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

Expert Overview

Engineered for superior corrosion resistance, this 316 stainless steel U-bolt is designed for secure clamping of 3-inch pipes. Its robust construction ensures long-term performance in demanding environments.

StandardISO 9001
Material316 Stainless Steel
FinishGalvanized
GradeN/A
Inside Width ( A)1.78"
Inside Length ( B)2.99"
Thread Size1/2"-13

Detailed Engineering Specifications

Manufactured under strict quality controls, this U-bolt is forged from premium 316 stainless steel, offering exceptional resistance to pitting and crevice corrosion in chloride-rich environments. The precise dimensions, including an inside width of 1.78 inches (A) and an inside length of 2.99 inches (B), are engineered to precisely fit standard 3-inch nominal pipes. The 1/2"-13 UNC threads provide robust fastening capabilities, suitable for applications requiring high tensile strength and durability. This material is ideal for marine, chemical processing, and food service industries where hygiene and resistance to harsh elements are 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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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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🏆 #1 Industrial Supply Standard
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Certified:ISO 9001 Compliant

Certifications & Compliance

RoHS Compliant:Yes
REACH Compliant:Yes
Material Traceability:Available on Request
DFARS Compliant:Yes

Installation Procedure

1. Place the U-bolt around the 3" pipe, ensuring it is centered. 2. Position the accompanying saddle or plate beneath the pipe and align it with the U-bolt threads. 3. Securely fasten the U-bolt by threading the nuts onto both ends of the bolt, tightening evenly to achieve the required clamping force.

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 size U-bolt for the pipe diameter.Always verify the nominal pipe size (NPS) and select a U-bolt with compatible internal dimensions for a secure fit.
Insufficient tightening of nuts leading to slippage.Tighten nuts evenly and to the manufacturer's recommended torque specifications to prevent movement and ensure stability.
Using standard carbon steel U-bolts in corrosive environments.Select 316 stainless steel for applications exposed to saltwater, chemicals, or high humidity to prevent premature rust and failure.

Common Applications

  • Marine hardware and support structures
  • Chemical processing plant piping
  • Food and beverage industry equipment mounting
  • General structural support in corrosive environments

⚠️ Engineering Warnings

  • Ensure all fastening hardware (nuts, washers) is also made of 316 stainless steel to prevent galvanic corrosion.
  • Do not exceed the recommended load capacity of the U-bolt; consult engineering documentation for specific load ratings.

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 hardware and support structures, Chemical processing plant piping, Food and beverage industry equipment mounting, General structural support in corrosive environments.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 1.78"B2.99"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.