Home > Pipe, Tubing, Hose & Fittings > Seamless Pipe, Schedule 80

3.5" Schedule 80 Carbon Steel Seamless Pipe | OD 5.761"

Expert Overview

This 3.5-inch Schedule 80 seamless carbon steel pipe offers superior strength and reliability for demanding industrial applications. Its robust construction ensures containment under high pressure and extreme conditions.

StandardISO 9001
MaterialCarbon Steel
FinishPassivated
GradeN/A
Pipe Size3.5"
Outside Diameter5.761"
Wall Thickness0.205"

Detailed Engineering Specifications

Built to exacting engineering tolerances, this 3.5" Schedule 80 seamless carbon steel pipe features a 5.761" outside diameter and a substantial 0.205" wall thickness. This robust configuration provides exceptional burst strength and resistance to crushing, making it ideal for high-pressure fluid and gas transport systems. Manufactured from high-quality carbon steel, it exhibits excellent weldability and machinability, ensuring seamless integration into complex piping networks across various industrial sectors. Its seamless construction eliminates the weak points inherent in welded pipes, guaranteeing integrity in severe operational environments.

🧊 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 beveled according to welding procedure specifications. 2. Align pipe sections accurately and secure with tack welds, maintaining concentricity and proper spacing. 3. Complete root, fill, and cap passes using appropriate welding consumables and techniques as per ASME B31.3 standards.

Equivalent Standards (Cross-Reference)

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

Mechanical Properties

Burst Pressure4x Working Pressure (Typical)
Working PressureSee Manufacturer Specs
Temperature Range-20°F to 400°F (-29°C to 204°C)

Chemical Composition

Carbon (C)0.28 - 0.55%
Manganese (Mn)0.60 - 0.90%
Phosphorus (P)0.04% max
Sulfur (S)0.05% max

Temperature & Environment Rating

Min Operating Temp
-20°F (-29°C)
Max Continuous Temp
400°F (204°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 / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using incorrect welding consumables for the carbon steel grade, leading to brittle welds or poor mechanical properties.Always refer to the material data sheet and welding procedure specification (WPS) for recommended filler metal classification for the specific carbon steel grade being used.
Inadequate cleaning of pipe ends prior to welding, resulting in inclusions and voids in the weld metal.Thoroughly degrease and grind the beveled pipe ends to a clean, bright metal surface before initiating tack or root welding.

Common Applications

  • High-pressure hydraulic systems
  • Steam and condensate lines
  • Petrochemical processing
  • Oil and gas extraction

⚠️ Engineering Warnings

  • Always consult ASME B31.3 for detailed piping code requirements and limitations.
  • Ensure proper material handling and storage to prevent damage or contamination.

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 Carbon Steel.

Q: What are the main applications?

A: High-pressure hydraulic systems, Steam and condensate lines, Petrochemical processing, Oil and gas extraction.

Technical Schematic

PIPE CROSS-SECTIONASTM A106 / ASME B36.10FLOWOD = 5.761"ID = 2.067"WALL0.205"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.