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

Expert Overview

Engineered for robust pipe support in challenging conditions, this 316 stainless steel U-bolt offers superior corrosion resistance and a secure grip for 3" diameter piping systems.

StandardASME B18
Material316 Stainless Steel
FinishZinc Plated
GradeN/A
Inside Width ( A)4.99"
Inside Length ( B)4.79"
Thread Size1/2"-13

Detailed Engineering Specifications

Designed for demanding industrial environments, this 316 stainless steel U-bolt is meticulously fabricated to ensure exceptional performance and longevity. With an inside width (A) of 4.99 inches and an inside length (B) of 4.79 inches, it provides a precise fit for standard 3-inch nominal pipe sizes. The 1/2"-13 UNC thread size ensures robust fastening capabilities, compatible with standard nuts and washers. The inherent properties of 316 stainless steel, including its high chromium and nickel content, offer superior resistance to pitting and crevice corrosion, making it ideal for marine, chemical processing, and other harsh environments where exposure to saltwater, acids, and other corrosive agents is prevalent. This U-bolt is engineered to maintain structural integrity under significant load and environmental stress.

🧊 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."
Market Rank
🏆 Global Innovation Leader
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🚀 Aviation & Medical Approved
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🛡️ Premium Performance Guarantee
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🌱 100% Renewable Energy HQ
Certified:ISO 9001, ISO 14001
LoctiteEst. 1953
Germany🇩🇪
"Industrial adhesives and sealants."
Market Rank
🏆 #1 Global Adhesives
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🚀 Formula 1 & Aerospace OEM
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🛡️ 24/7 Application Support
Green Manufacturing
🌱 Climate Positive 2030
Certified:ISO 9001, IATF 16949
McMaster-CarrEst. 1901
USA🇺🇸
"Complete industrial supply."
Market Rank
🏆 #1 Industrial Supply Standard
Industry Approvals
🚀 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 pipe, ensuring it is centered and makes full contact. 2. Thread the nuts onto the U-bolt arms, initially by hand to confirm proper engagement. 3. Tighten the nuts evenly and securely using appropriate wrenches, ensuring a firm but not over-tightened grip to avoid pipe deformation.

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)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 verify the nominal pipe size and select a U-bolt with corresponding internal dimensions (width and length) for a secure and correct fit.
Over-tightening the nuts, leading to pipe damage.Tighten nuts until snug and secure, but avoid excessive force that could crush or deform the pipe. Use torque specifications if available.
Using standard carbon steel U-bolts in corrosive environments.Always specify 316 stainless steel for applications exposed to moisture, saltwater, chemicals, or other corrosive elements to prevent premature rust and failure.

Common Applications

  • Marine and offshore installations
  • Chemical processing plants
  • Wastewater treatment facilities
  • Food and beverage processing
  • Plumbing and HVAC systems in corrosive areas

⚠️ Engineering Warnings

  • Ensure all fasteners (nuts and washers) are also made of 316 stainless steel to maintain corrosion resistance.
  • Regularly 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 and offshore installations, Chemical processing plants, Wastewater treatment facilities, Food and beverage processing, Plumbing and HVAC systems in corrosive areas.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.99"B4.79"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.