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316 Stainless Steel U-Bolt 3" Pipe | 4.44"W x 3.26"L

Expert Overview

Engineered for superior corrosion resistance, this 316 stainless steel U-bolt is designed to securely fasten 3-inch diameter pipes in demanding industrial applications. Its robust construction ensures long-term integrity and reliability.

StandardASTM A106
Material316 Stainless Steel
FinishGalvanized
GradeN/A
Inside Width ( A)4.44"
Inside Length ( B)3.26"
Thread Size1/2"-13

Detailed Engineering Specifications

A high-performance industrial component, this U-bolt is fabricated from marine-grade 316 stainless steel, renowned for its exceptional resistance to pitting and crevice corrosion, particularly in chloride-rich environments. It features an inside width (A) of 4.44 inches and an inside length (B) of 3.26 inches, providing a secure and snug fit for 3-inch nominal pipe. The standard 1/2"-13 UNC thread size ensures compatibility with a wide range of standard nuts and washers for reliable fastening. This material selection is critical for applications involving saltwater exposure, chemical processing, and food/beverage industries where hygiene and non-reactivity are paramount.

🧊 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.

3MEst. 1902
USA🇺🇸
"Science applied to life."
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LoctiteEst. 1953
Germany🇩🇪
"Industrial adhesives and sealants."
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🏆 #1 Global Adhesives
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🚀 Formula 1 & Aerospace OEM
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McMaster-CarrEst. 1901
USA🇺🇸
"Complete industrial supply."
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Certified:ISO 9001 Compliant

Certifications & Compliance

RoHS Compliant:Yes
REACH Compliant:Yes
Material Traceability:Available on Request
DFARS Compliant:Yes

Installation Procedure

1. Position the U-bolt around the 3-inch pipe, ensuring the pipe rests evenly within the curve. 2. Place the U-bolt's threaded legs through the mounting surface or appropriate bracket. 3. Securely fasten with washers and nuts, tightening them evenly to achieve the desired clamping force without over-stressing the pipe or component.

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 the wrong U-bolt size for the pipe diameter.Always verify the nominal pipe size against the U-bolt's inside dimensions (A and B) before installation to ensure a proper fit.
Improper tightening of nuts, leading to pipe deformation or insufficient clamping.Tighten nuts incrementally and evenly on both legs to distribute pressure uniformly, avoiding over-tightening.
Using standard carbon steel U-bolts in corrosive environments.Select 316 stainless steel for applications exposed to saltwater, chemicals, or high humidity to prevent premature corrosion and failure.

Common Applications

  • Marine and offshore structures
  • Chemical processing plants
  • Food and beverage manufacturing
  • Wastewater treatment facilities
  • Plumbing and piping support systems

⚠️ Engineering Warnings

  • Ensure proper torque is applied during installation to avoid damaging the pipe or mounting hardware.
  • Regularly inspect U-bolts for signs of wear, corrosion, or loosening, especially in harsh environments.

Alternative Products to Consider

Premium U-Bolts equivalentHigher corrosion resistance (316 SS)
Economy U-Bolts optionLower cost for non-critical indoor applications

Frequently Asked Questions

Q: What is the 316 Stainless Steel U-Bolt, 3" Pipe made from?

A: This 316 Stainless Steel U-Bolt, 3" Pipe is manufactured from 316 Stainless Steel.

Q: What are the main applications?

A: Marine and offshore structures, Chemical processing plants, Food and beverage manufacturing, Wastewater treatment facilities, Plumbing and piping support systems.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.44"B3.26"C1-1/4"Thread: 1/2"-13 | Both Legs2 Hex Nuts Included

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.