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

3" Brass U-Bolt | 2.71" Width, 4.80" Length | Corrosion Resistant

Expert Overview

This heavy-duty Brass U-Bolt provides robust and corrosion-resistant pipe support for 3" nominal diameter pipes. Precisely manufactured to ensure a secure and long-lasting installation.

StandardASME B18
MaterialBrass
FinishAnodized
GradeN/A
Inside Width ( A)2.71"
Inside Length ( B)4.80"
Thread Size1/2"-13

Detailed Engineering Specifications

Built to exacting engineering tolerances, this 1/2"-13 threaded Brass U-Bolt is designed for 3" nominal pipe. Its internal dimensions measure 2.71" (A) in width and 4.80" (B) in length, ensuring a snug fit. Crafted from high-grade brass (typically UNS C26000 or similar), it offers exceptional resistance to corrosion, particularly in marine, chemical processing, and potable water applications. The material's inherent strength and ductility allow for reliable clamping without compromising the pipe's integrity. Each U-bolt undergoes rigorous quality checks to guarantee dimensional accuracy and material composition.

🧊 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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Certified:ISO 9001, IATF 16949
McMaster-CarrEst. 1901
USA🇺🇸
"Complete industrial supply."
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🏆 #1 Industrial Supply Standard
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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 straddles the pipe evenly. 2. Place the accompanying backing plate (if applicable) and thread the nuts onto the U-bolt's threaded ends. 3. Tighten the nuts alternately and evenly to achieve the specified clamping force, avoiding over-tightening which could deform the pipe or U-bolt.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASME B18

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 U-bolt size for the pipe's nominal diameter.Always verify the pipe's nominal diameter and compare it to the U-bolt's internal dimensions (A) to ensure a proper fit.
Uneven tightening of the nuts, leading to biased stress on the pipe and U-bolt.Tighten nuts in an alternating pattern, gradually increasing torque until the desired tightness is achieved, ensuring even pressure distribution.
Using steel U-bolts in corrosive environments where brass is specified.Select U-bolts made from materials specifically suited to the environmental conditions. Brass is chosen for its superior corrosion resistance in certain applications.

Common Applications

  • Marine hardware and plumbing
  • Chemical processing equipment support
  • Potable water system installations
  • Exhaust system clamping
  • General pipe anchoring and support

⚠️ Engineering Warnings

  • Ensure all mating hardware (nuts, washers) is also made of brass or a compatible corrosion-resistant material to prevent galvanic corrosion.
  • Do not exceed the torque specifications for this U-bolt, as over-tightening can lead to material fatigue or deformation.

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 hardware and plumbing, Chemical processing equipment support, Potable water system installations, Exhaust system clamping, General pipe anchoring and support.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 2.71"B4.80"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.