The F347/H ASTM Equal Tee is a critical piping component used to combine or split the flow of fluids in a pipeline. Constructed from stainless steel grade F347 or F347H, this fitting is renowned for its high resistance to intergranular corrosion and superior strength at elevated temperatures. The addition of niobium in its composition helps to stabilize the material, preventing carbide precipitation and enhancing its performance in corrosive environments. The “H” variant, with its higher carbon content, is particularly suitable for high-temperature applications. The Equal Tee’s three equal-sized outlets ensure a uniform distribution of fluids, making it ideal for use in industries such as chemical processing, petrochemical, and power generation where reliability and durability are essential.
| Property | Details |
|---|---|
| Standard | ASTM A182 |
| Material | Stainless Steel F347/H |
| Chemical Composition | Chromium (Cr): 17-19%<br>Nickel (Ni): 9-13%<br>Carbon (C): Max 0.10% (F347), 0.04-0.10% (F347H)<br>Niobium (Nb): 10 x C Min<br>Manganese (Mn): Max 2%<br>Silicon (Si): Max 1%<br>Phosphorus (P): Max 0.045%<br>Sulfur (S): Max 0.03% |
| Mechanical Properties | Tensile Strength: Min 515 MPa (75,000 psi)<br>Yield Strength: Min 205 MPa (30,000 psi)<br>Elongation: Min 40% |
| Type | Equal Tee |
| Connection Type | Welded or threaded connections |
| Size Range | Custom sizes available, typically from 1/2″ to 24″ |
| Pressure Rating | Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500 |
| Applications | High-temperature chemical processing, petrochemical industries, power generation |
| Manufacturing | Machined, heat-treated |
| Advantages | High-temperature strength, resistance to intergranular corrosion, uniform flow distribution |
| Ordering Information | Specify pipe sizes, pressure class, and connection type |
| Suppliers | McMaster-Carr, Grainger, Penn Stainless Products |
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