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W-20 series Webster Aluminum alloy metal hardness tester webster hardness tester

Wechsler hardness tester is the preferred instrument for testing the mechanical properties of aluminum alloy profiles. It conforms to the Chinese non-ferrous standard YS/T420-2004 and the American standard ASTM B647-84 (2000).

Wechsler hardness tester is an instrument which can quickly test the hardness of aluminum alloy on site. Easy to use, one card can be, hardness value directly read, high efficiency, good reliability.

Wechsler hardness tester is a certain shape of hard steel pressing needle, under the action of standard spring test force pressed into the sample surface, with the pressing depth of the needle to determine the material hardness, defined 0.01mm pressing depth as a Wechsler hardness unit. The Vickers hardness unit is expressed as HW.

Webster hardness tester is a small, portable instrument, small volume, light weight, it can be single hand operation, quick, convenient and nondestructive test material hardness, it needn’t sampling, the operation skill is not high, very suitable for the production site on the material for rapid detection of aluminium alloy profiles, pipes, plates, aluminum parts, and other soft metal hardness. It is especially suitable for rapid, non-destructive conformity inspection of batch products on production site, sales site or construction site.

Wechsler hardness tester can also be used to test the hardness of copper, brass, mild steel and other materials.

Vickers hardness tester is in line with the national metrological verification regulation JJG944-201X “Metal Vickers hardness tester”.

 

W-20 series Webster Aluminum alloy metal hardness tester webster hardness tester

The instrument features

Pressure needle imported special steel, new technology made of pressure needle, high hardness, excellent wear resistance.

Pointers Pointers of high strength are not easy to bend and deform after long-term use or wrong operation.

Table window high strength, high toughness table window glass, is not easy to break after impact.

Handle forged aluminum alloy material, anodized upper handle, beautiful, wear resistance, pollution resistance.

Hardness blocks A standard Wechsler hardness block tested by a standard hardness machine with a test report attached.

High quality fine parts processing, precise machine assembly, strict quality inspection, to ensure the high quality of the instrument.

Good stability full degree point stability, correction point stability, pointer without “crawling”.

Easy conversion vickers hardness value can be converted into Vickers, Rockwell, Brinell hardness value.

Technical parameters

Range: 0~20HW (equivalent to 20~110HRE)

Value error: 0.5hw (5~17HW)

Repeatability error: 0.5hw (5~17HW)

Weight: 0.5 kg

Application shows that

W-20: General purpose, for ordinary aluminum profiles

W-20A: used for aluminum profiles with thickness less than 13mm

W-20B type: used for aluminum pipe with inner diameter greater than 6mm

W-B75 type: used for brass tube, brass belt

W-BB75 type: used for red copper pipe, red copper belt

W-B92 type: used for soft stainless steel, cold rolled steel strip

Standard Configuration	Optional Configuration
The host Vickers hardness blocks The standby pressure needle Correction wrench Small screwdriver Instrument box	Press the needle Vickers hardness blocks Watch window

Instrument selection

Model	Range of application	hardness range	workpiece dimension( mm )
W-20	Aluminum alloy	25~110HRE 58~131HV	Thickness 0.6-6 inner diameter > 10
W-20a			Thickness 0.6-13 inner diameter > 10
W-20b			Thickness 0.6-8 inner diameter  > 6
W-B75	brass	63~105HRF	Thickness 0.6-6 inner diameter > 10
W-B75b			Thickness 0.6-8 inner diameter > 6
W-BB75	Purple copper	18~100HRE	Thickness 0.6-6 inner diameter > 10
W-BB75b			Thickness 0.6-8 inner diameter > 6
W-B92	Stainless steel strip Cold rolled thin steel strip	50~92HRB	Thickness 0.4-6 inner diameter >10