Home > U-Bolts > 316 Stainless Steel U-Bolt, 3" Pipe

3" 316 Stainless Steel U-Bolt | 4.19" Width x 5.57" Length

Expert Overview

Engineered for robust pipe support, this 3" U-bolt is constructed from premium 316 stainless steel, offering exceptional corrosion resistance and durability in harsh industrial settings.

StandardDIN 933
Material316 Stainless Steel
FinishGalvanized
GradeN/A
Inside Width ( A)4.19"
Inside Length ( B)5.57"
Thread Size1/2"-13

Detailed Engineering Specifications

Designed for demanding industrial environments, this 3" U-bolt features a 4.19" inside width (A) and a 5.57" inside length (B), accommodating standard 3" nominal pipe diameters. The robust 1/2"-13 UNC threads provide secure fastening. Fabricated from Type 316 stainless steel, it offers superior resistance to pitting and crevice corrosion in saline, chemical, and high-temperature environments, making it ideal for marine, food processing, and chemical plant applications where material integrity is 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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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. Confirm the U-bolt's inside dimensions are appropriate for the 3" pipe diameter and supporting structure. 2. Position the U-bolt around the pipe and through the mounting surface, ensuring even contact. 3. Securely fasten using appropriate washers and nuts, tightening evenly to achieve uniform pressure.

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)16.0 - 18.0%
Nickel (Ni)10.0 - 14.0%
Molybdenum (Mo)2.0 - 3.0%

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1500°F (815°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 / SaltwaterExcellent
Chemical / AcidicGood

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Selecting the wrong U-bolt size for the pipe.Always verify the nominal pipe size and consult the U-bolt's inside dimensions (Width A and Length B) against pipe outer diameter and mounting requirements.
Using standard carbon steel U-bolts in corrosive environments.For applications involving saltwater, chemicals, or high humidity, exclusively use 316 stainless steel U-bolts to prevent premature corrosion and failure.

Common Applications

  • Marine pipe and conduit support
  • Chemical processing equipment mounting
  • Food and beverage industry fluid lines

⚠️ Engineering Warnings

  • Ensure proper torque is applied during installation to avoid over-stressing the U-bolt or damaging the pipe.
  • Periodically inspect U-bolts for signs of wear, corrosion, or loosening, especially in critical applications.

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 316 Stainless Steel U-Bolt, 3" Pipe made from?

A: This 316 Stainless Steel U-Bolt, 3" Pipe is manufactured from 316 Stainless Steel.

Q: What are the main applications?

A: Marine pipe and conduit support, Chemical processing equipment mounting, Food and beverage industry fluid lines.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.19"B5.57"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.