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

4" Carbon Steel U-Bolt | 2.37" Width x 6.88" Length

Expert Overview

This robust carbon steel U-bolt is engineered for secure and reliable mounting of 4-inch pipes. Featuring precise dimensions and durable construction, it ensures stable support in challenging industrial applications.

StandardDIN 933
MaterialCarbon Steel
FinishPlain
GradeN/A
Inside Width ( A)2.37"
Inside Length ( B)6.88"
Thread Size1/2"-13

Detailed Engineering Specifications

Designed for demanding industrial environments, this U-bolt is manufactured from high-grade carbon steel, offering superior tensile strength and resistance to corrosion and extreme temperatures. Its precise inside width of 2.37 inches accommodates standard 4-inch nominal pipe sizes, while the 6.88-inch inside length provides ample clearance for insulation or pipe expansion. The 1/2"-13 UNC threads ensure a secure and strong connection when paired with appropriate nuts and washers, making it suitable for critical infrastructure, chemical processing, and heavy machinery support.

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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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🛡️ 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, ensuring it straddles the supporting structure. 2. Thread the nuts onto the U-bolt legs until snug against the support. 3. Tighten nuts evenly in an alternating pattern to achieve the specified torque, securing the pipe firmly.

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
Incorrectly sizing the U-bolt for the pipe diameter.Always verify the pipe's nominal size and select a U-bolt with the corresponding inside width specification.
Over-tightening or under-tightening the nuts.Consult engineering drawings or industry standards for the recommended torque specifications and use a calibrated torque wrench.

Common Applications

  • Rigid pipe support in plumbing and HVAC systems
  • Securing conduit and electrical raceways
  • Mounting of structural components in industrial machinery

⚠️ Engineering Warnings

  • Ensure compatibility of fasteners (nuts and washers) with the U-bolt's thread size and material.
  • Do not exceed the maximum load capacity specified for this U-bolt and its supporting structure.

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: Rigid pipe support in plumbing and HVAC systems, Securing conduit and electrical raceways, Mounting of structural components in industrial machinery.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 2.37"B6.88"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.