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

4" 316 Stainless Steel U-Bolt | Pipe Clamps | Corrosion Resistant

Expert Overview

Engineered for robust pipe support, this 4" U-Bolt is precision-crafted from premium 316 stainless steel, offering exceptional corrosion resistance for critical applications.

StandardISO 9001
Material316 Stainless Steel
FinishBlack Oxide
GradeN/A
Inside Width ( A)4.38"
Inside Length ( B)5.18"
Thread Size1/2"-13

Detailed Engineering Specifications

Built to exacting engineering tolerances, this U-bolt features an inside width (A) of 4.38 inches and an inside length (B) of 5.18 inches, designed to accommodate standard 4-inch nominal pipe. The 1/2"-13 UNC thread size ensures compatibility with common securing hardware. Fabricated from 316 stainless steel, it exhibits superior resistance to pitting and crevice corrosion in chloride-rich environments, making it ideal for marine, chemical processing, and outdoor installations where environmental exposure is a concern.

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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."
Market Rank
🏆 Global Innovation Leader
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Certified:ISO 9001, ISO 14001
LoctiteEst. 1953
Germany🇩🇪
"Industrial adhesives and sealants."
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🏆 #1 Global Adhesives
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🚀 Formula 1 & Aerospace OEM
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🛡️ 24/7 Application Support
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🌱 Climate Positive 2030
Certified:ISO 9001, IATF 16949
McMaster-CarrEst. 1901
USA🇺🇸
"Complete industrial supply."
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🏆 #1 Industrial Supply Standard
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🚀 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 4" pipe, ensuring it is centered. 2. Insert the threaded legs through the mounting surface or bracket. 3. Secure the U-bolt by tightening the nuts evenly on both legs until firm, but avoid overtightening.

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 and select a U-bolt with an inside width and length appropriate for a secure fit.
Insufficient tightening of nuts, leading to movement.Ensure nuts are tightened evenly on both legs to prevent the pipe from shifting under load or vibration.
Using standard carbon steel U-bolts in corrosive environments.Select 316 stainless steel for marine, chemical, or outdoor applications to prevent premature corrosion and failure.

Common Applications

  • Marine pipe and conduit support
  • Chemical processing equipment mounting
  • Offshore oil and gas installations
  • Wastewater treatment infrastructure
  • Outdoor conduit and pipe securing

⚠️ Engineering Warnings

  • Ensure compatibility of the 1/2"-13 thread size with your chosen nuts and washers.
  • Do not exceed the recommended load capacity for this U-bolt; consult engineering specifications if unsure.

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 and conduit support, Chemical processing equipment mounting, Offshore oil and gas installations, Wastewater treatment infrastructure, Outdoor conduit and pipe securing.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.38"B5.18"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.