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

3" Carbon Steel U-Bolt | 3.25" Width x 2.94" Length | 1/2"-13 Thread

Expert Overview

Engineered for robust pipe securing, this 3" Carbon Steel U-Bolt offers superior strength and durability. Its precise dimensions ensure a snug fit, providing reliable support for critical infrastructure and industrial applications.

StandardASTM A106
MaterialCarbon Steel
FinishZinc Plated
GradeN/A
Inside Width ( A)3.25"
Inside Length ( B)2.94"
Thread Size1/2"-13

Detailed Engineering Specifications

Manufactured under strict quality controls, this 3" U-Bolt is fabricated from high-grade carbon steel, ensuring exceptional tensile strength and resistance to deformation under load. Featuring an inside width (A) of 3.25 inches and an inside length (B) of 2.94 inches, it is designed to accommodate standard 3-inch nominal pipes. The robust 1/2"-13 UNC threads provide secure fastening capabilities for a wide range of mounting hardware, making it ideal for securing conduit, pipework, and structural components in demanding environments.

🧊 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:Yes

Installation Procedure

1. Position the U-bolt around the pipe, ensuring it is centered and the pipe is properly supported. 2. Thread the accompanying nuts onto the U-bolt legs until snug. 3. Tighten nuts alternately and evenly to achieve the required clamping force, avoiding 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

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 / ExposedExcellent
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using an undersized or oversized U-bolt for the pipe diameter.Always verify the nominal pipe size against the U-bolt's internal dimensions to ensure a secure and proper fit.
Uneven tightening of the nuts, leading to stress concentration on one side of the U-bolt.Tighten nuts alternately in a crisscross pattern to distribute the clamping force evenly.

Common Applications

  • Pipe and conduit support in plumbing and HVAC systems
  • Securing structural components in construction and fabrication
  • Vibration dampening and load bearing in industrial machinery

⚠️ Engineering Warnings

  • Ensure proper thread engagement to prevent stripping.
  • Do not exceed the recommended load capacity for the U-bolt.

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: Pipe and conduit support in plumbing and HVAC systems, Securing structural components in construction and fabrication, Vibration dampening and load bearing in industrial machinery.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 3.25"B2.94"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.