The F347/H ASTM Equal Cross is a versatile stainless steel fitting used to connect four pipes of the same diameter at a single junction. Manufactured from stainless steel grades F347 and F347H, it offers exceptional resistance to corrosion and high temperatures. The F347H variant, with its higher carbon content, provides enhanced mechanical strength and resistance to intergranular corrosion, making it suitable for applications where the fitting will be exposed to high temperatures and harsh environments. The design of the equal cross allows for a seamless flow of fluids through the intersecting pipes, making it ideal for use in complex piping systems in chemical processing, petrochemical, and power generation industries. Its robust construction ensures reliable performance and long service life under demanding conditions.
| 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 Cross |
| Connection Type | Butt-weld |
| 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 | Chemical processing, petrochemical industries, power generation |
| Manufacturing | Machined, heat-treated |
| Advantages | Excellent corrosion resistance, high-temperature strength, reliable performance |
| Ordering Information | Specify pipe sizes, pressure class, and connection type |
| Suppliers | McMaster-Carr, Grainger, Penn Stainless Products |
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