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

3" Carbon Steel U-Bolt | 1/2"-13 Thread | 1.39" W x 6.71" L

Expert Overview

This 3" pipe U-bolt, crafted from high-strength carbon steel, provides secure and reliable support for conduit, pipe, and tubing. Engineered for durability, it ensures stable installations in demanding environments.

StandardDIN 933
MaterialCarbon Steel
FinishAnodized
GradeN/A
Inside Width ( A)1.39"
Inside Length ( B)6.71"
Thread Size1/2"-13

Detailed Engineering Specifications

Built to exacting engineering tolerances, this U-bolt features a 1.39-inch inside width (A) and a 6.71-inch inside length (B), specifically designed to accommodate standard 3-inch nominal diameter pipes. Manufactured from premium carbon steel, it offers exceptional tensile strength and resistance to deformation under load. The 1/2"-13 UNC thread size ensures robust fastening capabilities with standard nuts and washers. Ideal for seismic bracing, structural support, and general pipe hanging applications where reliable load bearing 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
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McMaster-CarrEst. 1901
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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 and the supporting structure. 2. Thread the nuts onto the bolt legs until snug against the supporting surface. 3. Tighten the nuts evenly, ensuring the pipe is held securely without deformation. Use a torque wrench to achieve specified tension if required.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardDIN 933

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
Over-tightening the nuts, which can crush the pipe or damage the supporting structure.Tighten nuts gradually and evenly. If specific torque values are critical, use a calibrated torque wrench.
Using incorrect thread size fasteners, leading to a loose or insecure connection.Verify that the nuts and any associated hardware match the 1/2"-13 thread size of the U-bolt.

Common Applications

  • Conduit and Pipe Support
  • Seismic Bracing
  • Structural Mounting

⚠️ Engineering Warnings

  • Ensure material compatibility for corrosive environments; this carbon steel is not inherently corrosion-resistant.
  • Verify load capacity against application requirements before 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: Conduit and Pipe Support, Seismic Bracing, Structural Mounting.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 1.39"B6.71"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.