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

316 Stainless Steel U-Bolt, 3" Pipe - 4.3" W x 3.98" L

Expert Overview

Engineered from superior 316 stainless steel, this U-bolt provides robust and corrosion-resistant fastening for 3-inch diameter piping. Its durable construction ensures reliable support in demanding industrial settings.

StandardISO 9001
Material316 Stainless Steel
FinishBlack Oxide
GradeN/A
Inside Width ( A)4.30"
Inside Length ( B)3.98"
Thread Size1/2"-13

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this 316 stainless steel U-bolt is engineered for superior corrosion resistance, particularly in harsh marine and chemical environments. With an inside width (A) of 4.30 inches and an inside length (B) of 3.98 inches, it is designed to securely embrace standard 3-inch nominal pipes. The robust 1/2"-13 UNC thread size ensures substantial clamping force and compatibility with standard nuts and washers, providing a dependable and long-lasting structural connection for critical infrastructure and equipment.

🧊 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
Industry Approvals
🚀 Aviation & Medical Approved
Warranty & Support
🛡️ Premium Performance Guarantee
Green Manufacturing
🌱 100% Renewable Energy HQ
Certified:ISO 9001, ISO 14001
LoctiteEst. 1953
Germany🇩🇪
"Industrial adhesives and sealants."
Market Rank
🏆 #1 Global Adhesives
Industry Approvals
🚀 Formula 1 & Aerospace OEM
Warranty & Support
🛡️ 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
Warranty & Support
🛡️ 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 rests flush against the supporting surface. 2. Thread the nuts onto the U-bolt legs, tightening them evenly to achieve secure clamping pressure. 3. Verify that the pipe is held firmly in place and that the U-bolt is not over-tightened, which could deform the pipe.

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 insufficient tightening torque, leading to pipe movement.Ensure nuts are tightened progressively and evenly to the recommended torque specification for the thread size and application.
Selecting a U-bolt with incorrect dimensions for the pipe size.Always confirm the pipe's nominal and actual outer diameter to match the inside width and length of the U-bolt.

Common Applications

  • Marine and offshore structural support
  • Chemical processing plant pipe hangers
  • Food and beverage industry piping
  • Wastewater treatment facility installations

⚠️ Engineering Warnings

  • Ensure compatibility of thread pitch and size with nuts and washers before assembly.
  • Avoid overtightening, which can damage the pipe or compromise the U-bolt's integrity.

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 structural support, Chemical processing plant pipe hangers, Food and beverage industry piping, Wastewater treatment facility installations.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.30"B3.98"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.