Home > U-Bolts > 316 Stainless Steel U-Bolt, 4" Pipe

316 Stainless Steel U-Bolt | 4" Pipe | 3.65" W x 3.16" L

Expert Overview

This 316 Stainless Steel U-Bolt is engineered for secure 4" pipe support in corrosive environments. Featuring robust dimensions and superior corrosion resistance, it ensures lasting structural integrity for critical infrastructure.

StandardASME B18
Material316 Stainless Steel
FinishGalvanized
GradeN/A
Inside Width ( A)3.65"
Inside Length ( B)3.16"
Thread Size1/2"-13

Detailed Engineering Specifications

Designed for demanding industrial environments, this U-bolt is manufactured from premium 316 stainless steel, offering exceptional resistance to pitting and crevice corrosion in chloride-rich settings such as marine applications and chemical processing. Its precise dimensions, with an Inside Width (A) of 3.65" and an Inside Length (B) of 3.16", are specifically tailored for a secure fit around standard 4" nominal pipes. The 1/2"-13 UNC thread size provides ample engagement for standard nuts, facilitating a strong and reliable connection for structural support and pipe anchoring.

🧊 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 4" pipe, ensuring it rests on a suitable supporting structure. 2. Thread the provided nuts onto the U-bolt legs, snugging them gently to hold the pipe in place. 3. Tighten the nuts evenly to the recommended torque specification, ensuring a secure and stable attachment without deforming the pipe or U-bolt.

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 'Inside Width (A)' spec against the outer diameter of the pipe being secured to ensure a proper fit.
Over-tightening the nuts, leading to deformation of the pipe or U-bolt.Tighten nuts incrementally and evenly to the manufacturer's recommended torque, preventing excessive stress.
Using standard carbon steel U-bolts in corrosive environments.Select 316 stainless steel for applications exposed to saltwater, chemicals, or other corrosive agents to prevent premature rust and failure.

Common Applications

  • Marine pipe support
  • Chemical processing equipment anchoring
  • Offshore structural bracing
  • Wastewater treatment facilities
  • Food and beverage processing

⚠️ Engineering Warnings

  • Ensure compatibility of mating hardware (nuts and washers) with 316 stainless steel to prevent galvanic corrosion.
  • Do not exceed the maximum load rating for this U-bolt; consult engineering documentation for specific application requirements.

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, 4" Pipe made from?

A: This 316 Stainless Steel U-Bolt, 4" Pipe is manufactured from 316 Stainless Steel.

Q: What are the main applications?

A: Marine pipe support, Chemical processing equipment anchoring, Offshore structural bracing, Wastewater treatment facilities, Food and beverage processing.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 3.65"B3.16"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.