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304 Stainless Steel U-Bolt for 3" Pipe | 1.88" W x 4.20" L

Expert Overview

Engineered from premium 304 stainless steel, this robust U-bolt is designed for secure and lasting pipe support in demanding environments. Its corrosion resistance ensures longevity for your critical infrastructure.

StandardASTM A106
Material304 Stainless Steel
FinishAnodized
GradeN/A
Inside Width ( A)1.88"
Inside Length ( B)4.20"
Thread Size1/2"-13

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this 304 stainless steel U-bolt offers exceptional corrosion resistance, making it ideal for marine, chemical processing, and outdoor installations. Featuring an inside width (A) of 1.88 inches and an inside length (B) of 4.20 inches, it is specifically designed to accommodate 3-inch nominal pipe sizes. The robust 1/2"-13 UNC threading ensures a secure and reliable fastening for mounting pipes to beams, channels, or other structural supports, providing unwavering stability even under significant load.

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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. Select the appropriate mounting surface and ensure it can support the pipe's weight and the U-bolt's rated load capacity. 2. Position the U-bolt around the 3" pipe and pass the threaded ends through the designated mounting holes or brackets. 3. Secure the U-bolt by threading the nuts onto the bolt ends, tightening them evenly to achieve firm contact without over-compression.

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 U-bolt's inside dimensions (Width A and Length B) match the nominal pipe size (3" in this case) to ensure a snug and secure fit.
Inadequate tightening of the nuts, leading to slippage or vibration.Tighten nuts evenly with a torque wrench to the manufacturer's recommended specification for the thread size to prevent movement and ensure structural integrity.
Selecting a lower-grade steel for corrosive environments.For applications exposed to moisture, salt, or chemicals, always opt for 304 stainless steel or higher to prevent rust and premature failure.

Common Applications

  • Marine environments (boat rigging, dock pilings)
  • Chemical processing plants
  • Outdoor structural supports for piping systems
  • Automotive exhaust hangers
  • Plumbing and HVAC installations

⚠️ Engineering Warnings

  • Ensure mounting surface is rated for the combined load of the pipe and the U-bolt.
  • Do not exceed the maximum load capacity specified for this U-bolt.
  • For extreme corrosive environments, consider a higher grade stainless steel like 316.

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: Marine environments (boat rigging, dock pilings), Chemical processing plants, Outdoor structural supports for piping systems, Automotive exhaust hangers, Plumbing and HVAC installations.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 1.88"B4.20"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.