Home > U-Bolts > 304 Stainless Steel U-Bolt, 4" Pipe

304 Stainless Steel U-Bolt for 4" Pipe | 4" x 6.5" | Corrosion Resistant

Expert Overview

Engineered for superior corrosion resistance, this 304 stainless steel U-bolt is designed to securely fasten 4" nominal pipe. Its robust construction ensures reliable performance in demanding environments, preventing costly failures.

StandardDIN 933
Material304 Stainless Steel
FinishGalvanized
GradeN/A
Inside Width ( A)1.39"
Inside Length ( B)6.53"
Thread Size1/2"-13

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this 304 stainless steel U-bolt offers exceptional durability and resistance to oxidation and corrosion, making it ideal for marine, chemical processing, and outdoor applications. The inside width (A) is precisely 1.39 inches, accommodating standard 4" nominal pipe. The inside length (B) extends to 6.53 inches, providing ample clearance for mounting hardware and insulation. Featuring a robust 1/2"-13 UNC thread size, this U-bolt ensures a strong and secure fastening connection, capable of withstanding significant tensile and shear loads. The inherent properties of 304 stainless steel, including its high chromium and nickel content, guarantee long-term structural integrity and aesthetic appeal even in harsh conditions.

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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
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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 4" pipe, ensuring it is centered. 2. Place the provided mounting plate or saddle (if applicable) against the surface to which the pipe will be secured. 3. Insert the threaded legs of the U-bolt through the designated holes in the mounting plate/saddle. Secure with the included nuts and washers, tightening them evenly and firmly to achieve the desired clamping force without overtightening.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardDIN 933

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 the wrong size U-bolt for the pipe diameter.Always verify the nominal pipe size against the U-bolt's inside width specification to ensure a proper fit.
Overtightening nuts, leading to deformation of the pipe or U-bolt.Tighten nuts incrementally and evenly. Use a torque wrench if precise clamping force is critical for the application.
Using standard steel U-bolts in corrosive environments.Select 304 stainless steel for applications exposed to moisture, saltwater, chemicals, or high humidity to prevent rust and premature failure.

Common Applications

  • Pipe support and mounting in marine environments
  • Securing conduit and cables in industrial settings
  • Plumbing and HVAC system installations
  • Vibration dampening and structural support

⚠️ Engineering Warnings

  • Ensure proper torque is applied during installation to prevent damage and ensure secure fastening.
  • Regularly inspect U-bolts for signs of wear, corrosion, or loosening, especially in demanding environments.

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, 4" Pipe made from?

A: This 304 Stainless Steel U-Bolt, 4" Pipe is manufactured from 304 Stainless Steel.

Q: What are the main applications?

A: Pipe support and mounting in marine environments, Securing conduit and cables in industrial settings, Plumbing and HVAC system installations, Vibration dampening and structural support.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 1.39"B6.53"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.