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

304 Stainless U-Bolt for 3" Pipe | 1.22" W x 4.12" L

Expert Overview

This robust 304 stainless steel U-bolt is precision-engineered for secure and corrosion-resistant pipe support. Designed for 3" nominal pipe, it offers superior durability in harsh industrial and marine settings.

StandardDIN 933
Material304 Stainless Steel
FinishZinc Plated
GradeN/A
Inside Width ( A)1.22"
Inside Length ( B)4.12"
Thread Size1/2"-13

Detailed Engineering Specifications

Built to exacting engineering tolerances, this U-bolt is fabricated from premium 304 stainless steel, offering exceptional resistance to corrosion, oxidation, and a wide range of chemicals. It is specifically designed to accommodate a 3" nominal pipe diameter, with an inside width (A) of 1.22 inches and an inside length (B) of 4.12 inches. The 1/2"-13 UNC thread size ensures a strong, reliable connection when paired with appropriate nuts and a mounting surface. This configuration makes it ideal for structural support in marine, chemical processing, food and beverage, and general industrial applications where hygiene and longevity are paramount.

🧊 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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🏆 Global Innovation Leader
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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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🛡️ 24/7 Application Support
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🌱 Climate Positive 2030
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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🛡️ Lifetime Return Policy
Green Manufacturing
🌱 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. Ensure the U-bolt and mounting surface are clean and free of debris. 2. Position the U-bolt around the 3" pipe and through the mounting holes or bracket. 3. Secure with appropriate 1/2"-13 nuts (not included), tightening evenly on both sides to achieve firm but not overtightening compression.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardDIN 933

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
Selecting the wrong U-bolt size for the pipe outer diameter.Always verify the U-bolt's inside width (A) against the specific pipe's outer diameter to ensure a snug and secure fit.
Using standard steel U-bolts in corrosive environments.Utilize 304 stainless steel for applications exposed to moisture, saltwater, chemicals, or high humidity to prevent premature corrosion and failure.

Common Applications

  • Marine pipe and conduit support
  • Chemical processing equipment mounting
  • Food and beverage industry piping
  • General structural pipe anchoring

⚠️ Engineering Warnings

  • Ensure compatibility of mounting hardware (nuts, washers) with 304 stainless steel to prevent galvanic corrosion.
  • Do not exceed the recommended load capacity of the U-bolt and its mounting system.

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 pipe and conduit support, Chemical processing equipment mounting, Food and beverage industry piping, General structural pipe anchoring.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 1.22"B4.12"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.