Home > U-Bolts > Brass U-Bolt, 3" Pipe

Brass U-Bolt 3" Pipe | 3.65" Width | 5.70" Length | 1/2"-13 Thread

Expert Overview

Engineered from premium brass, this U-bolt offers superior corrosion resistance for 3-inch pipe support. Its robust construction and precise dimensions ensure secure and long-lasting installations in demanding environments.

StandardASTM A106
MaterialBrass
FinishPlain
GradeN/A
Inside Width ( A)3.65"
Inside Length ( B)5.70"
Thread Size1/2"-13

Detailed Engineering Specifications

Specified by design engineers worldwide, this Brass U-Bolt is meticulously manufactured to accommodate 3-inch nominal pipe sizes. It features an internal width (A) of 3.65 inches and an internal length (B) of 5.70 inches, providing ample clearance and secure clamping. The robust 1/2"-13 UNC threading ensures compatibility with standard nuts and washers, facilitating a strong and reliable connection. The inherent properties of brass, including excellent corrosion resistance and non-sparking characteristics, make it ideal for marine, chemical processing, and plumbing applications where material integrity and safety 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."
Market Rank
🏆 Global Innovation Leader
Industry Approvals
🚀 Aviation & Medical Approved
Warranty & Support
🛡️ Premium Performance Guarantee
Green Manufacturing
🌱 100% Renewable Energy HQ
Certified:ISO 9001, ISO 14001
LoctiteEst. 1953
Germany🇩🇪
"Industrial adhesives and sealants."
Market Rank
🏆 #1 Global Adhesives
Industry Approvals
🚀 Formula 1 & Aerospace OEM
Warranty & Support
🛡️ 24/7 Application Support
Green Manufacturing
🌱 Climate Positive 2030
Certified:ISO 9001, IATF 16949
McMaster-CarrEst. 1901
USA🇺🇸
"Complete industrial supply."
Market Rank
🏆 #1 Industrial Supply Standard
Industry Approvals
🚀 US Military Approved
Warranty & Support
🛡️ 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 pipe, ensuring the pipe is centered within the curved section. 2. Place a flat washer on each leg of the U-bolt, followed by a lock washer (if applicable). 3. Thread the corresponding nuts onto each leg of the U-bolt, tightening them evenly and securely against the mounting surface. 4. Periodically check and re-tighten nuts to maintain optimal clamping force, especially after initial installation or in applications with vibration.

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
Selecting a U-bolt with insufficient inside width for the pipe's outer diameter.Always verify the pipe's actual outer diameter and select a U-bolt with an inside width that provides a snug fit without excessive compression.
Over-tightening the nuts, which can deform the pipe or the U-bolt itself.Tighten nuts until snug and secure. Use a torque wrench to apply the recommended torque for the thread size and application, if specified.
Using standard steel U-bolts in corrosive environments where brass is required.Ensure the material selection aligns with the environmental conditions. Brass offers superior corrosion resistance compared to standard steel in many aggressive media.

Common Applications

  • Marine pipe support
  • Chemical processing equipment plumbing
  • Plumbing and HVAC systems in corrosive environments
  • Electrical conduit support

⚠️ Engineering Warnings

  • Ensure proper thread engagement to prevent stripping.
  • Do not exceed the recommended weight load capacity for the U-bolt and its mounting system.
  • For environments with high vibration, consider using lock washers or alternative locking mechanisms.

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: Marine pipe support, Chemical processing equipment plumbing, Plumbing and HVAC systems in corrosive environments, Electrical conduit support.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 3.65"B5.70"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.