Home > U-Bolts > Carbon Steel U-Bolt, 4" Pipe

4" Carbon Steel U-Bolt | 2.47" Width | 6.86" Length | Industrial Grade

Expert Overview

This robust 4" carbon steel U-bolt offers superior pipe support in heavy-duty industrial settings. Engineered for reliable performance, it ensures secure mounting and long-term structural integrity.

StandardASTM A106
MaterialCarbon Steel
FinishPlain
GradeN/A
Inside Width ( A)2.47"
Inside Length ( B)6.86"
Thread Size1/2"-13

Detailed Engineering Specifications

Designed for demanding industrial environments, this U-bolt is forged from high-strength carbon steel, offering excellent load-bearing capacity and resistance to corrosion in typical atmospheric conditions. The precise 2.47" inside width accommodates standard 4" nominal pipe sizes, while the 6.86" inside length provides ample clearance for mounting and insulation. Featuring a durable 1/2"-13 UNC thread size, it ensures secure fastening with compatible nuts and washers, making it ideal for securing piping systems in chemical processing, oil and gas, and general 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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🏆 Global Innovation Leader
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🚀 Aviation & Medical Approved
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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. Select appropriate mounting surface and ensure it can support the intended load. 2. Position the U-bolt around the 4" pipe, ensuring the pipe is seated correctly within the curvature. 3. Securely fasten the U-bolt using two 1/2"-13 UNC nuts and washers on each threaded leg, tightening evenly to achieve firm contact without over-compression.

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 / ExposedModerate
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 select a U-bolt with the corresponding inside width to ensure a snug and secure fit.
Over-tightening the U-bolt, which can deform the pipe or the bolt.Tighten nuts evenly and firmly to secure the pipe without causing structural damage to either the pipe or the U-bolt assembly.

Common Applications

  • Pipe support and anchoring in industrial plumbing
  • Securing conduit and electrical raceways
  • Structural framing and bracing in heavy machinery

⚠️ Engineering Warnings

  • Ensure all hardware (nuts and washers) is compatible with the U-bolt's thread size and material.
  • Do not exceed the rated load capacity of the U-bolt and its mounting system.

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, 4" Pipe made from?

A: This Carbon Steel U-Bolt, 4" Pipe is manufactured from Carbon Steel.

Q: What are the main applications?

A: Pipe support and anchoring in industrial plumbing, Securing conduit and electrical raceways, Structural framing and bracing in heavy machinery.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 2.47"B6.86"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.