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

304 Stainless Steel U-Bolt for 4" Pipe | 3.43" W x 4.96" L | 1/2"-13 Thread

Expert Overview

Engineered for demanding environments, this 304 stainless steel U-bolt provides reliable and corrosion-resistant support for 4-inch pipe applications. Its robust construction ensures long-term structural integrity.

StandardISO 9001
Material304 Stainless Steel
FinishPassivated
GradeN/A
Inside Width ( A)3.43"
Inside Length ( B)4.96"
Thread Size1/2"-13

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this U-bolt is manufactured from premium 304 stainless steel, renowned for its exceptional corrosion resistance, high tensile strength, and durability in harsh conditions. With an inside width (A) of 3.43 inches and an inside length (B) of 4.96 inches, it is precisely designed to accommodate standard 4-inch nominal pipes. The robust 1/2"-13 UNC threading ensures secure fastening, making it suitable for a wide array of industrial, marine, and structural applications where integrity and longevity are paramount.

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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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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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Certified:ISO 9001, IATF 16949
McMaster-CarrEst. 1901
USA🇺🇸
"Complete industrial supply."
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🏆 #1 Industrial Supply Standard
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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 it sits flush against the mounting surface. 2. Thread the nuts onto the U-bolt legs, tightening them evenly to achieve firm contact but avoiding over-tightening. 3. Periodically inspect and retighten as necessary, especially after initial installation or in high-vibration environments.

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
Using the wrong size U-bolt for the pipe diameter, leading to loose or damaged installations.Always confirm the nominal pipe size and select a U-bolt with appropriate inside dimensions (Width and Length) to ensure a snug and secure fit.
Over-tightening the nuts, which can deform the pipe or the U-bolt, compromising its structural integrity.Tighten nuts evenly and firmly until snug. If torque specifications are critical for the application, use a calibrated torque wrench.

Common Applications

  • Plumbing and Piping Support
  • Marine Hardware
  • Structural Framing and Mounting
  • Exhaust System Components

⚠️ Engineering Warnings

  • Ensure compatibility of the 304 stainless steel with the surrounding environment to prevent galvanic corrosion if dissimilar metals are in contact.
  • Verify that the mounting surface can adequately support the load applied by the U-bolt and attached components.

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: Plumbing and Piping Support, Marine Hardware, Structural Framing and Mounting, Exhaust System Components.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 3.43"B4.96"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.