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316 Stainless Steel Seamless Pipe, Sch 40, 4" NPS

Expert Overview

This 4.0" NPS, Schedule 40 seamless pipe, fabricated from premium 316 stainless steel, offers superior corrosion resistance and mechanical integrity for critical applications.

StandardASTM A106
Material316 Stainless Steel
FinishPlain
GradeN/A
Pipe Size4.0"
Outside Diameter1.521"
Wall Thickness0.470"

Detailed Engineering Specifications

Specified by design engineers worldwide, this 4.0" NPS seamless pipe conforms to ASTM A312 standards for seamless stainless steel pipe. Constructed from high-grade 316 stainless steel, it exhibits exceptional resistance to pitting and crevice corrosion in aggressive environments due to its molybdenum content. With a nominal outside diameter of 1.521" and a robust wall thickness of 0.470", this pipe delivers a minimum burst pressure rating suitable for high-pressure fluid and gas conveyance systems. Its seamless construction ensures uniform wall thickness and eliminates potential leak paths associated with welded pipes, making it ideal for demanding chemical processing, marine, and pharmaceutical applications.

🧊 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. Ensure pipe ends are clean, free from burrs, and properly beveled if required for welding. 3. Utilize appropriate joining methods (e.g., welding, flanging) according to industry best practices and applicable codes.

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 incompatible welding consumables for 316 stainless steel.Employ welding electrodes or filler metals specifically designed for 316 stainless steel to maintain corrosion resistance and mechanical properties.
Improper cleaning of pipe ends before joining.Thoroughly degrease and clean pipe ends with a suitable solvent to remove all contaminants that could compromise weld integrity or introduce impurities.

Common Applications

  • Chemical processing industries
  • Marine and offshore environments
  • Pharmaceutical manufacturing
  • Food and beverage processing
  • High-purity fluid transfer systems

⚠️ Engineering Warnings

  • Ensure compatibility of fluid media with 316 stainless steel to prevent unexpected corrosion.
  • Observe proper handling procedures to avoid introducing contamination during installation.

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 industries, Marine and offshore environments, Pharmaceutical manufacturing, Food and beverage processing, High-purity fluid transfer systems.

Technical Schematic

PIPE CROSS-SECTIONASTM A106 / ASME B36.10FLOWOD = 1.521"ID = 2.067"WALL0.470"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.