Home > U-Bolts > 304 Stainless Steel U-Bolt, 3" Pipe

304 Stainless Steel U-Bolt | 3" Pipe | 3.15" W x 5.44" L

Expert Overview

Engineered for robust pipe support, this 304 stainless steel U-bolt ensures secure fastening. Its precise dimensions and superior corrosion resistance make it ideal for demanding environments.

StandardASTM A106
Material304 Stainless Steel
FinishZinc Plated
GradeN/A
Inside Width ( A)3.15"
Inside Length ( B)5.44"
Thread Size1/2"-13

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this U-bolt is fabricated from premium 304 stainless steel, offering exceptional resistance to corrosion, oxidation, and pitting, even in harsh marine or chemical settings. Its internal dimensions are precisely engineered for a secure fit on 3-inch nominal pipes, with an inside width (A) of 3.15 inches and an inside length (B) of 5.44 inches. The robust 1/2"-13 UNC thread size provides substantial tensile strength for reliable clamping force, ensuring long-term structural integrity in critical infrastructure and industrial installations.

🧊 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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🏆 #1 Industrial Supply Standard
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🚀 US Military Approved
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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 pipe, ensuring it sits flush against the mounting surface. 2. Thread the nuts onto the U-bolt legs, hand-tightening initially. 3. Using appropriate wrenches, tighten the nuts to the specified torque, ensuring even pressure on both sides.

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)18.0 - 20.0%
Nickel (Ni)8.0 - 10.5%
Manganese (Mn)2.00% max

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1400°F (760°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 / SaltwaterGood
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Overtightening U-bolts, which can deform the pipe or the U-bolt itself.Always consult torque specifications for your specific application and use a calibrated torque wrench.
Using the wrong size U-bolt for the pipe diameter, leading to a loose or compromised fit.Verify the pipe's nominal and actual outside diameter and select a U-bolt with compatible internal dimensions.

Common Applications

  • Marine hardware and shipbuilding
  • Chemical processing equipment
  • Food and beverage industry piping
  • Offshore oil and gas infrastructure
  • Wastewater treatment facilities

⚠️ Engineering Warnings

  • Ensure compatibility of U-bolt material with the fluid or environment it will be exposed to.
  • Regularly inspect U-bolts for signs of corrosion or structural fatigue, especially in aggressive 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 304 Stainless Steel U-Bolt, 3" Pipe made from?

A: This 304 Stainless Steel U-Bolt, 3" Pipe is manufactured from 304 Stainless Steel.

Q: What are the main applications?

A: Marine hardware and shipbuilding, Chemical processing equipment, Food and beverage industry piping, Offshore oil and gas infrastructure, Wastewater treatment facilities.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 3.15"B5.44"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.