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304 Stainless Steel Seamless Pipe | Schedule 40 | 3.9" Size

Expert Overview

This Schedule 40 seamless pipe, crafted from high-grade 304 stainless steel, offers superior structural integrity and corrosion resistance. Its precise dimensions ensure reliable performance in critical fluid and gas transfer systems.

StandardDIN 933
Material304 Stainless Steel
FinishZinc Plated
GradeN/A
Pipe Size3.9"
Outside Diameter4.838"
Wall Thickness0.392"

Detailed Engineering Specifications

A high-performance industrial component, this 3.9" nominal size Schedule 40 seamless pipe boasts an exact outside diameter of 4.838" and a substantial wall thickness of 0.392". Fabricated from 304 stainless steel, it exhibits excellent resistance to a wide range of corrosive media, making it ideal for applications requiring high strength, durability, and hygiene. Its seamless construction eliminates weld seams, preventing potential leak paths and ensuring consistent wall thickness for uniform stress distribution under pressure. This material is commonly specified for chemical processing, food and beverage, pharmaceutical, and general industrial fluid handling where reliability and longevity are paramount.

🧊 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 pipe ends are clean, free of debris, and properly chamfered for welding or fitting. 2. Align pipe sections carefully to prevent stress during joining. 3. Securely weld or attach fittings according to industry best practices and relevant codes.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardDIN 933

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
Using the wrong cutting tool, leading to deformation of the pipe end.Employ abrasive cut-off wheels or specialized pipe saws designed for stainless steel to achieve clean, precise cuts without deforming the pipe.
Inadequate cleaning of pipe ends prior to welding, resulting in weld contamination and reduced integrity.Thoroughly degrease and remove any mill scale or oxides from the pipe ends using stainless steel brushes or grinding discs before welding.

Common Applications

  • Chemical Processing Pipelines
  • Food and Beverage Transfer Systems
  • Pharmaceutical Manufacturing Equipment
  • General Industrial Fluid Handling

⚠️ Engineering Warnings

  • Ensure compatibility of the 304 stainless steel with the specific fluid or gas being transported to prevent premature corrosion.
  • Adhere to all applicable safety regulations and welding codes during installation to guarantee system integrity and personnel safety.

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 Transfer Systems, Pharmaceutical Manufacturing Equipment, General Industrial Fluid Handling.

Technical Schematic

PIPE CROSS-SECTIONASTM A106 / ASME B36.10FLOWOD = 4.838"ID = 2.067"WALL0.392"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.