Home > U-Bolts > 304 Stainless Steel U-Bolt, 3" Pipe

304 Stainless Steel U-Bolt for 3" Pipe | 1.60" W x 3.99" L

Expert Overview

This robust 304 stainless steel U-bolt is engineered to securely fasten 3-inch diameter pipes. Featuring superior corrosion resistance and precise dimensions, it ensures long-term integrity in various environments.

StandardISO 9001
Material304 Stainless Steel
FinishAnodized
GradeN/A
Inside Width ( A)1.60"
Inside Length ( B)3.99"
Thread Size1/2"-13

Detailed Engineering Specifications

Manufactured under strict quality controls, this U-bolt is constructed from premium 304 stainless steel, renowned for its excellent corrosion and oxidation resistance, making it ideal for marine, chemical processing, and outdoor applications. It is precisely dimensioned with an inside width (A) of 1.60 inches and an inside length (B) of 3.99 inches, designed to accommodate standard 3-inch nominal pipe sizes. The 1/2"-13 UNC thread size ensures compatibility with standard nuts and washers for secure fastening. The inherent strength and durability of 304 stainless steel provide exceptional load-bearing capacity and longevity, resisting degradation from moisture, acids, and other environmental factors.

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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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🏆 Global Innovation Leader
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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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🚀 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 3" pipe, ensuring it straddles the pipe evenly. 2. Place the provided or equivalent flat washers and nuts onto the threaded legs of the U-bolt. 3. Tighten the nuts incrementally and alternately to achieve uniform pressure and a secure fit, avoiding overtightening which can deform the pipe.

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.Always verify the pipe's nominal and actual outer diameter to select a U-bolt with appropriate inside width and length dimensions.
Overtightening the nuts, causing pipe deformation or U-bolt damage.Tighten nuts gradually and alternately, stopping when the U-bolt is snug and the pipe is held securely without distortion. Torque specifications should be consulted if available.
Using carbon steel U-bolts in corrosive environments.Select 304 or 316 stainless steel U-bolts for applications exposed to moisture, saltwater, chemicals, or other corrosive agents to prevent premature rust and failure.

Common Applications

  • Pipe support and mounting in plumbing systems
  • Securing conduits and electrical raceways
  • Marine hardware and structural support

⚠️ Engineering Warnings

  • Ensure that the material selected is appropriate for the environmental conditions to prevent premature corrosion and failure.
  • Always use appropriately rated nuts and washers with this U-bolt for optimal load bearing and safety.

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: Pipe support and mounting in plumbing systems, Securing conduits and electrical raceways, Marine hardware and structural support.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 1.60"B3.99"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.