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304 Stainless Steel U-Bolt for 3" Pipe | 4.21" Width x 4.28" Length

Expert Overview

Engineered for robust pipe support, this 304 stainless steel U-bolt is designed for 3-inch nominal pipe diameters. Its superior corrosion resistance ensures longevity in demanding environments.

StandardASME B18
Material304 Stainless Steel
FinishZinc Plated
GradeN/A
Inside Width ( A)4.21"
Inside Length ( B)4.28"
Thread Size1/2"-13

Detailed Engineering Specifications

A proven choice for industrial professionals, this U-bolt is precision-manufactured from high-grade 304 stainless steel, offering exceptional tensile strength and resistance to a wide range of corrosive media. The internal dimensions are optimized for a secure fit around 3" nominal pipe, with an inside width (A) of 4.21 inches and an inside length (B) of 4.28 inches. The robust 1/2"-13 UNC thread size on both legs ensures reliable fastening with standard nuts and washers. This makes it ideal for structural support in marine, chemical processing, and food and beverage industries where sanitation and corrosion prevention are paramount.

🧊 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
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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🛡️ 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 pipe, ensuring it is centered. 2. Thread the nuts onto both legs of the U-bolt, hand-tightening initially. 3. Tighten the nuts alternately and evenly using appropriate wrenches to achieve secure clamping force, avoiding over-tightening.

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 a U-bolt with incorrect dimensions for the pipe size.Always verify the pipe's nominal and actual outside diameter against the U-bolt's internal dimensions (A and B) before installation.
Over-tightening the U-bolt, which can deform the pipe or the U-bolt itself.Apply consistent, even torque to both nuts, using a torque wrench if specified by system design, to ensure a secure fit without causing damage.

Common Applications

  • Structural pipe support in marine environments
  • Chemical processing plant pipe anchoring
  • Food and beverage industry sanitation systems

⚠️ Engineering Warnings

  • Ensure compatibility of 304 stainless steel with the specific chemicals and environmental conditions of the application.
  • Verify that the thread size and length of the U-bolt are adequate for the required load and fastening method.

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: Structural pipe support in marine environments, Chemical processing plant pipe anchoring, Food and beverage industry sanitation systems.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.21"B4.28"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.