Barcol Impressor Hardness Tester
Article No. 11808
Barcol Hardness Tester, 934-1
- For fiberglass, soft metals such as aluminum and its alloys, brass, copper, and some of the harder plastics and fiberglass.
- Approximate range 25 to 150 (HB) Brinell (10mm ball 500 KG load).
- This unit meets American Society for Testing and Material (ASTM) Standard D-2583.
Features
- Hand-held portable hardness tester convenient for testing the hardness of aluminum, aluminum alloys, copper, brass and other materials including plastics and fiberglass.
- The Impressor is designed for use on fabricated parts and assemblies as well as on raw stock.
- Easy to Use, no experience required; can be used in any position and in any space that will allow for the operator's hand.
- The hardness reading is instantly indicated on the dial, which is divided into one hundred graduations. No waiting, preloading or separate measurements.
- Weighs only 1 lb. 2 oz. and comes complete with carrying case, adjusting wrench and two spare indenters.
- Best suited for testing homogeneous materials. Material of granular, fibrous or coarse structure will produce a wide variation in hardness readings because of the small diameter of the indenter point.
Technical Attributes
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- Data
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Conversion Chart 934-1 935 936 Brinell 100mm/500kg Vickers 5 kg Webster Model B Rockwell B Rockwell E Rockwell F Rockwell H 35 21 32 36 22 35 37 23 37 38 24 40 39 25 42 40 25 26 45 41 26 27 47 42 26 28 49 43 27 29 51 44 27 30 54 45 27 30 56 46 28 31 58 47 29 32 23 60 48 30 33 0.7 26 62 49 31 34 1.3 28 64 50 32 35 1.9 31 66 51 33 36 2.5 34 68 52 6 34 38 3.1 38 70 53 9 35 39 3.6 39 30 72 54 12 37 40 4.2 41 34 73 55 15 38 41 4.7 44 37 75 56 18 39 43 5.3 46 40 77 57 21 40 44 5.8 48 43 78 58 24 42 45 6.3 50 46 80 59 27 44 47 6.8 53 48 82 60 30 45 49 7.3 55 51 83 61 32 47 50 7.6 57 54 85 62 35 48 52 8.3 59 56 86 63 38 50 54 8.8 61 59 88 64 40 52 56 9.2 63 61 89 65 43 54 58 9.7 65 63 90 66 45 55 60 10.1 67 66 92 67 48 58 62 10.8 69 68 93 68 22 50 60 65 11.0 71 70 94 69 28 52 62 67 11.4 73 72 95 70 30 54 64 70 11.8 17 75 74 97 71 34 57 67 72 12.2 23 76 75 98 72 38 59 69 75 12.6 28 78 77 99 73 41 61 71 78 12.9 33 80 79 100 74 45 63 73 81 13.3 38 81 80 101 75 48 65 76 85 13.7 42 83 82 102 76 51 67 80 88 14.0 47 84 83 103 77 54 69 84 92 14.3 51 86 85 104 78 57 70 87 95 14.7 55 87 86 105 79 60 72 90 99 15.0 59 88 88 106 80 63 74 94 103 15.3 63 90 89 106 81 68 76 97 108 15.6 66 91 90 107 82 69 77 100 112 15.9 70 92 91 108 83 71 79 105 117 16.2 73 94 92 109 84 74 80 109 121 16.4 76 95 93 109 85 78 82 113 126 16.7 79 96 94 110 86 79 83 117 131 16.9 81 97 95 111 87 81 85 122 137 17.2 84 98 96 111 88 83 88 126 142 17.4 86 99 97 112 89 85 87 131 17.6 88 100 98 112 90 87 88 135 17.8 90 101 98 113 91 139 18.0 102 99 114 92 145 18.2 103 100 93 18.4 103 101 94 18.6 104 101 95 18.7 105 102 96 18.9 106 102 97 19.0 106 103 98 19.2 107 99 19.3 107 100 19.4 108
Standards
Meets ASTM D2583; MIL-P-17549-C (SHIPS)
Procedure
- For accurate readings, material should be at least 1/32" thick and large enough for a minimum distance of 1/8" in any direction from the indenter point to the edge of the specimen. The testing area should be smooth and free from mechanical damage.
- Simply exert a light pressure against the instrument to drive the spring-loaded indenter into the material.
- The indenter must be perpendicular to the surface being tested.
- On very soft metal, the highest reading should be used since cold flow permits the spring-loaded indenter to continue penetration. Note: Physical characteristics of very soft materials are such that uniform correlation between different hardness measuring systems cannot be established. For this reason, no conversion curves are offered for the 935 and 936 models. We recommend that Impressor hardness limits for each material be established by test.
Delivery Content
Comes complete with carrying case, 2 spare indenters, adjusting wrench , 2 uncertified test discs
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