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

Seamless Carbon Steel Pipe, Sch 80, 3.8" NPS, 5.653" OD

Expert Overview

This Schedule 80 seamless carbon steel pipe delivers exceptional strength and reliability for critical fluid and gas transfer in rigorous industrial settings. Engineered for high-pressure, high-temperature applications.

StandardASTM A106
MaterialCarbon Steel
FinishZinc Plated
GradeN/A
Pipe Size3.8"
Outside Diameter5.653"
Wall Thickness0.257"

Detailed Engineering Specifications

Designed for demanding industrial environments, this 3.8" NPS (Nominal Pipe Size) seamless carbon steel pipe boasts an outside diameter of 5.653" and a robust wall thickness of 0.257", conforming to Schedule 80 specifications. Manufactured from high-quality carbon steel, it offers superior tensile strength and impact resistance, making it ideal for applications involving corrosive fluids, high pressures, and extreme temperatures. Its seamless construction eliminates weld-related weaknesses, ensuring maximum integrity for critical systems in sectors such as oil and gas, chemical processing, and heavy manufacturing.

🧊 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. Verify pipe dimensions and material grade against project specifications. 2. Clean both the pipe ends and the mating fitting thoroughly to remove any debris or contaminants. 3. Install using appropriate welding, threading, or grooving techniques as dictated by the system design and applicable industry codes.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASTM A106

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 / ExposedExcellent
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Incorrectly matching pipe size to fittingsAlways confirm NPS and Schedule to ensure compatibility with all connected components and ensure proper connection integrity.
Insufficient cleaning of pipe endsThoroughly clean pipe ends to prevent weld defects or compromised thread engagement, which can lead to leaks or premature failure.

Common Applications

  • High-pressure fluid conveyance in chemical plants
  • Oil and gas pipeline systems
  • Hydraulic power transmission lines

⚠️ Engineering Warnings

  • Ensure compliance with ASME B31.1/B31.3 or equivalent codes for all installations.
  • Proper handling and storage are essential to prevent damage or contamination of the pipe ends.

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 fluid conveyance in chemical plants, Oil and gas pipeline systems, Hydraulic power transmission lines.

Technical Schematic

PIPE CROSS-SECTIONASTM A106 / ASME B36.10FLOWOD = 5.653"ID = 2.067"WALL0.257"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.