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Brass U-Bolt for 3" Pipe - 4.41" Width x 6.72" Length

Expert Overview

Engineered for superior performance, this brass U-bolt securely fastens 3" diameter pipes. Its robust construction ensures reliable support and corrosion resistance in harsh industrial settings.

StandardASTM A106
MaterialBrass
FinishZinc Plated
GradeN/A
Inside Width ( A)4.41"
Inside Length ( B)6.72"
Thread Size1/2"-13

Detailed Engineering Specifications

Designed for demanding industrial environments, this U-bolt is precision-machined from high-grade brass, offering exceptional resistance to corrosion and chemical degradation. The inside width of 4.41 inches and inside length of 6.72 inches are optimized for standard 3-inch nominal pipe sizes, ensuring a snug and secure fit. Featuring a robust 1/2"-13 UNC thread size on each leg, it provides ample thread engagement for secure fastening with compatible nuts (sold separately). This material choice is ideal for applications exposed to moisture, saltwater, or mild chemical solutions, guaranteeing long-term structural integrity and operational reliability.

🧊 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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🌱 Climate Positive 2030
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 surface. 2. Place the provided or compatible washers (not included) onto each threaded leg of the U-bolt. 3. Thread the appropriate nuts (not included) onto the U-bolt legs and tighten them evenly using a wrench until secure, but avoid overtightening.

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 / ExposedExcellent
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 pipe's nominal size and consult product specifications to ensure a proper fit. This U-bolt is designed for 3" nominal pipe.
Overtightening the nuts, which can deform the pipe or the U-bolt.Tighten nuts evenly on both legs until the U-bolt is snug and provides firm support. Avoid excessive force that could cause damage.
Failing to use washers between the nut and the mounting surface.Always use appropriate washers to distribute the clamping force evenly and prevent damage to the mounting surface or the nut.

Common Applications

  • Marine pipe support
  • Chemical processing systems
  • Plumbing and HVAC installations in corrosive environments
  • Food and beverage industry piping

⚠️ Engineering Warnings

  • Ensure compatibility of nuts and washers with the U-bolt thread size (1/2"-13 UNC).
  • Brass can be susceptible to dezincification in certain aggressive environments; confirm material suitability for specific chemical exposures.

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 systems, Plumbing and HVAC installations in corrosive environments, Food and beverage industry piping.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.41"B6.72"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.