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316 Stainless Steel U-Bolt | 3" Pipe | 1/2"-13 Thread

Expert Overview

This heavy-duty 316 Stainless Steel U-Bolt is precisely engineered to secure 3-inch nominal pipe size (NPS) applications. Its superior corrosion resistance makes it ideal for demanding environments.

StandardASME B18
Material316 Stainless Steel
FinishPlain
GradeN/A
Inside Width ( A)3.19"
Inside Length ( B)7.94"
Thread Size1/2"-13

Detailed Engineering Specifications

Engineered for reliability and performance, this U-bolt is constructed from premium 316 stainless steel, offering exceptional resistance to corrosion, pitting, and crevice attack, particularly in chloride-rich environments such as marine, chemical processing, and food/beverage industries. With an inside width (A) of 3.19 inches and an inside length (B) of 7.94 inches, it provides robust support for 3" nominal pipe. The 1/2"-13 UNC threads ensure a secure and dependable fastening connection, suitable for a wide range of clamping and structural applications requiring long-term durability and integrity under stress.

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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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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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🌱 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 even contact with the pipe surface. 2. Place the accompanying mounting plate or saddle on the opposite side of the pipe. 3. Secure the U-bolt by threading the nuts onto the exposed bolt ends and tightening them evenly.

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
Incorrectly sizing the U-bolt for the pipe diameter.Always verify the nominal pipe size (NPS) and cross-reference with the U-bolt's inside width (A) to ensure a snug and secure fit.
Using standard carbon steel U-bolts in corrosive environments.Utilize 316 stainless steel U-bolts for applications exposed to saltwater, chemicals, or high humidity to prevent premature corrosion and failure.

Common Applications

  • Marine hardware and vessel support
  • Chemical processing pipe systems
  • Food and beverage industry applications
  • Plumbing and conduit support in harsh environments

⚠️ Engineering Warnings

  • Ensure proper torque is applied during installation to prevent over-tightening, which can damage the pipe or U-bolt.
  • Regular inspection of the U-bolt is recommended in highly corrosive environments to monitor for any signs of degradation.

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 hardware and vessel support, Chemical processing pipe systems, Food and beverage industry applications, Plumbing and conduit support in harsh environments.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 3.19"B7.94"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.