Home > Pipe, Tubing, Hose & Fittings > Seamless Pipe, Schedule 40

4.3" Sch 40 316 Stainless Steel Seamless Pipe

Expert Overview

This 4.3" Schedule 40 seamless pipe, crafted from premium 316 stainless steel, offers superior corrosion resistance and robust mechanical strength for critical fluid and gas transport.

StandardASTM A106
Material316 Stainless Steel
FinishPlain
GradeN/A
Pipe Size4.3"
Outside Diameter4.413"
Wall Thickness0.387"

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this 4.3" nominal pipe size (NPS) seamless pipe boasts an outside diameter of 4.413" and a substantial wall thickness of 0.387", adhering to Schedule 40 standards. Manufactured from high-grade 316 stainless steel, it delivers exceptional resistance to a wide array of corrosive media, including chlorides and acids, making it ideal for offshore, chemical processing, and high-temperature environments. The seamless construction ensures a leak-proof system and uniform wall thickness, crucial for high-pressure integrity and preventing stress concentrations.

🧊 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, deburred, and free of any contaminants. 2. Apply appropriate lubricant to the pipe threads or bevel for welding. 3. Carefully align and connect the pipe to fittings or adjacent pipe sections, ensuring proper thread engagement or weld seam alignment.

Equivalent Standards (Cross-Reference)

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

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 incorrect pipe joining methods for the specific application's pressure and temperature requirements.Consult application specifications and relevant industry codes (e.g., ASME B31.3) to select appropriate welding procedures, threading compounds, or flanging techniques.
Failure to properly clean pipe ends before welding or threading, leading to potential contamination and compromised joint integrity.Thoroughly degrease and remove any scale or foreign material from pipe ends using approved cleaning agents and methods prior to any joining operation.

Common Applications

  • Chemical processing pipelines
  • Offshore oil and gas infrastructure
  • High-temperature fluid transfer systems

⚠️ Engineering Warnings

  • Ensure compatibility of fluid or gas media with 316 stainless steel, especially in extreme concentrations or at elevated temperatures.
  • Always adhere to ASME B31.3 or applicable piping codes for installation and welding procedures to guarantee system integrity and 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 316 Stainless Steel.

Q: What are the main applications?

A: Chemical processing pipelines, Offshore oil and gas infrastructure, High-temperature fluid transfer systems.

Technical Schematic

PIPE CROSS-SECTIONASTM A106 / ASME B36.10FLOWOD = 4.413"ID = 2.067"WALL0.387"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.