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

3" 304 Stainless Steel U-Bolt | 1/2"-13 Threads | 1.85" Width

Expert Overview

Engineered for superior corrosion resistance, this 3" pipe U-bolt is crafted from high-grade 304 stainless steel. It provides a secure and durable fastening solution for demanding environments and critical applications.

StandardDIN 933
Material304 Stainless Steel
FinishPlain
GradeN/A
Inside Width ( A)1.85"
Inside Length ( B)5.15"
Thread Size1/2"-13

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this 304 stainless steel U-bolt is designed for reliable performance in corrosive environments. With an inside width (A) of 1.85 inches and an inside length (B) of 5.15 inches, it perfectly accommodates standard 3-inch nominal pipes. The 1/2"-13 UNC thread size ensures compatibility with standard nuts and washers, offering significant tensile strength and load-bearing capacity. The inherent passivation layer of 304 stainless steel provides excellent resistance to oxidation and chemical attack, making it ideal for marine, chemical processing, and outdoor applications.

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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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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 pipe, ensuring it spans the desired mounting surface. 2. Thread the appropriate nuts onto both ends of the U-bolt. 3. Tighten nuts evenly and incrementally to achieve secure clamping force, avoiding over-tightening which could deform the pipe or bolt.

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
Using a U-bolt that is too small or too large for the pipe diameter, leading to insecure fastening or pipe damage.Always verify the U-bolt's inside dimensions (width and length) against the nominal pipe size and any required clearance for mounting hardware.
Mixing stainless steel U-bolts with non-stainless steel mounting hardware, which can lead to galvanic corrosion.Ensure all fasteners, including nuts and washers, are also made of 304 stainless steel when used with a 304 stainless steel U-bolt for optimal corrosion resistance.

Common Applications

  • Pipe and conduit support in marine environments
  • Securing plumbing and HVAC lines in corrosive atmospheres
  • Mounting exhaust systems and structural components in outdoor settings

⚠️ Engineering Warnings

  • Ensure proper torque is applied during installation to prevent thread stripping or deformation of components.
  • Regularly inspect installed U-bolts for signs of wear, corrosion, or loosening, especially in harsh environments.

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 and conduit support in marine environments, Securing plumbing and HVAC lines in corrosive atmospheres, Mounting exhaust systems and structural components in outdoor settings.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 1.85"B5.15"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.