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316 Stainless Steel U-Bolt 4" Pipe | 2.78" W x 5.12" L | 1/2"-13 Thread

Expert Overview

Engineered for demanding environments, this 316 stainless steel U-bolt securely fastens 4" nominal pipe. Offering superior corrosion resistance, it ensures long-term structural integrity and reliability in challenging applications.

StandardISO 9001
Material316 Stainless Steel
FinishBlack Oxide
GradeN/A
Inside Width ( A)2.78"
Inside Length ( B)5.12"
Thread Size1/2"-13

Detailed Engineering Specifications

Specified by design engineers worldwide, this U-bolt is manufactured from premium 316 stainless steel, renowned for its exceptional resistance to pitting and crevice corrosion, particularly in marine and chemical environments. The precise dimensions, featuring an inside width (A) of 2.78 inches and an inside length (B) of 5.12 inches, are optimized for a secure fit around standard 4" nominal pipe. The robust 1/2"-13 UNC thread size provides ample strength for critical load-bearing and structural applications. This material composition and dimensional accuracy make it ideal for sectors requiring the highest standards of durability and performance.

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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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🚀 Formula 1 & Aerospace OEM
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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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🌱 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" nominal pipe, ensuring it passes through the mounting surface or bracket. 2. Thread the included nuts onto the U-bolt legs, hand-tightening initially. 3. Tighten the nuts incrementally and evenly using a calibrated torque wrench to the specified torque value, ensuring uniform pressure distribution and secure fastening.

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
Incorrectly identifying pipe size, leading to an improper fit and potential loosening.Always confirm the nominal pipe size (e.g., 4") and verify it matches the U-bolt's internal dimensions before installation.
Over-tightening or under-tightening the nuts, compromising the clamping force and structural integrity.Utilize a calibrated torque wrench and adhere to recommended torque specifications for the thread size and application to ensure optimal and consistent clamping force.

Common Applications

  • Marine and offshore structural support
  • Chemical processing and pharmaceutical pipelines
  • Industrial plumbing and HVAC systems
  • Food and beverage processing equipment
  • Corrosive environment structural anchoring

⚠️ Engineering Warnings

  • Ensure proper thread engagement to avoid stripping or premature failure.
  • Regularly inspect for signs of corrosion or mechanical damage, especially in harsh environments.

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 and offshore structural support, Chemical processing and pharmaceutical pipelines, Industrial plumbing and HVAC systems, Food and beverage processing equipment, Corrosive environment structural anchoring.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 2.78"B5.12"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.