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

316 Stainless Steel U-Bolt 3" Pipe | 4.73" W x 2.52" L | 1/2"-13 Thread

Expert Overview

Engineered for demanding environments, this 3" pipe U-bolt is constructed from premium 316 stainless steel, offering exceptional corrosion resistance for critical infrastructure and marine applications.

StandardISO 9001
Material316 Stainless Steel
FinishPassivated
GradeN/A
Inside Width ( A)4.73"
Inside Length ( B)2.52"
Thread Size1/2"-13

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this U-bolt is forged from marine-grade 316 stainless steel, renowned for its superior resistance to pitting and crevice corrosion in chloride-rich environments. With an inside width (A) of 4.73 inches and an inside length (B) of 2.52 inches, it is precisely designed to secure standard 3-inch nominal pipe or conduit. The robust 1/2"-13 UNC thread size ensures a strong, reliable connection when paired with appropriate nuts and washers, making it ideal for structural supports, pipe mounting, and anchoring in corrosive industrial, offshore, and chemical processing facilities.

🧊 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. Position the U-bolt over the pipe or conduit, ensuring proper alignment with the mounting surface. 2. Place the mounting surface (e.g., plate, bracket) against the pipe/conduit and thread the nuts onto the U-bolt legs. 3. Tighten the nuts evenly and progressively to the specified torque, ensuring a secure and stable attachment.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardISO 9001

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
Using the wrong U-bolt size for the pipe diameter.Always confirm the nominal pipe size and verify the U-bolt's inside dimensions (Width A and Length B) against the pipe's outer diameter and the required clearance.
Inadequate tightening of nuts, leading to movement or failure.Utilize a torque wrench to tighten nuts to the manufacturer's recommended torque specification for the thread size and application, ensuring even pressure on both legs.
Employing standard carbon steel U-bolts in corrosive environments.Select 316 stainless steel U-bolts for any application exposed to saltwater, chemicals, or high humidity to prevent premature rust and structural degradation.

Common Applications

  • Marine pipe and conduit support
  • Chemical processing plant pipe anchoring
  • Offshore structural pipe mounting

⚠️ Engineering Warnings

  • Ensure compatibility of mating hardware (nuts and washers) with 316 stainless steel to prevent galvanic corrosion.
  • Do not exceed the rated load capacity of the U-bolt, which is determined by its material grade, dimensions, and associated hardware.

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 plant pipe anchoring, Offshore structural pipe mounting.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.73"B2.52"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.