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304 Stainless Steel U-Bolt for 3" Pipe | 4.27" W x 7.21" L

Expert Overview

Engineered for robust pipe support, this 304 stainless steel U-bolt is designed to securely fasten 3" nominal pipes. Its superior corrosion resistance ensures long-term integrity in demanding environments.

StandardISO 9001
Material304 Stainless Steel
FinishPassivated
GradeN/A
Inside Width ( A)4.27"
Inside Length ( B)7.21"
Thread Size1/2"-13

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this U-bolt features a 4.27" inside width (A) and 7.21" inside length (B), specifically accommodating 3" nominal pipe diameters. Constructed from high-grade 304 stainless steel, it offers exceptional resistance to a wide range of corrosive media, including atmospheric conditions, many organic and inorganic chemicals, and food-processing environments. The 1/2"-13 UNC thread size provides robust mechanical fastening capabilities, suitable for securing pipes in marine, chemical processing, food and beverage, and general industrial applications where hygiene and corrosion prevention are paramount. Meets ASTM A276 standards for stainless steel bars and shapes.

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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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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 a suitable mounting surface or structure. 2. Thread the provided nuts onto the U-bolt legs until snug against the mounting surface. 3. Tighten the nuts evenly and progressively to achieve the required clamping force, ensuring secure pipe support without over-stressing the pipe or mounting structure.

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)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
Selecting the wrong U-bolt size for the pipe's nominal diameter.Always verify the U-bolt's inside width and length against the specific pipe's outer diameter and application requirements. This U-bolt is designed for 3" nominal pipe, which has a larger outer diameter than 3 inches.
Using standard steel U-bolts in corrosive environments.For applications involving moisture, saltwater, chemicals, or food processing, always specify 304 or 316 stainless steel to prevent premature corrosion and failure.

Common Applications

  • Marine vessel piping support
  • Chemical processing plant pipe securing
  • Food and beverage industry equipment mounting
  • General industrial conduit and pipe clamping

⚠️ Engineering Warnings

  • Ensure that the mounting surface can adequately support the load and vibration of the secured pipe.
  • Avoid overtightening the U-bolt nuts, as this can deform the pipe or damage the mounting structure.

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: Marine vessel piping support, Chemical processing plant pipe securing, Food and beverage industry equipment mounting, General industrial conduit and pipe clamping.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.27"B7.21"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.