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Brass U-Bolt for 3" Pipe - 2.79" Width, 7.68" Length

Expert Overview

Engineered from high-grade brass, this robust U-bolt is designed for secure fastening of 3" diameter pipes. Its corrosion-resistant properties make it ideal for demanding environments, ensuring long-term structural integrity and reliability.

StandardASTM A106
MaterialBrass
FinishPassivated
GradeN/A
Inside Width ( A)2.79"
Inside Length ( B)7.68"
Thread Size1/2"-13

Detailed Engineering Specifications

Manufactured under strict quality controls, this brass U-bolt is precisely fabricated to accommodate 3" nominal pipe sizes. The inside width (A) measures 2.79 inches, while the inside length (B) is 7.68 inches, providing ample clearance and secure clamping. It features a robust 1/2"-13 UNC thread size for reliable fastening with standard nuts and washers. The inherent corrosion resistance of brass makes this U-bolt an exceptional choice for applications exposed to moisture, chemicals, or saltwater, preventing degradation and maintaining structural performance in plumbing, marine, and industrial settings.

🧊 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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🏆 Global Innovation Leader
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Certified:ISO 9001, ISO 14001
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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🛡️ 24/7 Application Support
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Certified:ISO 9001, IATF 16949
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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🛡️ Lifetime Return Policy
Green Manufacturing
🌱 Sustainable Logistics
Certified:ISO 9001 Compliant

Certifications & Compliance

RoHS Compliant:Yes
REACH Compliant:Yes
Material Traceability:Available on Request
DFARS Compliant:N/A

Installation Procedure

1. Position the U-bolt around the 3" pipe, ensuring it rests evenly on the pipe's surface. 2. Place the support structure or mounting surface against the pipe and thread the U-bolt legs through the pre-drilled holes. 3. Securely fasten the U-bolt by tightening the 1/2"-13 nuts and washers on both legs, ensuring even pressure distribution for optimal stability.

Equivalent Standards (Cross-Reference)

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

Mechanical Properties

Tensile StrengthStandard Commercial Spec
Yield StrengthStandard Commercial Spec
HardnessVaries by specific batch

Chemical Composition

Copper (Cu)60.0 - 63.0%
Zinc (Zn)Balance
Lead (Pb)2.5 - 3.7%

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 / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using the wrong size U-bolt for the pipe diameter.Always verify the nominal pipe size and ensure the U-bolt's inside width is appropriate for a snug fit, typically slightly larger than the pipe's outer diameter.
Over-tightening or under-tightening the nuts.Tighten nuts evenly on both legs to achieve firm support without deforming the pipe or compromising the U-bolt's integrity. Refer to torque specifications if available.

Common Applications

  • Plumbing and pipe support systems
  • Marine and offshore installations
  • Chemical processing and industrial piping

⚠️ Engineering Warnings

  • Ensure material compatibility with the fluid or environment to prevent galvanic corrosion.
  • Regularly inspect U-bolts for signs of wear, corrosion, or loosening, especially in critical applications.

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 Brass U-Bolt, 3" Pipe made from?

A: This Brass U-Bolt, 3" Pipe is manufactured from Brass.

Q: What are the main applications?

A: Plumbing and pipe support systems, Marine and offshore installations, Chemical processing and industrial piping.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 2.79"B7.68"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.