Webster Hardness Testers

The W-B75 / W-BB75 Webster hardness tester of is light weight, fast and easy to use. Hardness testing with a Webster tester is simply clamping on the specimen, and the hardness value is directly shown on the dial. Webster testers are especially suitable for on site fast, non-destructive. Tianxing Webster testers comform to China non-ferros industrial standard YS/T420 and ASTM B647.

W-B75 is designed based on the Model. It uses a different penetrator and a different load spring with a greater test force. W-B75 is suitable to test brass and very hard aluminum alloy. W-BB75 uses the same penetrator as W-B75 and the same load spring as W-20. This combination gives W-BB75 better sensitivity on softer copper and copper alloys. There are also modified models W-B75b and W-BB75b for testing slim pipes.

• Compact and light weight
• One hand operation
• Fast reading
• Easy conversion

• Heat treatment quality control
• Alloy composition quality control
• Acceptance inspection
• Quality check at the production line with reference to other hardness testers or tensile strength testers

Range：0-20 HW

Accuracy：0.5 HW

Weight：0.5 kg

Dimensions:
Minimum Thickness:0.4 mm (W-B75, W-BB75, W-B75b, W-BB75b)
Maximum Thickness: 6mm (W-B75, W-BB75) 、13mm (W-B75b, W-BB75b)
Inner Diameter: φ>10mm (W-B75, W-BB75)、 φ>6mm (W-B75b, W-BB75b)

Webster hardness values can be converted Rockwell hardness (HRB, HRF) through conversion tables.