VERIFIED LAB DATA

YueFong Padlock Comparison

What separates a genuine YueFong padlock from a lower-cost comparison sample?This engineering comparison examinesmaterial mass,internal construction,mechanical strengthandcorrosion resistanceusing recorded laboratory test data.

147 g YueFong product mass
Alloy Internal structure
2595 N Tensile test result
240 H Neutral salt spray test
YueFong padlock comparison showing genuine and comparison samples
ANATOMICAL COMPARISON

Engineering Below the Surface

The most important differences are not always visible from the outside. Material quantity, internal architecture and component selection directly influence mechanical durability and long-term performance.

01 / MATERIAL MASS

147 g vs 92.5 g

The YueFong sample measured 147 g, compared with 92.5 g for the comparison sample.Weight alone does not define security, but when combined with a robust metal structure, greater material mass can contribute to improved resistance to impact, deformation and mechanical fatigue.

YueFong padlock weighing 147 grams
YueFong 147 g
Comparison padlock sample weighing 92.5 grams
Comparison Sample 92.5 g
02 / INTERNAL STRUCTURE

What You Cannot See Matters

Internal construction reveals differences that are hidden during a normal external inspection.The YueFong sample uses metal alloy components in its internal structure, designed to provide mechanical stability, precision and durability.The comparison sample contains plastic components in internal areas, reducing the amount of metal used in the core assembly.

Internal structure of YueFong padlock
YueFong Core Metal Structure
Internal structure of comparison padlock sample
Comparison Sample Plastic Components
MECHANICAL TEST REPORT

Destructive Tensile Testing

Samples were subjected to mechanical testing to compare their behavior under high-load conditions.

YueFong

Quality-control sample
TEST PASSED
YueFong tensile test image 1
YueFong tensile test image 2
YueFong tensile test image 3

Comparison Sample

Market reference sample
LOWER RESULT
Comparison sample tensile test image 1
Comparison sample tensile test image 2
Comparison sample tensile test image 3
Test Reference YueFong Result Comparison Sample
Tensile Test 50 mm combination padlock ≥ 2500 N 2595 N Recorded result 258 N Lower recorded result
Cutting Test Internal test parameters 15,000 N Recorded value 17,000 N Evaluated against applied criteria
LABORATORY ENVIRONMENTAL SIMULATION

240-Hour Salt Spray Test

Corrosion directly affects the durability of metal hardware.The samples were tested under neutral salt spray conditions using a saline concentration of 5% ± 1% NaCl, a chamber temperature of 35°C ± 2°C, and a total exposure duration of 240 hours.

YueFong
YueFong 24-hour salt spray test
YueFong 24-hour salt spray test second image
Stable condition
24 HRS
Comparison Sample
Comparison sample 24-hour salt spray test
Comparison sample 24-hour salt spray second image
YueFong 48-hour salt spray test
48 HRS
Comparison sample 48-hour salt spray test
YueFong 72-hour salt spray test
72 HRS
Comparison sample 72-hour salt spray test
YueFong 96-hour salt spray test
No visible oxidation recorded
96 HRS
Comparison sample 96-hour salt spray test
Oxidation signs observed
YueFong 168-hour salt spray test
168 HRS
Comparison sample 168-hour salt spray test
YueFong 192-hour salt spray test
192 HRS
Comparison sample 192-hour salt spray test
YueFong 216-hour salt spray test
216 HRS
Comparison sample 216-hour salt spray test
YueFong final 240-hour salt spray test
FINAL · Sample remained functional
240 END
Comparison sample final 240-hour salt spray test
FINAL · Severe corrosion observed

Laboratory Test Parameters

Product 50 mm Combination Padlock Test Period 2026.03.30 – 2026.04.09
Method Neutral Salt Spray (NSS) Chamber Temperature 35°C ± 2°C
NaCl Concentration 5% ± 1% Total Duration 240 Hours
TECHNICAL DOCUMENTATION

Data You Can Verify

■ LAB REPORT · PDF

240-Hour Salt Spray Test Report

50 mm combination padlock · YueFong laboratory data
VIEW PDF REPORT →
■ LAB REPORT · PDF

Destructive Tensile Test Report

Recorded maximum load: 2595 N
VIEW PDF REPORT →

YueFong Padlock Comparison: Materials, Strength and Quality Control

A meaningful YueFong padlock comparison requires more than judging external appearance.Mechanical security depends on material selection, internal architecture, component precision, resistance to high loads and long-term corrosion protection.

In this comparison of the YueFong 50 mm combination padlock, the tested sample recorded a mass of 147 g and a tensile test result of 2595 N.Internal inspection also shows differences in the use of metal components compared with plastic components found in the comparison sample.

Environmental durability was evaluated through a 240-hour neutral salt spray test.Photographic records captured at multiple intervals provide a visual comparison of how the two samples changed during accelerated corrosion exposure.

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