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

316 Stainless Steel U-Bolt | 3" Pipe | 2.96" W x 4.87" L | 1/2"-13 Thread

Expert Overview

Engineered for superior corrosion resistance, this 316 stainless steel U-bolt securely fastens 3" diameter pipes. Its robust construction ensures reliable support in harsh conditions, from marine environments to chemical processing.

StandardISO 9001
Material316 Stainless Steel
FinishPassivated
GradeN/A
Inside Width ( A)2.96"
Inside Length ( B)4.87"
Thread Size1/2"-13

Detailed Engineering Specifications

Designed for demanding industrial environments, this U-bolt is fabricated from premium 316 stainless steel, renowned for its exceptional resistance to chlorides, pitting, and crevice corrosion. The precise dimensions, including an inside width (A) of 2.96 inches and an inside length (B) of 4.87 inches, are engineered to accommodate standard 3-inch nominal pipe sizes with a secure fit. Featuring a robust 1/2"-13 UNC thread size, it offers ample thread engagement for secure fastening with appropriate nuts and washers, ensuring structural integrity in applications exposed to saltwater, corrosive chemicals, or high humidity.

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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. Position the U-bolt around the 3" pipe, ensuring it is centered. 2. Place the pipe and U-bolt assembly onto the mounting surface or bracket. 3. Secure the U-bolt by threading the 1/2"-13 nuts onto the U-bolt legs, tightening them evenly to the desired torque specification, typically 50-75 ft-lbs for this size.

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 standard carbon steel U-bolts in corrosive environments.Always select 316 stainless steel U-bolts for marine, chemical, or high-moisture applications to prevent premature corrosion and failure.
Improperly torquing the nuts.Ensure nuts are tightened evenly and to the recommended torque to avoid over-stressing the U-bolt or inadequate clamping force.
Selecting the wrong U-bolt size for the pipe.Verify the U-bolt's inside dimensions (width and length) match the nominal pipe size and any required insulation or clearance.

Common Applications

  • Marine pipe support
  • Chemical processing equipment mounting
  • Offshore platform pipe securing
  • Wastewater treatment facilities
  • Food and beverage processing lines

⚠️ Engineering Warnings

  • Ensure proper thread engagement by using nuts and washers of the correct size and material.
  • Do not exceed the recommended torque limits for the U-bolt to prevent material fatigue or failure.

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 support, Chemical processing equipment mounting, Offshore platform pipe securing, Wastewater treatment facilities, Food and beverage processing lines.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 2.96"B4.87"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.