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304 Stainless Steel U-Bolt for 3" Pipe - 3.90" Width

Expert Overview

Engineered for demanding environments, this 304 stainless steel U-bolt ensures secure and reliable fastening for 3-inch diameter piping systems. Its robust construction and corrosion resistance make it ideal for critical industrial applications.

StandardISO 9001
Material304 Stainless Steel
FinishAnodized
GradeN/A
Inside Width ( A)3.90"
Inside Length ( B)4.51"
Thread Size1/2"-13

Detailed Engineering Specifications

A proven choice for industrial professionals, this 304 stainless steel U-bolt is meticulously designed to accommodate 3-inch nominal pipe sizes with an actual inside width (A) of 3.90 inches and an inside length (B) of 4.51 inches. Manufactured from high-grade 304 stainless steel, it offers exceptional corrosion resistance, crucial for environments exposed to moisture, chemicals, or saltwater. The 1/2"-13 UNC thread size provides a secure and strong connection point, suitable for applications ranging from marine and food processing to chemical plants and general construction, ensuring long-term structural integrity.

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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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Certified:ISO 9001, ISO 14001
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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🌱 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 rests evenly on the pipe's exterior. 2. Place the accompanying backing plate (if applicable) over the threads and thread on the nuts, hand-tightening initially. 3. Use appropriate wrenches to gradually tighten the nuts in an alternating pattern until the desired clamping force is achieved, avoiding over-tightening.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardISO 9001

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 a U-bolt for a pipe diameter significantly different from its intended size.Always select a U-bolt with an inside width that closely matches the outer diameter of the pipe being secured to ensure proper fit and support.
Inadequate tightening of the U-bolt nuts, leading to pipe movement or failure.Tighten nuts evenly in an alternating pattern to the manufacturer's recommended torque specifications or until a firm, secure hold is achieved without deforming the pipe.
Using standard steel U-bolts in corrosive environments, leading to premature rust and failure.Select U-bolts constructed from corrosion-resistant materials like 304 or 316 stainless steel when the application involves exposure to moisture, chemicals, or saltwater.

Common Applications

  • Pipe support and clamping in marine environments
  • Securing conduit and tubing in chemical processing plants
  • General purpose pipe fastening in construction and fabrication

⚠️ Engineering Warnings

  • Ensure thread compatibility before assembly.
  • Always use appropriate personal protective equipment during installation.

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 conduit and tubing in chemical processing plants, General purpose pipe fastening in construction and fabrication.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 3.90"B4.51"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.