ASME B107.100-2010 pdf download

ASME B107.100-2010 pdf download.Flat Wrenches.
4.6.2 Coatings. The coating shall be adherent, smooth, continuous, and free from uncoated areas, pits, blisters, nodules, and any other conditions that would interfere with their protective value and serviceability. Plating contact marks should be kept to a minimum. The wrench shall be coated with one of the coatings in accordance with (a), (b), (c), or (d) below. The customer may specify the type of coating required.
(a) Nickel-Chromium. Wrenches shall have a protective-decorative nickel-chromium plating. The nickel thickness shall be a minimum of 0.000150 in. (0.0038 mm). The chromium thickness shall be a minimum of 0.000003 in. (0.000076mm). A nickel-iron undercoating (16% iron max.) may be substituted for nickel.
(b) Phosphate’. Wrenches shall have a chemically produced phosphate coating followed by a coating of rust preventive.
(c) Oxide. Oxide coated wrenches shall have a coating consisting of a chemically produced oxide followed by a coating of rust preventive.
(d) Alternative Coatings. Wrenches not falling within one of the coating types listed above shall be finished in accordance with predetermined requirements between manufacturer and customer. Alternative coatings may be used in lieu of nickel-chromium and shall be subjected to the Alternative Coating Test as specified in para. 5.3.
5 TESTS
Many of the tests herein are inherently hazardous, and adequate safeguards for personnel and property shall be employed in conducting these tests. These tests are designed to evaluate the tools and materials and do not condone the use of the tools in an environment, or a manner, inconsistent with safe use of the tools.
5.1 Hardness
Hardness shall be tested in accordance with ASTM E 18. Surface preparation may be necessary to ensure that the hardness of the substrate material is measured.
5.2 Proof Torque Test
Proof Torque Test shall be conducted to determine conformance with the applicable proof torque requirement specified in para. 4.5.
5.2.1 Wrench Preparation. To prepare the wrench for test, suitable reference lines may be scribed on the head and handle. After application of proof torque, examination for permanent deformation shall be made.
5.2.2 Mandrels for Wrench Openings. Suitable mandrels shall fit into the wrench opening and provide proper support and necessary strength for the proof torque applied. The wrenches shall be tested on hexagonal mandrels. Mandrels shall conform to the dimensions and tolerances of Tables 2 and 2M. Mandrels shall be hardened to not less than 55 HRC and smoothly finished on the wrench engaging surfaces.
5.2.3 AppLication of Proof Torque. The proof torque specified in the applicable table is the torque applied to the test mandrel that tends to rotate the mandrel about its longitudinal axis. Wrench openings shall be gaged prior to testing. The torque shall be applied to mandrels that are fully seated and extend through the wrenching surfaces. The force required to produce the torque shall be applied as far from the mandrel as practical.
(a) Box Ends and Slotted Box Ends. Box ends and slotted box ends shall be torqued to the proof torque. Following the removal of the proof torque, they shall be regaged. Any box end or slotted box end that does not sustain the proof torque, cracks, fractures, or slips on mandrel, or does not meet gage requirements after torquing has failed the test. Wrench failure has also occurred if there is visible permanent distortion in the handle and/or permanent deformation of the box end with respect to the handle in excess of 5 deg.
(b) Open Ends. Open ends shall be torqued to the proof torque. Following the removal of the proof torque,they shall be regaged. Open ends that do not sustainthe proof torque, cracks, fracture, or slip on the mandrelor exhibit visible handle distortion have failed the test.Wrench failure has also occurred if the open end jawsspread in excess of the “NO GO” gage as specified byASME B107.17M size by more than the following.