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304 Stainless Steel U-Bolt for 4" Pipe - 3.25" W x 3.74" L

Expert Overview

Engineered for robust pipe support, this 304 stainless steel U-bolt securely fastens 4" nominal pipe. Its superior corrosion resistance ensures longevity in exposed and demanding industrial applications.

StandardASTM A106
Material304 Stainless Steel
FinishAnodized
GradeN/A
Inside Width ( A)3.25"
Inside Length ( B)3.74"
Thread Size1/2"-13

Detailed Engineering Specifications

Built to exacting engineering tolerances, this 304 stainless steel U-bolt is designed for reliable, long-term performance. Featuring an inside width (A) of 3.25 inches and an inside length (B) of 3.74 inches, it is precisely manufactured to accommodate standard 4-inch nominal pipe diameters. The 1/2"-13 UNC thread size on both legs ensures secure fastening with compatible nuts (sold separately). Constructed from high-grade 304 stainless steel, it offers exceptional resistance to corrosion, oxidation, and staining, making it ideal for marine, chemical processing, food and beverage, and outdoor environments where structural integrity 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
USA🇺🇸
"Science applied to life."
Market Rank
🏆 Global Innovation Leader
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🚀 Aviation & Medical Approved
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🛡️ Premium Performance Guarantee
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🌱 100% Renewable Energy HQ
Certified:ISO 9001, ISO 14001
LoctiteEst. 1953
Germany🇩🇪
"Industrial adhesives and sealants."
Market Rank
🏆 #1 Global Adhesives
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🚀 Formula 1 & Aerospace OEM
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🛡️ 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
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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 spans the desired support location. 2. Thread the appropriate nuts (sold separately) onto both ends of the U-bolt legs. 3. Tighten the nuts evenly using a wrench until the pipe is firmly secured, taking care not to overtighten and deform the pipe or U-bolt.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASTM A106

Mechanical Properties

Tensile Strength75,000 psi (515 MPa)
Yield Strength30,000 psi (205 MPa)
Elongation in 2 in.40% min
HardnessRockwell B95 max

Chemical Composition

Carbon (C)0.08% max
Chromium (Cr)18.0 - 20.0%
Nickel (Ni)8.0 - 10.5%
Manganese (Mn)2.00% max

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1400°F (760°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 / ExposedExcellent
Marine / SaltwaterGood
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using the wrong size U-bolt for the pipe diameter.Verify the nominal pipe size and select a U-bolt with compatible inside width and length dimensions.
Not using stainless steel in corrosive environments.Always specify 304 or 316 stainless steel for applications exposed to moisture, chemicals, or saltwater to prevent premature corrosion and failure.
Overtightening nuts, deforming the pipe or U-bolt.Tighten nuts progressively and evenly, ensuring a snug fit without excessive force that could compromise the integrity of the components.

Common Applications

  • Pipe hanging and support in plumbing systems
  • Securing conduit and cables in industrial settings
  • Marine and offshore structural applications

⚠️ Engineering Warnings

  • Ensure compatibility of nuts and washers with the 1/2"-13 thread size.
  • Maximum load capacity is dependent on application and proper installation; consult engineering specifications for specific load ratings.

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 304 Stainless Steel U-Bolt, 4" Pipe made from?

A: This 304 Stainless Steel U-Bolt, 4" Pipe is manufactured from 304 Stainless Steel.

Q: What are the main applications?

A: Pipe hanging and support in plumbing systems, Securing conduit and cables in industrial settings, Marine and offshore structural applications.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 3.25"B3.74"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.