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

304 Stainless Steel U-Bolt | 3" Pipe | 2.9" W x 6.53" L

Expert Overview

This 304 stainless steel U-bolt is engineered for robust support of 3-inch diameter piping systems. Its superior corrosion resistance ensures long-term integrity in challenging environments.

StandardASME B18
Material304 Stainless Steel
FinishAnodized
GradeN/A
Inside Width ( A)2.90"
Inside Length ( B)6.53"
Thread Size1/2"-13

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this U-bolt is constructed from premium 304 stainless steel, offering exceptional resistance to corrosion, oxidation, and pitting, making it ideal for marine, chemical processing, and outdoor installations. It is precisely manufactured to accommodate a 3-inch nominal pipe size, with an actual inside width (A) of 2.90 inches to ensure a secure fit around the pipe's outer diameter. The generous inside length (B) of 6.53 inches provides ample clearance for mounting and securing. The robust 1/2"-13 UNC coarse thread provides significant tensile strength for dependable fastening, capable of withstanding substantial loads and vibrations.

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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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McMaster-CarrEst. 1901
USA🇺🇸
"Complete industrial supply."
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🏆 #1 Industrial Supply Standard
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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, ensuring it straddles the pipe. 2. Place the provided washers and nuts onto the threaded legs of the U-bolt. 3. Tighten the nuts evenly and progressively to secure the pipe to the mounting surface, ensuring uniform pressure.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASME B18

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 incorrect U-bolt size for the pipe diameter.Always verify the nominal pipe size and ensure the U-bolt's inside width closely matches the pipe's outer diameter to prevent slippage or excessive compression.
Over-tightening nuts, leading to deformation of the pipe or U-bolt.Tighten nuts to the recommended torque specification for the thread size and material to avoid damage and ensure a secure, but not overly stressed, connection.

Common Applications

  • Pipe support and clamping in industrial plumbing
  • Marine and offshore installations
  • Chemical processing equipment mounting
  • Exhaust system fabrication and repair
  • General structural steel fabrication

⚠️ Engineering Warnings

  • Ensure compatibility of mating hardware (nuts and washers) for proper corrosion resistance.
  • Do not exceed the load rating of the U-bolt or associated mounting hardware.

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 industrial plumbing, Marine and offshore installations, Chemical processing equipment mounting, Exhaust system fabrication and repair, General structural steel fabrication.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 2.90"B6.53"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.