Page 1504 - MISUMI SINGAPORE Economy Series

Economy Series Product Overview
Flat Washers / Metal Collars

Q Corrosion Resistance Test of MISUMI Economy Series

Salt Spray Test MISUMI standard product MISUMI Economy Series Generic products on the market*
Surface Treatment Electroless Nickel Plating Trivalent Chromate Treatment Trivalent Chromate Treatment
Plating Thickness 4~5μm 5~6μm 1~2μm

Before Test

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Screws / Collars / Magnets / Keys / Shims Test Result No obvious corrosion or rusting No obvious corrosion or rusting Severe corrosion and rusting
Test 24H

Corrosion resistance - MISUMI Economy series is equivalent to MISUMI standard product

Screws · Test Method: Conduct the corrosion test according to the standard ASTM B117 test method
· Test Conditions: 1Salt spray test (5%NaCL35°C) 2Volume of salt solution: 1.0~2.0ml/hr 3Salt solution PH value: 6.5~7.2
* The above data is limited to sample test results, which is for reference only.
P.1495 * Generic products on the market are similar products randomly purchased by our company from online or offline markets
Washers Q Effects on the washer deformation due to differences in the contact area
between the washers with different materials and the connectors

P.1498 2N·m 2N·m
Metal Collars Screws Screws Flat

P.1501 Contact Flat Washers Contact Washers
Surface
Surface
Connector
Connector
Shim Tapes
P.1502
Parallel Keys Small Contact Surface Large Contact Surface

(Force Diagram 1)
(Force Diagram 2)
P.1504 Washer Deformation by Force Deformation Diagram
Category Material Thickness Before
Magnets MISUMI standard product Equivalent to S45C Small Contact Surface Large Contact Surface Applying Force t1

0.01mm
1.0mm
P.1507 MISUMI Economy Series Low Carbon Free Cutting Steel 2.4mm 0.02mm
Thickness After
Applying Force t2
MISUMI standard product SPCC (Cold Rolled Carbon Steel) 3.4mm 0.08mm Deformation = t2-t1
TIPS The larger the contact area between the washer and the connector, the smaller the deformation of the washer after applying force

* Dimensions of Testing Washer Sample: 16×4×1/10×3×1/(Unit mm), Bolt: M4/M3, Acting Torque 2N·m
* The above data is limited to sample test results, which is for reference only.

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