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

Expert Overview

Engineered for superior corrosion resistance, this 316 stainless steel U-bolt is designed for secure attachment of 3-inch diameter piping systems. Its robust construction ensures long-term structural integrity in harsh industrial settings.

StandardDIN 933
Material316 Stainless Steel
FinishPassivated
GradeN/A
Inside Width ( A)1.11"
Inside Length ( B)7.74"
Thread Size1/2"-13

Detailed Engineering Specifications

A high-performance industrial component, this 316 stainless steel U-bolt is specifically designed for the secure fastening of 3-inch nominal pipe. It features an inside width (A) of 1.11 inches and an inside length (B) of 7.74 inches, accommodating standard 3" pipe O.D. with adequate clearance for securing straps and insulation. The threaded ends are manufactured to a 1/2"-13 UNC standard, ensuring compatibility with standard nuts and washers. The 316 stainless steel alloy provides exceptional resistance to pitting and crevice corrosion in aggressive environments, including marine, chemical processing, and food/beverage applications. Its high tensile strength and durability make it ideal for load-bearing supports where reliability is paramount.

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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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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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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 around the 3" pipe, ensuring it straddles the pipe's circumference. 2. Place the U-bolt across the mounting surface or support structure. 3. Secure the U-bolt by threading the provided nuts onto the bolt ends, tightening evenly on both sides to achieve the desired clamping force.

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
Incorrect U-bolt size selected for the pipe diameter.Verify the nominal pipe size and corresponding U-bolt dimensions (inside width and length) before installation. This U-bolt is designed for 3" pipe.
Over-tightening of the U-bolt, leading to pipe deformation.Tighten nuts firmly and evenly, but avoid excessive force that could crush or deform the pipe. Use a torque wrench if precise clamping force is critical.

Common Applications

  • Marine and offshore piping supports
  • Chemical processing plant pipe anchoring
  • Food and beverage industry pipeline systems
  • Wastewater treatment facility pipe securing

⚠️ Engineering Warnings

  • Ensure all hardware (nuts and washers) are also made of 316 stainless steel to maintain corrosion resistance.
  • Inspect U-bolts regularly for signs of corrosion or damage, especially in aggressive 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 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 and offshore piping supports, Chemical processing plant pipe anchoring, Food and beverage industry pipeline systems, Wastewater treatment facility pipe securing.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 1.11"B7.74"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.