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

Expert Overview

This robust U-bolt, constructed from high-strength carbon steel, is engineered for secure and reliable fastening of 3-inch diameter piping systems. Its precise dimensions ensure a snug fit and dependable support in demanding industrial environments.

StandardASTM A106
MaterialCarbon Steel
FinishPassivated
GradeN/A
Inside Width ( A)1.33"
Inside Length ( B)4.54"
Thread Size1/2"-13

Detailed Engineering Specifications

A high-performance industrial component, this U-bolt is precision-manufactured from ASTM A105 carbon steel, offering superior tensile strength and durability for critical applications. The inside width (A) measures 1.33 inches, accommodating standard 3-inch nominal pipe. The inside length (B) is 4.54 inches, providing ample clearance for mounting and pipe movement. Equipped with a 1/2"-13 UNC coarse thread, it ensures secure fastening with compatible nuts and washers. The carbon steel material provides excellent resistance to moderate temperatures and pressures, making it suitable for a wide range of mechanical and structural support roles 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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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 3" pipe, ensuring it is centered. 2. Place the provided or compatible mounting plate (if applicable) against the support surface. 3. Insert the threaded legs of the U-bolt through the plate and secure with nuts and washers, tightening evenly on both sides.

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 undersized or oversized U-bolts for the pipe diameter.Always verify the pipe's nominal and actual outer diameter to select a U-bolt with the correct inside width (A) for a secure, non-damaging fit.
Insufficient or uneven tightening of the nuts.Tighten nuts progressively and evenly on both sides to distribute load and prevent pipe distortion or premature failure. Refer to torque specifications if available.

Common Applications

  • Pipe support and anchoring in industrial facilities
  • Securing conduit and cable trays
  • Structural bracing and mounting applications

⚠️ Engineering Warnings

  • Ensure material compatibility with the surrounding environment to prevent corrosion.
  • Always use appropriate personal protective equipment (PPE) during installation.

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 facilities, Securing conduit and cable trays, Structural bracing and mounting applications.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 1.33"B4.54"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.