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

3" Carbon Steel U-Bolt | 3.15" Width x 5.16" Length | Heavy Duty

Expert Overview

Engineered for demanding environments, this 3" carbon steel U-bolt provides secure, reliable support for pipes and conduits. Its robust construction ensures long-term stability in industrial settings.

StandardASTM A106
MaterialCarbon Steel
FinishGalvanized
GradeN/A
Inside Width ( A)3.15"
Inside Length ( B)5.16"
Thread Size1/2"-13

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this carbon steel U-bolt is designed to provide superior structural integrity for 3" nominal pipe sizes. With an inside width (A) precisely manufactured to 3.15 inches and an inside length (B) of 5.16 inches, it ensures a snug and secure fit around the pipe's outer diameter. The robust 1/2"-13 UNC thread size accommodates standard heavy-duty nuts, offering substantial clamping force for unwavering support. Crafted from high-grade carbon steel, it exhibits excellent tensile strength and durability, resisting deformation under significant load and environmental stress. This U-bolt is the optimal choice for seismic bracing, heavy conduit runs, and supporting critical infrastructure where reliability is paramount.

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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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LoctiteEst. 1953
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"Industrial adhesives and sealants."
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McMaster-CarrEst. 1901
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"Complete industrial supply."
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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 spans the diameter. 2. Thread the nuts onto the U-bolt legs, hand-tightening initially. 3. Using appropriate wrenches, tighten the nuts evenly to the recommended torque specification for the application, ensuring firm and secure pipe support.

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
Over-tightening nuts, leading to pipe deformation or thread stripping.Consult engineering drawings or industry standards for correct torque values and use a calibrated torque wrench.
Selecting an incorrect U-bolt size for the pipe's nominal or actual outer diameter.Always verify the U-bolt's inside width and length against the specific pipe's dimensions to ensure proper fit and support.

Common Applications

  • Industrial pipe support
  • Conduit and cable tray mounting
  • Structural framing and bracing

⚠️ Engineering Warnings

  • Ensure all fasteners are properly tightened to prevent loosening due to vibration or load.
  • For corrosive environments, consider corrosion-resistant coatings or alternative materials.

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: Industrial pipe support, Conduit and cable tray mounting, Structural framing and bracing.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 3.15"B5.16"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.