Home > U-Bolts > Carbon Steel U-Bolt, 3" Pipe

3" Carbon Steel U-Bolt | 4.88" Width | 1/2"-13 Thread

Expert Overview

Engineered for superior pipe support, this 3-inch carbon steel U-bolt provides a secure and durable fastening solution. Its robust construction ensures long-lasting performance in demanding industrial environments.

StandardASME B18
MaterialCarbon Steel
FinishPassivated
GradeN/A
Inside Width ( A)4.88"
Inside Length ( B)5.70"
Thread Size1/2"-13

Detailed Engineering Specifications

Manufactured under strict quality controls, this U-bolt is constructed from high-grade carbon steel, offering excellent tensile strength and corrosion resistance for long-term application. The precise dimensions, with an inside width (A) of 4.88 inches and an inside length (B) of 5.70 inches, are designed to accommodate standard 3-inch nominal pipe sizes. The 1/2"-13 UNC thread size ensures compatibility with standard nuts and washers for a secure and reliable installation. This specification guarantees optimal load-bearing capacity and structural integrity for various pipe hanging and supporting applications.

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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:Yes

Installation Procedure

1. Position the U-bolt around the pipe, ensuring it straddles the pipe evenly. 2. Place the U-bolt over the mounting surface or support structure. 3. Secure the U-bolt by tightening the nuts onto the threaded legs, applying even pressure on both sides.

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

Carbon (C)0.28 - 0.55%
Manganese (Mn)0.60 - 0.90%
Phosphorus (P)0.04% max
Sulfur (S)0.05% max

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
Overtightening the nuts, potentially deforming the pipe or the U-bolt.Tighten nuts to a snug fit, then an additional quarter to half turn. Avoid excessive force; consult torque specifications if available.
Using incorrect thread size nuts, leading to a loose or insecure connection.Always verify that the nuts used match the 1/2"-13 thread size of the U-bolt.

Common Applications

  • Plumbing and Piping Systems
  • Conduit and Cable Support
  • HVAC Ductwork Attachment

⚠️ Engineering Warnings

  • Ensure proper thread engagement to prevent stripping or failure.
  • Inspect U-bolt for any damage or corrosion before installation.

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 Carbon Steel U-Bolt, 3" Pipe made from?

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

Q: What are the main applications?

A: Plumbing and Piping Systems, Conduit and Cable Support, HVAC Ductwork Attachment.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.88"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.