ASTM B363 / ASME SB363 is a specification for seamless and welded fittings made from wrought titanium and titanium alloys. These fittings are intended for use in pressure systems where elevated temperature and high-pressure conditions exist.
The specification covers fittings such as elbow, tee, reducer, cross, and other similar shapes. The fittings can be made from titanium or titanium alloys of various grades such as Grade 1, Grade 2, Grade 3, Grade 7, Grade 9, Grade 11, Grade 12, Grade 16, Grade 17, and Grade 26.
ASTM B363 / ASME SB363 specifies the dimensions, tolerances, materials, marking, and testing requirements for the fittings. The fittings can be either seamless or welded, and they can be manufactured using different methods such as hot forging, hot pressing, hot rolling, or machining.
These fittings are commonly used in various industries such as chemical processing, oil and gas, marine, aerospace, and medical applications due to their excellent corrosion resistance, high strength-to-weight ratio, and biocompatibility properties.
The dimensions of ASTM B363 / ASME SB363 fittings depend on the type, size, and schedule of the fitting. The standard specifies the following dimensions for fittings:
- Elbows: Elbows are available in different angles such as 45°, 90°, and 180°. The standard specifies the center-to-end dimensions and the overall length of the fittings.
- Tees: Tees are available in equal and reducing configurations. The standard specifies the center-to-end dimensions and the overall length of the fittings.
- Reducers: Reducers are available in concentric and eccentric configurations. The standard specifies the dimensions for the large and small ends, as well as the center-to-end dimensions and overall length of the fittings.
- Caps: Caps are used to close the end of a pipe or fitting. The standard specifies the dimensions for the cap’s diameter, wall thickness, and overall length.
- Crosses: Crosses are available in equal and reducing configurations. The standard specifies the center-to-end dimensions and overall length of the fittings.
The dimensions of ASTM B363 / ASME SB363 fittings can be found in the standard, and they may also vary depending on the manufacturer’s specifications. It is important to ensure that the fittings meet the required dimensions and tolerances for the specific application.