SAE AMS 4902L:2018 pdf free

SAE AMS 4902L:2018 pdf free.Titanium Sheet, Strip, and Plate Commercially Pure Annealed 40.0 ksi (276 MPa) Yield Strength
Alloy shall be produced by electron beam cold hearth or plasma arc cold hearth melting method, or shall be multiple melted with the final melting cycle under vacuum. When multiple melted, the first melt shall be made using a vacuum consumable electrode, nonconsumable electrode, electron beam cold hearth, or plasma arc cold hearth melting practice. The subsequent melt or melts shall be made using vacuum arc remelting (VAR) practice. Alloy additions are not permitted in the final remelt cycle.
Hot rolled, annealed, descaled, and flattened, having a surface appearance comparable to a commercial corrosion-resistant steel No. 1 finish (see 8.2). Plate product shall be produced using standard industry practices designed strictly for the production of plate stock to the procured thickness. Bar, billet, forgings, or forging stock shall not be supplied in lieu of plate.
The product shall be annealed by heating to a temperature within the range 1200 to 1500 °F (649 to 816°C), holding at the selected temperature within ±25 °F (±14 °C) for a time commensurate with the thickness and the heating equipment and procedure used, and cooling at a rate that will produce product meeting the requirements of 3.5.Product under 0.1875 inch (4.763 mm) in nominal thickness shall withstand, without evidence of cracking when examined at 20X magnification, bending in accordance with ASTM E290 through an angle of 105 degrees around a radius equal to the bend factor shown in Table 3 times the nominal thickness of the product with the axis of bend parallel to the direction of rolling. In case of dispute, results of bend tests using the end supported guided bend test procedure shall govern.
The producer shall furnish with each shipment a report showing the producer identity, country where the metal was melted (i.e., final melt in the case of metal processed by multiple melting operations), results of tests for composition of each heat and for the hydrogen content, tensile, and bending properties, and grain size of each lot and stating that the product conforms to the other technical requirements. This report shall include the purchase order number,lot number, AMS4902L, type, specific annealing treatment used, product form, size, and quantity.SAE AMS 4902L pdf free download.