Home > U-Bolts > 316 Stainless Steel U-Bolt, 4" Pipe

316 Stainless Steel U-Bolt | 4" Pipe | 2.52" W x 3.28" L

Expert Overview

This 316 stainless steel U-bolt is engineered to securely fasten 4-inch nominal pipe. Its robust construction and superior corrosion resistance make it ideal for marine, chemical, and other harsh environments.

StandardASTM A106
Material316 Stainless Steel
FinishPassivated
GradeN/A
Inside Width ( A)2.52"
Inside Length ( B)3.28"
Thread Size1/2"-13

Detailed Engineering Specifications

Built to exacting engineering tolerances, this U-bolt is constructed from premium 316 stainless steel, offering exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking, even in highly corrosive environments. The inside width (A) is precisely 2.52 inches, and the inside length (B) is 3.28 inches, ensuring a snug and secure fit around a 4-inch nominal pipe. The 1/2"-13 UNC threads are rolled for increased strength and fatigue resistance, guaranteeing reliable performance in demanding industrial and marine applications.

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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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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 even contact. 2. Thread the nuts onto the U-bolt legs, hand-tightening initially. 3. Tighten the nuts progressively and evenly using appropriate wrenches until the pipe is securely held, avoiding over-tightening which could distort the pipe or U-bolt.

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)16.0 - 18.0%
Nickel (Ni)10.0 - 14.0%
Molybdenum (Mo)2.0 - 3.0%

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1500°F (815°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 / SaltwaterExcellent
Chemical / AcidicGood

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 and compare it to the U-bolt's inside dimensions (A and B) to ensure a proper fit.
Improper tightening, leading to uneven pressure or slippage.Tighten nuts in an alternating pattern to ensure uniform pressure on the pipe and secure mounting.
Using carbon steel U-bolts in corrosive environments.Select 316 stainless steel U-bolts for superior corrosion resistance in marine, chemical, or outdoor applications.

Common Applications

  • Marine pipe support
  • Chemical processing equipment mounting
  • Offshore platform structural support
  • Plumbing and HVAC installations in corrosive areas

⚠️ Engineering Warnings

  • Ensure proper torque is applied during installation to prevent slippage or damage.
  • Inspect U-bolts regularly for signs of corrosion or wear, especially in harsh environments, and replace as needed.

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 316 Stainless Steel U-Bolt, 4" Pipe made from?

A: This 316 Stainless Steel U-Bolt, 4" Pipe is manufactured from 316 Stainless Steel.

Q: What are the main applications?

A: Marine pipe support, Chemical processing equipment mounting, Offshore platform structural support, Plumbing and HVAC installations in corrosive areas.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 2.52"B3.28"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.