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304 Stainless Steel U-Bolt for 3" Pipe - 3.72" W x 4.78" L

Expert Overview

This robust 304 stainless steel U-bolt is engineered for secure pipe support. Featuring a 3.72" inside width and 4.78" inside length, it's designed for 3" nominal pipe sizes, ensuring a reliable and corrosion-resistant fastening solution.

StandardASME B18
Material304 Stainless Steel
FinishBlack Oxide
GradeN/A
Inside Width ( A)3.72"
Inside Length ( B)4.78"
Thread Size1/2"-13

Detailed Engineering Specifications

A high-performance industrial component, this U-bolt is manufactured from premium 304 stainless steel, renowned for its exceptional corrosion resistance and durability in harsh environments. With an inside width (A) of 3.72 inches and an inside length (B) of 4.78 inches, it is precisely engineered to accommodate 3-inch nominal pipe diameters. The 1/2"-13 UNC threaded ends provide a secure and reliable connection when paired with appropriate nuts and washers. This specification ensures superior structural integrity and longevity in demanding applications subject to moisture, chemicals, or extreme temperatures.

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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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🏆 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 3" pipe, ensuring it rests on the pipe support. 2. Insert the threaded legs through the mounting holes of the pipe strap or saddle. 3. Securely fasten with appropriate 1/2"-13 nuts and washers, tightening evenly to the required torque specification.

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)18.0 - 20.0%
Nickel (Ni)8.0 - 10.5%
Manganese (Mn)2.00% max

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1400°F (760°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 / SaltwaterGood
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using an undersized or oversized U-bolt for the pipe diameter.Always verify the pipe's nominal size and select a U-bolt with compatible inside dimensions (A and B) to ensure a snug and secure fit.
Improperly tightening nuts, leading to vibration or inadequate clamping force.Tighten nuts evenly on both sides to the manufacturer's recommended torque specification. Use a torque wrench for accuracy.
Using standard steel U-bolts in corrosive environments.For applications exposed to moisture, chemicals, or saltwater, always opt for 304 or 316 stainless steel for superior corrosion resistance.

Common Applications

  • Pipe support in chemical processing plants
  • Marine and offshore piping systems
  • Food and beverage manufacturing facilities
  • General industrial plumbing and conduit support

⚠️ Engineering Warnings

  • Ensure all hardware (nuts and washers) is compatible with 304 stainless steel to prevent galvanic corrosion.
  • Do not exceed the U-bolt's rated load capacity. Consult engineering drawings for load 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 304 Stainless Steel U-Bolt, 3" Pipe made from?

A: This 304 Stainless Steel U-Bolt, 3" Pipe is manufactured from 304 Stainless Steel.

Q: What are the main applications?

A: Pipe support in chemical processing plants, Marine and offshore piping systems, Food and beverage manufacturing facilities, General industrial plumbing and conduit support.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 3.72"B4.78"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.