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316 Stainless U-Bolt for 3" Pipe - 1.22" W x 3.90" L

Expert Overview

Engineered for superior corrosion resistance, this 316 stainless steel U-bolt is designed for secure and reliable mounting of 3" diameter piping systems. Its robust construction ensures longevity in demanding environments.

StandardISO 9001
Material316 Stainless Steel
FinishPlain
GradeN/A
Inside Width ( A)1.22"
Inside Length ( B)3.90"
Thread Size1/2"-13

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this U-bolt offers exceptional dimensional accuracy for seamless integration into critical infrastructure. Constructed from premium 316 stainless steel, it exhibits superior resistance to pitting and crevice corrosion, making it ideal for marine, chemical processing, and food & beverage applications. The 1.22" inside width (A) and 3.90" inside length (B) are optimized for standard 3" nominal pipe sizes. Equipped with a robust 1/2"-13 UNC thread, it provides ample strength for secure fastening and ensures compatibility with standard nuts and washers. This material choice guarantees long-term performance and structural integrity under challenging conditions.

🧊 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
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LoctiteEst. 1953
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McMaster-CarrEst. 1901
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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 even contact with the pipe surface. 2. Place the provided mounting plate or saddle (if applicable) against the U-bolt legs. 3. Secure the assembly by threading the 1/2"-13 nuts onto the U-bolt legs, tightening them evenly to the desired torque specification.

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 pipe's nominal size and select a U-bolt with a corresponding inside width (A) that provides a snug fit without excessive stress.
Inadequate tightening of nuts, leading to potential movement or failure.Ensure nuts are tightened securely and evenly to the recommended torque to prevent vibration-induced loosening and maintain system stability.
Using standard carbon steel U-bolts in corrosive environments.For applications exposed to moisture, chemicals, or saltwater, always opt for 316 stainless steel to prevent premature corrosion and ensure longevity.

Common Applications

  • Marine pipe support
  • Chemical processing equipment mounting
  • Food and beverage processing line support
  • Wastewater treatment systems
  • Offshore oil and gas platforms

⚠️ Engineering Warnings

  • Ensure compatibility of mating hardware (nuts and washers) in terms of material and thread size.
  • Do not exceed the rated load capacity of the U-bolt assembly, including any associated mounting hardware.

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, Food and beverage processing line support, Wastewater treatment systems, Offshore oil and gas platforms.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 1.22"B3.90"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.