Navships Test Block

Description
Used for distance amplitude correction, sensitivity levels and flaw depth information.

Inch
Contains six 3/64″ diameter side-drilled through-holes at distances of 0.25″ to 2.75″ in 0.25″ increments. MTDs are engraved near both scan edges on one face. In accordance with MIL-STD-271G Figure 9, and NAVSHIPS Specification 0900-006-3010/Section 6. Also known as a “Mare Island block.” This block is surface ground to a 32 Ra finish on all surfaces, and the steel version is nickel-plated.

•Dimensions: 12.000″ x 3.000″ x 1.250″
•material: 1018 Steel, stainless steel , aluminum
•plastic carrying case
• We also manufacture a Navy version (3020 block) with rougher scanning surfaces (125 to 250 Ra max), and an extra hole at 0.125″ MTD.

Metric
Contains six 1.2mm diameter side-drilled through-holes at distances of 6.25mm to 68.75mm in 6.25mm increments. MTDs are engraved near both scan edges on one face. Metric equivalent of U.S. customary block, based on MIL-STD-271G Figure 9 and NAVSHIPS Specification 0900-006-3010/Section 6. This block is surface ground to a 32 Ra finish on all surfaces.

•Dimensions: 30mm x 75mm x 300mm
•Metric version.
•material: 1018 Steel, stainless steel , aluminum
•plastic carrying case
Package including
1 calibration block
1 certificate
1 block case