Home > U-Bolts > 304 Stainless Steel U-Bolt, 3" Pipe

304 Stainless Steel U-Bolt for 3" Pipe | 4.75" Width | 1/2"-13 Thread

Expert Overview

This robust 304 stainless steel U-bolt is engineered for secure and reliable 3-inch pipe mounting. Its precise dimensions and superior corrosion resistance ensure long-term performance in diverse industrial settings.

StandardDIN 933
Material304 Stainless Steel
FinishBlack Oxide
GradeN/A
Inside Width ( A)4.75"
Inside Length ( B)4.71"
Thread Size1/2"-13

Detailed Engineering Specifications

Specified by design engineers worldwide, this 304 stainless steel U-bolt is manufactured to exacting standards for critical infrastructure applications. With an inside width (A) of 4.75 inches and an inside length (B) of 4.71 inches, it provides a precise fit for 3-inch nominal pipe. The 1/2"-13 UNC thread size ensures strong mechanical engagement with compatible nuts and washers. The inherent properties of 304 stainless steel, including excellent corrosion resistance to a wide range of chemicals and atmospheric conditions, make this U-bolt ideal for offshore, chemical processing, food and beverage, and wastewater treatment environments.

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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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🛡️ 24/7 Application Support
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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
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🌱 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 3-inch pipe, ensuring it spans the desired support. 2. Place the pipe and U-bolt onto the mounting surface or bracket. 3. Secure the U-bolt by threading the provided nuts onto the bolt ends until snug, then tighten to the required torque specification for the application.

Equivalent Standards (Cross-Reference)

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

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 undersized U-bolts that do not fully encircle the pipe, leading to potential slippage or failure.Always verify the pipe's nominal size and select a U-bolt with an inside width and length that comfortably accommodates the pipe and any associated insulation or fittings.
Over-tightening the nuts, which can deform the pipe or the U-bolt, compromising its structural integrity and the integrity of the connection.Utilize a torque wrench to tighten nuts to the manufacturer's recommended torque values for the specific U-bolt size and application to prevent damage.

Common Applications

  • Pipe support and clamping in marine environments
  • Securing conduits in chemical processing plants
  • Mounting plumbing in food and beverage facilities

⚠️ Engineering Warnings

  • Ensure all nuts and washers are compatible with 304 stainless steel to prevent galvanic corrosion.
  • Regularly inspect U-bolt connections for signs of corrosion, wear, or loosening, especially in harsh environments.

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, 3" Pipe made from?

A: This 304 Stainless Steel U-Bolt, 3" Pipe is manufactured from 304 Stainless Steel.

Q: What are the main applications?

A: Pipe support and clamping in marine environments, Securing conduits in chemical processing plants, Mounting plumbing in food and beverage facilities.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.75"B4.71"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.