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304 Stainless Steel U-Bolt for 3" Pipe - 4.90" W x 4.21" L

Expert Overview

Engineered for robust pipe support, this 304 stainless steel U-bolt offers superior corrosion resistance. Precisely manufactured to secure 3-inch diameter pipes and conduits in demanding applications.

StandardASTM A106
Material304 Stainless Steel
FinishAnodized
GradeN/A
Inside Width ( A)4.90"
Inside Length ( B)4.21"
Thread Size1/2"-13

Detailed Engineering Specifications

Built to exacting engineering tolerances, this U-bolt is fabricated from premium 304 stainless steel, ensuring exceptional strength and resistance to rust, corrosion, and environmental degradation. Its design accommodates pipes up to 3-inch nominal diameter with an inside width (A) of 4.90 inches and an inside length (B) of 4.21 inches. The robust 1/2"-13 UNC threads provide secure fastening capabilities. This material and dimension set makes it ideal for marine, chemical processing, food and beverage, and outdoor infrastructure applications where longevity and hygiene 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."
Market Rank
🏆 Global Innovation Leader
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🚀 Aviation & Medical Approved
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🛡️ Premium Performance Guarantee
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🌱 100% Renewable Energy HQ
Certified:ISO 9001, ISO 14001
LoctiteEst. 1953
Germany🇩🇪
"Industrial adhesives and sealants."
Market Rank
🏆 #1 Global Adhesives
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🚀 Formula 1 & Aerospace OEM
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🛡️ 24/7 Application Support
Green Manufacturing
🌱 Climate Positive 2030
Certified:ISO 9001, IATF 16949
McMaster-CarrEst. 1901
USA🇺🇸
"Complete industrial supply."
Market Rank
🏆 #1 Industrial Supply Standard
Industry Approvals
🚀 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 over the pipe and the mounting surface, ensuring the pipe is centered within the U-bolt's curve. 2. Thread the nuts onto the U-bolt's threaded ends, finger-tightening initially. 3. Use appropriate wrenches to tighten the nuts evenly and securely, applying consistent torque to both sides to prevent uneven pressure distribution.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASTM A106

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
Over-tightening the U-bolt, which can deform the pipe or mounting surface.Tighten nuts until snug and secure, applying torque evenly. Refer to pipe and mounting hardware specifications for recommended torque values.
Using the wrong size U-bolt for the pipe diameter, leading to a loose or damaging fit.Always verify the pipe's actual outer diameter and compare it to the U-bolt's inside width (A) and length (B) dimensions to ensure a proper fit.

Common Applications

  • Marine hardware and vessel support
  • Chemical processing and pharmaceutical piping
  • Food and beverage industry conduit securing
  • Outdoor structural pipe mounting
  • Plumbing and HVAC system support

⚠️ Engineering Warnings

  • Ensure compatibility of mounting hardware (nuts, washers) with 304 stainless steel to prevent galvanic corrosion.
  • Avoid exposing to high concentrations of chlorides or strong acids, which can degrade stainless steel over time.

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 hardware and vessel support, Chemical processing and pharmaceutical piping, Food and beverage industry conduit securing, Outdoor structural pipe mounting, Plumbing and HVAC system support.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.90"B4.21"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.