Specification Brand : YUSHI INSTRUMENTS BulletPoint : Press a steel ball with a diameter of 10mm into the surface of the material with a certain load (for example, 3000kg), and keep it for a period of time. The ratio between the load and the indentation area is the Brinell hardness value (HB) BulletPoint1 : Thickness:2.5mm 5mm 10mm 20mm BulletPoint2 : Length*Width:80mm*20mm BulletPoint3 : Please note that the prices is only one pieces 4 Step 2.5mm 5mm 10mm 20mm Ultrasonic Step Test Blocks. BulletPoint4 : Used for thickness and linearity calibration. BulletPoint5 : If you need to buy other Ultrasonic Calibration Blocks,please let me know,i will help you to solve it. Color : Silver ExternallyAssignedProductIdentifier : 8716569785419 ExternallyAssignedProductIdentifier1 : 0794590626381 ExternallyAssignedProductIdentifier2 : 794590626381 ItemDisplayWeight : 0.15 kilograms ItemName : YUSHI ultrasonic Test Block AWS D1.1/DA.1M-2015 (SC) ItemPackageDimensions_Height : 4 centimeters ItemPackageDimensions_Length : 10 centimeters ItemPackageDimensions_Width : 4 centimeters ItemTypeKeyword : hardness-testing-blocks Manufacturer : YUSHI INSTRUMENTS Material : aluminum_6063 NumberOfItems : 100 PartNumber : FB-901-00 ProductDescription : YUSHI ultrasonic Test Block AWS D1.1/DA.1M-2015 (SC) ProductSiteLaunchDate : 2021-11-07T04:14:34.495Z Size : SC UnspscCode : 41113700