1 inch x 4 inch Stainless Steel Nipple

304 Stainless Steel Nipple – Schedule 40, Threaded Both Ends

The 304 stainless steel nipple is a short, straight pipe section with male National Pipe Taper (NPT) threads on both ends. Constructed from austenitic stainless steel conforming to ASTM A312 or A733, this fitting is used to join female-threaded components in pressurized systems requiring high corrosion resistance and mechanical strength.

Engineered for use in water, air, gas, and non-corrosive fluid applications, 304 stainless steel offers excellent resistance to oxidation and chemical degradation. The nipple is typically installed in piping assemblies where dimensional accuracy and leak integrity are essential.

Product Features

• ✅ Material: Type 304 stainless steel – non-magnetic in the annealed condition
• ✅ Threading: NPT male threads on both ends, machined to ANSI/ASME B1.20.1 standards
• ✅ Wall Rating: Schedule 40 – suitable for medium- to high-pressure piping systems
• ✅ Corrosion Resistance: Ideal for environments exposed to moisture, chlorides, and mild chemicals
• ✅ Applications: Approved for use in potable water systems, industrial piping, compressed air lines, and mechanical installations

Installation Guidelines

Apply PTFE tape or thread sealant to the male threads before installation. Use pipe wrenches on the unthreaded portion to avoid thread damage. Installation should follow local code and system pressure testing protocols. Proper alignment and torque control are essential for long-term sealing performance.

Typical Use Cases

304 stainless steel nipples are commonly used in potable water supply systems, chilled and hot water lines, chemical transport, HVAC systems, and food and beverage processing lines. Their resistance to rust and scale formation makes them suitable for continuous exposure to moisture or temperature fluctuation.

Material Characteristics

Type 304 stainless steel contains chromium and nickel, providing a balance of strength, ductility, and corrosion resistance. It performs reliably in non-marine environments and complies with NSF/ANSI 61 and 372 standards for potable water applications.

Technical Specifications

• Material Grade: 304 Stainless Steel
• Thread Type: ANSI/ASME B1.20.1 NPT Male x Male
• Wall Thickness: Schedule 40
• Standards: ASTM A312, ASTM A733, NSF/ANSI 61 & 372
• Available Lengths: Custom cut or standard pre-fabricated sizes

The 304 stainless steel nipple provides a corrosion-resistant, pressure-rated solution for joining threaded components in industrial and commercial piping systems. Suitable for high-performance applications, it ensures mechanical stability and compliance with plumbing and mechanical codes.