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4" Schedule 40 304 Stainless Steel Seamless Pipe

Expert Overview

Engineered for superior performance, this 4.0" Schedule 40 seamless pipe is constructed from high-grade 304 stainless steel for exceptional corrosion resistance and durability.

StandardASME B18
Material304 Stainless Steel
FinishAnodized
GradeN/A
Pipe Size4.0"
Outside Diameter5.127"
Wall Thickness0.265"

Detailed Engineering Specifications

Built to exacting engineering tolerances, this 4.0" nominal size seamless pipe features an outside diameter of 5.127" and a wall thickness of 0.265", conforming to Schedule 40 specifications. Manufactured from 304 stainless steel, it offers excellent resistance to a wide range of corrosive media, including many acids, and maintains structural integrity at elevated temperatures. Its seamless construction eliminates weld seams, ensuring uniform strength and preventing potential leak paths, making it ideal for demanding fluid conveyance systems.

🧊 Download 3D CAD Model (.STEP)

Verified Global OEM Partners

This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.

VictaulicEst. 1919
USA🇺🇸
"Mechanical pipe joining solutions."
Market Rank
🏆 #1 Grooved Piping System
Industry Approvals
🚀 Global Fire & HVAC Approved
Warranty & Support
🛡️ Lifetime Integrity Guarantee
Green Manufacturing
🌱 100% Recycled Steel
Certified:ISO 9001, FM, UL
SwagelokEst. 1947
USA🇺🇸
"High-purity tube fittings."
Market Rank
🏆 #1 High-Purity Fluid Systems
Industry Approvals
🚀 Semiconductor Approved
Warranty & Support
🛡️ Lifetime Limited Warranty
Green Manufacturing
🌱 Zero Leakage Promise
Certified:ISO 9001, PED
NibcoEst. 1904
USA🇺🇸
"Flow control and pipe fittings."
Market Rank
🏆 Top 5 Flow Control
Industry Approvals
🚀 Commercial Plumbing Approved
Warranty & Support
🛡️ 5-Year Limited Warranty
Green Manufacturing
🌱 Lead-Free Pioneer
Certified:ISO 9001, NSF/ANSI 61

Certifications & Compliance

RoHS Compliant:Yes
REACH Compliant:Yes
Material Traceability:Available on Request
DFARS Compliant:Yes

Installation Procedure

1. Ensure proper pipe preparation, including deburring and cleaning of cut ends. 2. Utilize appropriate pipe joining methods such as welding, flanging, or threaded connections, ensuring compatibility with 304 stainless steel. 3. Verify alignment and support of the piping system to prevent stress concentrations and ensure long-term integrity.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASME B18

Mechanical Properties

Tensile Strength75,000 psi (515 MPa)
Yield Strength30,000 psi (205 MPa)
Elongation in 2 in.40% min
HardnessRockwell B95 max

Chemical Composition

Carbon (C)0.08% max
Chromium (Cr)18.0 - 20.0%
Nickel (Ni)8.0 - 10.5%
Manganese (Mn)2.00% max

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1400°F (760°C)
Thermal Expansion
Typical for Material Class

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
StandardVaries by dimensionContact Sales

Corrosion Resistance Guide

EnvironmentRating
Indoor / DryExcellent
Outdoor / ExposedExcellent
Marine / SaltwaterGood
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Incompatible joining materials or methods for 304 stainless steel.Always use welding consumables, sealants, or threading compounds specifically rated for 304 stainless steel to prevent galvanic corrosion and ensure a secure, lasting joint.
Insufficient pipe support leading to sag or stress on connections.Install adequate pipe hangers and supports at prescribed intervals to maintain proper alignment and prevent excessive strain on the pipe and its fittings.

Common Applications

  • Chemical processing pipelines
  • Food and beverage production systems
  • High-purity fluid transfer in pharmaceutical industries
  • Marine and offshore applications

⚠️ Engineering Warnings

  • Ensure compatibility of all associated fittings and joining materials with 304 stainless steel.
  • Avoid aggressive cleaning agents or abrasive materials that could compromise the passivation layer of the stainless steel, reducing corrosion resistance.

Alternative Products to Consider

Premium Pipe, Tubing, Hose & Fittings equivalentHigher corrosion resistance (316 SS)
Economy Pipe, Tubing, Hose & Fittings optionLower cost for non-critical indoor applications

Frequently Asked Questions

Q: What is the Seamless Pipe, Schedule 40 made from?

A: This Seamless Pipe, Schedule 40 is manufactured from 304 Stainless Steel.

Q: What are the main applications?

A: Chemical processing pipelines, Food and beverage production systems, High-purity fluid transfer in pharmaceutical industries, Marine and offshore applications.

Technical Schematic

PIPE CROSS-SECTIONASTM A106 / ASME B36.10FLOWOD = 5.127"ID = 2.067"WALL0.265"MAX WORKING PRESSURE: 2,500 psiSeamless Construction — Uniform Wall Thickness

Torque Specifications

⚡ UNIT CONVERTER

Conversion factor: 1 ft-lb ≈ 1.356 Nm

Verified Compatibility

StatusMating ComponentStandardTorque SpecEngineering Notes
No verified compatibility data found for this component.