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304 Stainless Steel U-Bolt for 3" Pipe | 1/2"-13 Thread

Expert Overview

Engineered for superior corrosion resistance and structural integrity, this 304 stainless steel U-bolt is designed to securely fasten 3-inch diameter pipes in demanding environments. Its robust construction ensures long-term reliability and safety.

StandardASME B18
Material304 Stainless Steel
FinishAnodized
GradeN/A
Inside Width ( A)3.11"
Inside Length ( B)3.99"
Thread Size1/2"-13

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this U-bolt is precision-manufactured from high-grade 304 stainless steel, offering excellent resistance to oxidation and a wide range of corrosive media. The inside width (A) is precisely 3.11 inches, accommodating standard 3-inch nominal pipe sizes. The inside length (B) measures 3.99 inches, providing ample clearance for pipe wall thickness and any associated insulation or sheathing. The robust 1/2"-13 UNC threads ensure a strong, secure fastening point when paired with appropriate nuts and washers, making it ideal for industrial plumbing, marine applications, and structural support systems requiring sustained performance under stress and exposure.

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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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McMaster-CarrEst. 1901
USA🇺🇸
"Complete industrial supply."
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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 is centered on the desired location. 2. Place appropriate washers and nuts onto the threaded ends of the U-bolt. 3. Tighten the nuts evenly and progressively to secure the pipe against the mounting surface, avoiding over-tightening which could deform the pipe.

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 a U-bolt with insufficient thread engagement.Ensure at least two full threads are engaged on each side of the nut for maximum holding power.
Applying uneven pressure during tightening, leading to pipe deformation.Tighten nuts incrementally and alternately on each leg of the U-bolt to ensure uniform clamping force.

Common Applications

  • Securing of 3-inch diameter piping in industrial facilities
  • Marine applications requiring corrosion-resistant hardware
  • Structural support for conduit and cable trays

⚠️ Engineering Warnings

  • Always use with appropriate size nuts and washers for optimal load distribution.
  • Confirm material compatibility with the surrounding environment to prevent premature corrosion.

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: Securing of 3-inch diameter piping in industrial facilities, Marine applications requiring corrosion-resistant hardware, Structural support for conduit and cable trays.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 3.11"B3.99"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.