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

3" Carbon Steel U-Bolt, 1/2"-13 Thread - 2.85" W x 5.91" L

Expert Overview

Engineered for robust pipe support, this 3" Carbon Steel U-Bolt features a 1/2"-13 thread for secure fastening. Its precise dimensions ensure a reliable fit for standard piping systems, offering exceptional durability and structural integrity.

StandardASME B18
MaterialCarbon Steel
FinishBlack Oxide
GradeN/A
Inside Width ( A)2.85"
Inside Length ( B)5.91"
Thread Size1/2"-13

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this Carbon Steel U-Bolt is designed for demanding applications. With an inside width (A) of 2.85" and an inside length (B) of 5.91", it provides a secure clamping solution for 3" nominal pipe. The robust 1/2"-13 thread size ensures high tensile strength and resistance to vibration, making it suitable for static and dynamic load-bearing scenarios. Manufactured from high-quality carbon steel, it offers excellent mechanical properties and corrosion resistance for extended service life in industrial, commercial, and residential environments.

🧊 Download 3D CAD Model (.STEP)

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."
Market Rank
🏆 Global Innovation Leader
Industry Approvals
🚀 Aviation & Medical Approved
Warranty & Support
🛡️ Premium Performance Guarantee
Green Manufacturing
🌱 100% Renewable Energy HQ
Certified:ISO 9001, ISO 14001
LoctiteEst. 1953
Germany🇩🇪
"Industrial adhesives and sealants."
Market Rank
🏆 #1 Global Adhesives
Industry Approvals
🚀 Formula 1 & Aerospace OEM
Warranty & Support
🛡️ 24/7 Application Support
Green Manufacturing
🌱 Climate Positive 2030
Certified:ISO 9001, IATF 16949
McMaster-CarrEst. 1901
USA🇺🇸
"Complete industrial supply."
Market Rank
🏆 #1 Industrial Supply Standard
Industry Approvals
🚀 US Military Approved
Warranty & Support
🛡️ 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. Position the U-bolt around the pipe and through the mounting surface or bracket. 2. Thread the nuts onto the U-bolt legs, ensuring they are snug against the mounting surface. 3. Tighten the nuts evenly and progressively to the specified torque to achieve secure pipe support without over-compression.

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 / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Over-tightening the nuts, leading to pipe deformation or damage to the mounting surface.Use a torque wrench and adhere to recommended torque specifications for the bolt size and application to ensure secure fastening without excessive stress.
Selecting a U-bolt with incorrect dimensions, resulting in a loose fit or inability to properly secure the pipe.Always verify the pipe's nominal size and measure the actual outside diameter to ensure the selected U-bolt's inside width and length are appropriate for a secure fit.

Common Applications

  • Plumbing and Hydronic Systems
  • Conduit and Cable Tray Support
  • Structural Pipe Mounting

⚠️ Engineering Warnings

  • Ensure the mounting surface is capable of withstanding the applied load.
  • For corrosive environments, consider using appropriately coated or stainless steel U-bolts.

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: Plumbing and Hydronic Systems, Conduit and Cable Tray Support, Structural Pipe Mounting.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 2.85"B5.91"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.