ASTM A234 WPB Tee, High Strength Carbon Steel Butt Weld Tee for Oil, Gas and Water Pipeline Systems
Brief Introduction
ASTM A234 WPB Tee is a premium carbon steel pipe fitting, manufactured in strict accordance with ASTM A234 / ASME SA234 and ASME B16.9 standards. WPB is the most widely used grade of carbon steel for medium and high-temperature service, offering excellent toughness, high tensile strength, and superior weldability. As a crucial branch component, the tee is designed to divide or combine fluid flow in a pipeline system. Available in Equal (same diameter) and Reducing (different diameter) configurations, this butt weld (BW) tee features a robust structure, precise dimensions, and reliable performance. It is specifically engineered for use in oil, gas, petrochemical, and water transmission industries, providing a cost-effective and durable solution for high-pressure and high-temperature pipeline applications.
Chemical Composition Analysis (wt%)
| Alloy Grade | C | Mn | Si | P | S | Cu | Fe |
| ASTM A234 WPB | ≤0.30 | 0.29 - 1.06 | ≤0.50 | ≤0.035 | ≤0.035 | ≤0.40 | Balance |
Typical Mechanical Properties
| Mechanical Property | Standard Requirement (Min.) | Typical Value |
| Yield Strength (Rp0.2), MPa | ≥240 (248) | 250 - 350 |
| Tensile Strength (Rm), MPa | ≥415 (485) | 420 - 550 |
| Elongation (A), % | ≥22 | 24 - 30 |
| Hardness (HB), Brinell | ≤187 | 120 - 170 |
| Impact Toughness (KV), J (@20°C) | ≥34 | 40 - 60 |
| Max. Working Temperature | 425°C | 425°C |
Available Tests
| Test Type | Standard |
| Chemical Composition Analysis | ASTM E1019, Spectrometry |
| Tensile & Impact Testing | ASTM E8, ASTM A370, Charpy V-Notch |
| Hardness Testing | ASTM E18 (Rockwell), ASTM E10 (Brinell) |
| Hydrostatic Pressure Test | ASTM A234, ASME B16.9 |
| Non-Destructive Testing (NDT) | 100% RT (Radiographic), UT, PT, MT |
| Dimensional Verification | ASME B16.9, CMM, Gauge Inspection |
| Positive Material Identification (PMI) | XRF, OES |
| Weld Procedure Qualification (WPQ) | ASME IX |