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Brass U-Bolt for 3" Pipe - 1.56" Width, 3.07" Length

Expert Overview

This high-quality Brass U-Bolt is specifically designed for the secure fastening of 3-inch nominal diameter pipes. Its robust brass construction offers superior corrosion resistance and long-term reliability in various industrial settings.

StandardISO 9001
MaterialBrass
FinishPassivated
GradeN/A
Inside Width ( A)1.56"
Inside Length ( B)3.07"
Thread Size1/2"-13

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this U-bolt is engineered for optimal performance in plumbing and structural applications. Constructed from high-grade brass (UNS C26000 or equivalent), it exhibits excellent resistance to corrosion, particularly in marine or chemically aggressive environments. The inside width (A) measures 1.56 inches, accommodating standard 3-inch pipe dimensions, while the inside length (B) is 3.07 inches, providing ample clearance for pipe insulation or mounting hardware. The integrated 1/2"-13 UNC threads ensure a secure and robust fastening capability with compatible nuts and washers.

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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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🌱 100% Renewable Energy HQ
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."
Market Rank
🏆 #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 sits snugly against the pipe surface. 2. Slide a suitable mounting bracket or plate beneath the pipe, aligning the U-bolt legs through the designated holes. 3. Thread the provided or compatible nuts onto the U-bolt legs, tightening them evenly and securely to achieve the desired clamping force without over-compression.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardISO 9001

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 against the U-bolt's inside width specification (A) before installation. For a 3" pipe, an inside width of approximately 1.56" is critical.
Over-tightening the nuts, which can deform the pipe or bracket.Tighten nuts progressively and evenly. Use a torque wrench set to the manufacturer's recommended specification for the pipe material and mounting hardware to prevent damage.

Common Applications

  • Marine and Offshore Piping Systems
  • Chemical Processing and Industrial Plumbing
  • Structural Support for Conduits and Cables

⚠️ Engineering Warnings

  • Ensure all fasteners (nuts and washers) are made of compatible brass or stainless steel to prevent galvanic corrosion.
  • Regularly inspect U-bolt installations for signs of wear, corrosion, or loosening, especially in environments with vibration or significant temperature fluctuations.

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 and Offshore Piping Systems, Chemical Processing and Industrial Plumbing, Structural Support for Conduits and Cables.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 1.56"B3.07"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.