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3" Carbon Steel U-Bolt | 1/2"-13 Thread | Industrial Grade

Expert Overview

This robust carbon steel U-bolt is engineered for secure and reliable mounting of 3" diameter piping. Featuring a 1/2"-13 thread, it provides exceptional load-bearing capacity and durability for critical infrastructure and industrial applications.

StandardASME B18
MaterialCarbon Steel
FinishZinc Plated
GradeN/A
Inside Width ( A)1.69"
Inside Length ( B)3.99"
Thread Size1/2"-13

Detailed Engineering Specifications

A high-performance industrial component, this U-bolt is fabricated from high-grade carbon steel, offering excellent tensile strength and resistance to deformation under significant stress. With an inside width (A) of 1.69 inches and an inside length (B) of 3.99 inches, it is precisely designed to accommodate standard 3" nominal pipe sizes. The 1/2"-13 UNC thread specification ensures compatibility with standard metric and imperial fastening hardware, facilitating secure and stable installations in demanding environments such as chemical processing, oil and gas, and heavy manufacturing.

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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
Germany🇩🇪
"Industrial adhesives and sealants."
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🏆 #1 Global Adhesives
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🚀 Formula 1 & Aerospace OEM
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McMaster-CarrEst. 1901
USA🇺🇸
"Complete industrial supply."
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🏆 #1 Industrial Supply Standard
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🚀 US Military Approved
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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 3" pipe, ensuring the pipe is correctly seated within the curved section. 2. Place the U-bolt over the mounting surface or structural member, aligning the threaded ends with the pre-drilled holes or mounting brackets. 3. Secure the U-bolt by threading the nuts onto the bolts, tightening them evenly and progressively to achieve uniform clamping force without overtightening.

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 / ExposedExcellent
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 and compare it to the U-bolt's inside dimensions (A and B) to ensure a snug and secure fit.
Uneven tightening of the nuts, leading to stress concentrations.Tighten nuts alternately and incrementally to distribute clamping force evenly around the pipe and mounting surface.

Common Applications

  • Piping support in industrial facilities
  • Securing conduits and cables
  • Structural mounting of cylindrical components

⚠️ Engineering Warnings

  • Ensure all hardware, including nuts and washers, is compatible with the carbon steel U-bolt and the intended operating environment.
  • Do not exceed the recommended load capacity or torque specifications for this 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: Piping support in industrial facilities, Securing conduits and cables, Structural mounting of cylindrical components.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 1.69"B3.99"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.