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

Expert Overview

Engineered for robust pipe support, this 3" carbon steel U-bolt features a 1/2"-13 UNC thread size. Its durable construction ensures reliable anchoring in challenging environments, providing long-term structural integrity.

StandardASTM A106
MaterialCarbon Steel
FinishBlack Oxide
GradeN/A
Inside Width ( A)1.96"
Inside Length ( B)5.37"
Thread Size1/2"-13

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this Carbon Steel U-Bolt is designed for secure and reliable 3" pipe suspension. Featuring a material composition of high-grade carbon steel, it offers excellent tensile strength and durability for load-bearing applications. The precise inside width (A) of 1.96" and inside length (B) of 5.37" accommodate standard 3" nominal pipe sizes. The robust 1/2"-13 UNC thread size ensures a strong, secure connection when used with appropriate nuts and mounting hardware, making it suitable for plumbing, mechanical, and structural support systems.

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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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Certified:ISO 9001, IATF 16949
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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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, ensuring it is centered. 2. Place the pipe and U-bolt assembly onto the mounting surface or bracket. 3. Secure the U-bolt using the specified nuts and washers, tightening them evenly to achieve the required clamping force without over-stressing the pipe or mounting.

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 incorrectly threaded nuts.Always use the correct size and thread pitch (1/2"-13 UNC) nuts, preferably self-locking or lock nuts for vibration-prone environments.
Uneven tightening of the U-bolt nuts.Tighten nuts incrementally and alternately to ensure even pressure distribution across the pipe and mounting surface, preventing pipe deformation.

Common Applications

  • Plumbing and HVAC pipe support
  • Mechanical equipment mounting
  • Structural steel framing and bracing

⚠️ Engineering Warnings

  • Ensure the mounting surface and hardware are rated to support the combined weight of the pipe, its contents, and the U-bolt assembly.
  • Avoid using in corrosive environments unless properly coated or a more resistant material is specified, as carbon steel is susceptible to rust.

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 HVAC pipe support, Mechanical equipment mounting, Structural steel framing and bracing.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 1.96"B5.37"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.