Pipe | 3/8" x 4-1/2" Nipple Black
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Wholesale PricingThis 3/8″ × 4‑1/2″ black steel Schedule 40 nipple is a welded, male‑to‑male NPT pipe fitting made from carbon steel. It's coated with a protective black varnish to resist surface oxidation, making it suitable for gas lines (including LP and natural gas), steam, oil, and other industrial fluids. The threading conforms to standard ANSI/ASME B1.20.1, and the material meets ASTM A‑53 / A‑733 standards.
Backed by hydrostatic testing, this nipple offers reliable strength and compatibility in a variety of systems.
Key Features
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Black varnish finish for corrosion protection.
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Welded Schedule 40 carbon steel construction.
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Conforms to ASTM A‑53 / A‑733 steel-pipe standards.
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Threading per ANSI/ASME B1.20.1 (NPT tapered threads).
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Rated for up to ~500 psi working pressure at 150°F (according to BK Products).
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Suitable for gas, steam, oil, LP, and similar medium‑pressure fluid systems.
