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4" Sch 80 316 Stainless Steel Seamless Pipe - 3.74" OD

Expert Overview

This 4" Schedule 80 seamless pipe, crafted from high-grade 316 stainless steel, offers exceptional corrosion resistance and structural integrity for demanding industrial environments. Its precise dimensions ensure reliable performance in critical fluid and gas transfer systems.

StandardISO 9001
Material316 Stainless Steel
FinishGalvanized
GradeN/A
Pipe Size4.0"
Outside Diameter3.740"
Wall Thickness0.139"

Detailed Engineering Specifications

A proven choice for industrial professionals, this 4.0" nominal pipe size (NPS) seamless pipe features a precise 3.740" outside diameter and a robust 0.139" wall thickness, conforming to Schedule 80 specifications. Manufactured from premium 316 stainless steel, it exhibits superior resistance to pitting and crevice corrosion, particularly in chloride-rich environments, and maintains excellent mechanical strength at elevated temperatures. This material composition makes it ideal for applications involving aggressive chemicals, high pressures, and extreme temperatures, ensuring longevity and operational safety in chemical processing, marine, and pharmaceutical industries.

🧊 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. Inspect pipe ends for any damage or foreign material. 2. Ensure compatibility of fittings and joining methods with 316 stainless steel. 3. Apply appropriate lubricant and carefully assemble connections, tightening to recommended torque specifications.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardISO 9001

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)16.0 - 18.0%
Nickel (Ni)10.0 - 14.0%
Molybdenum (Mo)2.0 - 3.0%

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1500°F (815°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 / SaltwaterExcellent
Chemical / AcidicGood

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using incompatible joining methods (e.g., welding with incorrect filler material) that can compromise corrosion resistance.Always use filler materials specifically recommended for 316 stainless steel and follow approved welding procedures to maintain material integrity.
Improperly cleaning pipe ends before connection, leading to leaks or reduced joint strength.Thoroughly clean all pipe ends and fittings with a degreaser and ensure they are dry before assembly.

Common Applications

  • Chemical Processing and Petrochemical Plants
  • Marine and Offshore Applications
  • Pharmaceutical and Food & Beverage Industries
  • High-Pressure Fluid Transfer Systems

⚠️ Engineering Warnings

  • Ensure proper handling to prevent scratching or damage to the surface, which can initiate corrosion.
  • Verify system pressure and temperature ratings against the pipe's capabilities to prevent failure.

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 80 made from?

A: This Seamless Pipe, Schedule 80 is manufactured from 316 Stainless Steel.

Q: What are the main applications?

A: Chemical Processing and Petrochemical Plants, Marine and Offshore Applications, Pharmaceutical and Food & Beverage Industries, High-Pressure Fluid Transfer Systems.

Technical Schematic

PIPE CROSS-SECTIONASTM A106 / ASME B36.10FLOWOD = 3.740"ID = 2.067"WALL0.139"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.