a wide range of buttweld and forged components. With a strong presence in the piping and flow control industry, we specialize in precision-engineered pipe fittings that meet the most stringent quality and dimensional requirements. Our extensive product line includes elbows, tees, reducers, caps, and customized fittings, delivered as per client specifications and international norms.
ASTM A234 WPB and WPC are commonly used grades for carbon steel buttweld pipe fittings, suitable for moderate to high-temperature services. These fittings are manufactured in accordance with ASME B16.9 (buttweld fittings), ASME B16.28 (short radius elbows and returns), and MSS-SP-75 for high-pressure applications. Available in seamless and welded forms, our WPB/WPC fittings are supplied in pressure schedules ranging from SCH 10 to SCH XXS, and in sizes from ½” NB to 48″ NB. The fittings are also compatible with ANSI/ASME pipe classes from 150# to 2500#.
ASTM A234 WPB/WPC fittings are extensively used in oil & gas pipelines, refineries, power plants, petrochemical plants, shipbuilding, water treatment systems, and industrial boiler piping systems. Known for their strength and ability to withstand pressure and temperature variations, these carbon steel fittings are ideal for welded piping systems that require tight connections, corrosion resistance, and high mechanical performance under stress.
Our carbon steel fittings are thoroughly tested for mechanical integrity, surface finish, and dimensional accuracy. Key advantages include high weldability, cost-effectiveness, excellent pressure-handling capacity, and easy installation. All products are supplied with full traceability, including MTCs, hydro test reports, and third-party inspection certificates. We ensure fast worldwide dispatch, customized packaging, and export-ready documentation for smooth international shipping.
Supplier of ASTM A234 WPB/WPC Carbon Steel Pipe Fittings – Buttweld Components: Buttweld Elbows, Tees, Reducers, Caps, Stub Ends – Compliant with ASME B16.9 & MSS SP-75 – Sizes from ½” to 48”, SCH 10 to XXS – ISO Approved.
Technical Index
Industrial Carbon Steel ASTM A234 WPB/WPC Specifications
| Material Grade | ASTM A234 WPB/WPC |
|---|---|
| Available Product Types | Buttweld Fittings (Elbows, Tees, Reducers, Caps, Stub Ends) |
| Size Range | ½” NB to 24” NB (Seamless), ½” NB to 48” NB (Welded) |
| Wall Thickness | SCH 10, SCH 20, SCH 40, SCH 80, SCH 120, SCH 160, XXS |
| Standard Specifications | ASTM A234 / ASME SA234, ANSI B36.10, B36.19 |
| Manufacturing Standards | ASME B16.9, MSS SP-75, EN 10253, DIN 2605/2615/2616, ISO 3419, JIS B2312 |
| Types | 90° Elbow (LR/SR), 45° Elbow, Equal Tee, Reducing Tee, Concentric Reducer, Eccentric Reducer, End Cap, Stub End |
| Form | Seamless, Welded, Fabricated |
| Heat Treatment | Normalized, Tempered, Quenched & Tempered (as per grade) |
| Mechanical Properties | Tensile Strength: 415–585 MPa (varies by grade) Yield Strength: 205–415 MPa (varies by grade) Elongation: ≥20% |
| Pressure Ratings | As per ASME B16.9, applicable to SCH & temperature class (up to 500°C or more depending on grade) |
| Testing & Certifications | EN 10204 3.1 & 3.2, NACE MR0175, IBR Approved, PMI, UT, Hydro Test, Radiography, MPT |
| Surface Finish | Black Coated, Anti-Rust Coated, Sand Blasted, Pickled |
| End Connection Types | Beveled Ends (BE), Plain Ends (PE) |
| Manufacturing Capabilities | Hot Forming, Cold Forming, Induction Heating, CNC Beveling, Custom Fabrication |
| Raw Material Sources | India, Japan, South Korea, USA, Germany, Italy |
| Export Destinations | USA, UAE, Saudi Arabia, Qatar, Oman, Kuwait, Egypt, South Africa, Nigeria, Indonesia, Malaysia, Singapore, Europe |
Industrial ASTM A234 Carbon Steel Standards
| ANSI/ASME B16.9 – Factory-Made Wrought Steel Buttwelding Fittings | ANSI/ASME B16.28 – Wrought Steel Short Radius Elbows and Returns | ANSI/ASME B16.25 – Buttwelding Ends(beval standards) | MSS SP-43 – Wrought and fabricated Butt welding Fittings for Light Wall Applications |
| MSS SP-75 – High Test Wrought Butt welding Fittings | DIN 2616 – Butt welding Pipe Fittings: Reducers | DIN 2617 – Butt welding Pipe Fittings: Caps | DIN28011 – Dished Ends(used in pressure vessels) |
| EN10253-1 Butt-welding Pipe Fittings(Non Alloy Steels) | EN10253-2 Butt-welding Pipe Fittings(Stainless/Alloy Steels) |
ASTM A234 WPB/WPC Carbon Steel International Standards
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| ASTM A234 WPB | 1.0457 | K03006 | STPG 370 | 3601 430 | 20 | E24-2 | P235TR2 / P265GH |
| ASTM A234 WPC | 1.0501 | K03504 | STPG 410 | 3601 430 | 20 | E28-2 | P265GH / P280GH |
ASTM A234 Carbon Steel Chemical Composition
| Grade | C (%) | Mn (%) | P (%) | S (%) | Si (%) | Cr (%) | Mo (%) | Ni (%) | V (%) |
|---|---|---|---|---|---|---|---|---|---|
| ASTM A234 WPB | 0.30 max | 0.29–1.06 | 0.05 max | 0.058 max | 0.10 min | 0.40 max | 0.15 max | 0.40 max | 0.08 max |
| ASTM A234 WPC | 0.35 max | 0.29–1.06 | 0.04 max | 0.05 max | 0.10 min | 0.40 max | 0.15 max | 0.40 max | 0.08 max |
Carbon Steel WPB/WPC Mechanical Properties
| Grade | Tensile Strength (MPa) | Yield Strength 0.2% (MPa) | Elongation (%) | Hardness (HB max) |
|---|---|---|---|---|
| ASTM A234 WPB | 415 min | 240 min | ≥ 20 | 197 max |
| ASTM A234 WPC | 485 min | 275 min | ≥ 20 | 197 max |
ASTM A234 Carbon Steel Types
ASTM A234 WPB/WPC Carbon Steel Industries & Applications
ASTM A234 WPB Carbon Steel Buttweld Fittings Dimensions
| NOMINAL PIPE SIZE | ALL FITTINGS | ALL FITTINGS | ALL FITTINGS | ELBOWS AND TEES | 180 DEG RETURN BENDS | 180 DEG RETURN BENDS | 180 DEG RETURN BENDS | REDUCERS | CAPS |
|---|---|---|---|---|---|---|---|---|---|
| NPS | O.D. at Bevel (1), (2) | I.D. at End (1), (3), (4) |
Wall Thickness (3) | Centre-to-End Dimension A,B,C,M | Centre-to-Centre O | Back-to-Face K | Alignment of Ends U | Overall Length H | Overall Length E |
| ½ to 2½ | 0.06 -0.03 |
0.03 | Not less than 87.5% of nominal thickness | 0.06 | 0.25 | 0.25 | 0.03 | 0.06 | 0.12 |
| 3 to 3 ½ | 0.06 | 0.06 | Not less than 87.5% of nominal thickness | 0.06 | 0.25 | 0.25 | 0.03 | 0.06 | 0.12 |
| 4 | 0.06 | 0.06 | Not less than 87.5% of nominal thickness | 0.06 | 0.25 | 0.25 | 0.03 | 0.06 | 0.12 |
| 5 to 8 | 0.09 -0.06 |
0.06 | Not less than 87.5% of nominal thickness | 0.06 | 0.25 | 0.25 | 0.03 | 0.06 | 0.25 |
| 10 to 18 | 0.16 -0.12 |
0.12 | Not less than 87.5% of nominal thickness | 0.09 | 0.38 | 0.25 | 0.06 | 0.09 | 0.25 |
| 20 to 24 | 0.25 -0.19 |
0.19 | Not less than 87.5% of nominal thickness | 0.09 | 0.38 | 0.25 | 0.06 | 0.09 | 0.25 |
| 26 to 30 | 0.25 -0.19 |
0.19 | Not less than 87.5% of nominal thickness | 0.12 | … | … | … | 0.19 | 0.38 |
| 32 to 48 | 0.25 -0.19 |
0.19 | Not less than 87.5% of nominal thickness | 0.19 | … | … | … | 0.19 | 0.38 |
ASTM A234 WPC Carbon Steel Thickness Chart
| Product range and theoretical weights (kg) | |||||||||
| DN | Schedule 10S | Schedule 40S | Schedule 80S | ||||||
| 90° Elbow | 45° Elbow | Equal tee | 90° Elbow | 45° Elbow | Equal tee | 90° Elbow | 45° Elbow | Equal tee | |
| 8 | 0.02 | 0.01 | 0.03 | 0.03 | 0.02 | 0.06 | 0.04 | 0.03 | 0.07 |
| 10 | 0.03 | 0.02 | 0.05 | 0.03 | 0.02 | 0.03 | 0.06 | 0.04 | 0.09 |
| 15 | 0.06 | 0.03 | 0.09 | 0.08 | 0.04 | 0.10 | 0.10 | 0.05 | 0.14 |
| 20 | 0.07 | 0.03 | 0.13 | 0.08 | 0.04 | 0.17 | 0.11 | 0.05 | 0.20 |
| 25 | 0.14 | 0.08 | 0.28 | 0.15 | 0.11 | 0.29 | 0.22 | 0.14 | 0.38 |
| 32 | 0.23 | 0.11 | 0.49 | 0.26 | 0.17 | 0.59 | 0.40 | 0.23 | 0.68 |
| 40 | 0.30 | 0.17 | 0.68 | 0.40 | 0.23 | 0.86 | 0.51 | 0.29 | 1.02 |
| 50 | 0.50 | 0.25 | 0.85 | 0.70 | 0.4 | 1.28 | 0.91 | 0.59 | 1.59 |
| 65 | 0.85 | 0.48 | 1.41 | 1.40 | 0.77 | 2.19 | 1.81 | 0.99 | 3.13 |
| 80 | 1.25 | 0.63 | 1.77 | 2.20 | 1.08 | 3.31 | 2.97 | 1.50 | 4.45 |
| 90 | 1.70 | 0.75 | 2.67 | 2.83 | 1.42 | 4.08 | 4.00 | 2.00 | 5.44 |
| 100 | 2.10 | 1.08 | 3.46 | 4.47 | 2.09 | 5.27 | 6.18 | 2.81 | 7.71 |
| 150 | 5.45 | 2.72 | 8.07 | 10.89 | 5.44 | 10.99 | 16.32 | 8.16 | 13.61 |
| 200 | 10.20 | 5.33 | 15.65 | 21.54 | 10.77 | 20.91 | 33.11 | 16.56 | 28.12 |
| 250 | 18.15 | 9.75 | 26.46 | 38.56 | 19.27 | 35.38 | 51.71 | 25.86 | 49.90 |
| 300 | 25.80 | 13.62 | 39.46 | 59.42 | 29.71 | 62.14 | 79.38 | 39.69 | 83.91 |
| Product range and theoretical weights (kg) | |||||||||
| DN | Schedule 10S | Schedule 40S | Schedule 80S | ||||||
| Con reducer | Ecc reducer | Reducing tee | Con reducer | Ecc reducer | Reducing tee | Con reducer | Ecc reducer | Reducing tee | |
| 40x.25 | 0.19 | 0.19 | 0.60 | 0.26 | 0.26 | 0.76 | 0.34 | 0.34 | 0.90 |
| 50×25 | 0.28 | 0.28 | 0.73 | 0.40 | 0.40 | 1.10 | 0.54 | 0.54 | 1.37 |
| 50×40 | 0.31 | 0.31 | 0.76 | 0.45 | 0.45 | 1.15 | 0.59 | 0.59 | 1.43 |
| 80x.50 | 0.55 | 0.55 | 1.56 | 1.00 | 1.00 | 2.91 | 1.79 | 1.79 | 3.91 |
| 100×50 | 0.78 | 0.78 | 2.94 | 1.50 | 1.50 | 4.48 | 1.95 | 1.95 | 6.55 |
| 100×80 | 0.87 | 0.87 | 3.04 | 1.74 | 1.74 | 4.64 | 2.33 | 2.33 | 6.79 |
| 150×80 | 1.82 | 1.82 | 6.86 | 3.95 | 3.95 | 9.68 | 5.51 | 5.51 | 11.57 |
| 150×100 | 1.96 | 1.96 | 7.10 | 4.07 | 4.07 | 11.94 | 5.96 | 5.96 | 11.97 |
| 200×100 | 3.01 | 3.01 | 13.46 | 6.55 | 6.55 | 17.98 | 9.23 | 9.23 | 24.18 |
| 200×150 | 3.19 | 3.19 | 14.08 | 6.74 | 6.74 | 18.82 | 10.12 | 10.12 | 25.31 |
Major Industrial ASTM A234 Carbon Steel Fittings Export Countries
United Arab Emirates (UAE), Jordan, Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, United States of America (USA), Singapore, Malaysia, Azerbaijan, Armenia, Georgia, Egypt, Algeria, Nigeria, South Africa, Kenya, Morocco, Ethiopia, Ghana, Tanzania, Sudan, Uganda, Angola.