Manufactured with threads which conform with the American standard taper pipe thread and have a good resistance to vibration and pipe movement.Tapered threads of the pipe mesh with tapered thread of fitting form an air tight seal. Recommended uses:copper, brass and iron pipe Working temperature: –65°F to 250°F Material: 1) Bar Stock CA360 2) Forged CA377 Working pressure: 1,000 psi Applications: oil, water, air, natural gas, and liquified petroleum product