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

304 Stainless Steel U-Bolt | 3" Pipe | 1/2"-13 Thread | 1.42" W x 5.66" L

Expert Overview

Engineered for superior corrosion resistance, this 304 stainless steel U-bolt is designed for secure fastening of 3-inch diameter piping. Its robust construction ensures reliable performance in challenging industrial settings.

StandardASTM A106
Material304 Stainless Steel
FinishZinc Plated
GradeN/A
Inside Width ( A)1.42"
Inside Length ( B)5.66"
Thread Size1/2"-13

Detailed Engineering Specifications

A proven choice for industrial professionals, this U-bolt is precision-manufactured from high-grade 304 stainless steel, offering exceptional resistance to rust, corrosion, and pitting, making it ideal for marine, chemical processing, and food/beverage applications. The inside dimensions of 1.42" (A) and 5.66" (B) are specifically engineered to accommodate standard 3-inch nominal pipe sizes, while the robust 1/2"-13 UNC thread provides secure and dependable clamping force. This material composition ensures longevity and structural integrity even in aggressive environments.

🧊 Download 3D CAD Model (.STEP)

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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🌱 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" pipe and the mounting surface. 2. Thread the nuts onto the U-bolt legs, ensuring even engagement. 3. Tighten the nuts progressively and evenly to achieve the required clamping force, avoiding over-tightening.

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.Always verify the pipe's nominal diameter and compare it to the U-bolt's inside width (A) and length (B) specifications to ensure a proper fit.
Over-tightening the nuts, which can distort the pipe or damage the threads.Tighten nuts to the manufacturer's recommended torque specification or until a secure hold is achieved, ensuring even pressure on both legs.
Using standard steel U-bolts in corrosive environments.Select 304 stainless steel or a higher-grade alloy for applications exposed to moisture, chemicals, or saltwater to prevent premature corrosion and failure.

Common Applications

  • Pipe support and securing in plumbing systems
  • Marine and offshore installations
  • Chemical processing plants
  • Food and beverage processing equipment
  • General industrial fabrication and repair

⚠️ Engineering Warnings

  • Ensure compatibility with the specific pipe material and environmental conditions.
  • Always use appropriate personal protective equipment (PPE) during installation.
  • Verify that the mounting surface can adequately support the load.

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 securing in plumbing systems, Marine and offshore installations, Chemical processing plants, Food and beverage processing equipment, General industrial fabrication and repair.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 1.42"B5.66"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.