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

3" Carbon Steel U-Bolt | 4.47" Width | 7.41" Length | 1/2"-13 Thread

Expert Overview

Engineered for superior pipe support, this 3-inch carbon steel U-bolt offers robust, long-lasting performance. Its precise dimensions and high-strength material ensure secure and stable installation for critical infrastructure.

StandardISO 9001
MaterialCarbon Steel
FinishBlack Oxide
GradeN/A
Inside Width ( A)4.47"
Inside Length ( B)7.41"
Thread Size1/2"-13

Detailed Engineering Specifications

A high-performance industrial component, this Carbon Steel U-Bolt is specifically designed for securing 3-inch nominal pipe diameters. Featuring an Inside Width (A) of 4.47 inches and an Inside Length (B) of 7.41 inches, it provides ample clearance and structural integrity. The robust 1/2"-13 UNC thread size ensures a secure and reliable connection with appropriate fasteners, crucial for resisting vibration and tensile loads in demanding industrial applications such as chemical processing, oil and gas, and heavy manufacturing. Constructed from high-grade carbon steel, this U-bolt exhibits excellent tensile strength and durability, making it resistant to corrosion and mechanical stress under harsh operating conditions.

🧊 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. Clean the pipe surface and mounting area. 2. Position the U-bolt around the pipe and through the mounting surface or bracket. 3. Securely fasten with appropriate nuts and washers, tightening evenly on both legs to achieve uniform clamping pressure.

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

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
Using undersized or non-standard fasteners.Always use the specified 1/2"-13 UNC nuts and washers for optimal thread engagement and load-bearing capacity.
Uneven tightening of the U-bolt legs.Tighten nuts alternately and incrementally to ensure even pressure distribution around the pipe, preventing deformation or stress concentration.

Common Applications

  • Pipe support and anchoring in industrial piping systems
  • Securing conduit and structural members
  • Vibration dampening and strain relief in mechanical assemblies

⚠️ Engineering Warnings

  • Ensure compatibility with the pipe material and operating environment to prevent galvanic corrosion or material degradation.
  • Verify that the mounting surface or bracket can withstand the combined load of the pipe and its contents, plus dynamic forces.

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 support and anchoring in industrial piping systems, Securing conduit and structural members, Vibration dampening and strain relief in mechanical assemblies.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.47"B7.41"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.