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304 Stainless Steel U-Bolt for 3" Pipe - 3.81" W x 4.32" L

Expert Overview

Engineered for secure pipe mounting, this 304 stainless steel U-bolt is designed for 3" nominal pipe. Featuring superior corrosion resistance, it ensures long-term performance in demanding applications.

StandardASTM A106
Material304 Stainless Steel
FinishZinc Plated
GradeN/A
Inside Width ( A)3.81"
Inside Length ( B)4.32"
Thread Size1/2"-13

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this U-bolt is meticulously crafted from 304 stainless steel, offering exceptional resistance to corrosion and oxidation, making it suitable for marine, chemical processing, and food/beverage industries. With an inside width (A) of 3.81 inches and an inside length (B) of 4.32 inches, it is designed to accommodate a 3-inch nominal pipe diameter. The robust 1/2"-13 UNC thread size provides secure fastening capabilities, ensuring reliable support and stability for piping systems under various operational stresses.

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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🇺🇸
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LoctiteEst. 1953
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McMaster-CarrEst. 1901
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"Complete industrial supply."
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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 U-bolt ensuring it matches the pipe diameter and required support. 2. Position the U-bolt around the pipe and through the mounting surface (e.g., bracket, beam). 3. Securely fasten the U-bolt using the provided nuts, ensuring even torque distribution on both sides.

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, leading to a loose or over-tightened fit.Verify the nominal pipe size and measure the actual pipe OD to select the correctly sized U-bolt with the specified inside width (A).
Insufficient or uneven tightening of the nuts, resulting in vibration and potential loosening.Tighten nuts evenly on both sides of the U-bolt to the recommended torque specification for the thread size, ensuring a secure and stable installation.

Common Applications

  • Pipe Support and Strapping
  • Plumbing and HVAC Systems
  • Marine and Offshore Structures

⚠️ Engineering Warnings

  • Ensure all hardware (nuts, washers) is also made of 304 stainless steel to prevent galvanic corrosion.
  • Do not exceed the load capacity recommended for this U-bolt size and material.

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 Strapping, Plumbing and HVAC Systems, Marine and Offshore Structures.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 3.81"B4.32"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.