ASTM B446-03 pdf free.Standard Specification for Nickel-Chromium-Molybdenum-Columbium Alloy (UNS N06625), Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219), and Nickel-Chromium-Molybdenum-Tungsten Alloy (UNS N06650) Rod and Bar.
A lot for chemical analysis shall consist of one heat.9.1.2 A lot for mechanical properties testing shall consist ofall material from the same heat, nominal diameter or thickness,and condition. Where material cannot be identified by heat,a lotshall consist of not more than 500 lb (227kg) of material in thesame size and condition except that a single piece weighingover 500 lb (227 kg) shall be considered as one lot.Representative samples fromeach lot shall be taken during pouring or subsequent processing.Product (check) analysis shall be wholly the respon-sibility of the purchaser.Samples of the material toprovide test specimens for mechanical properties shall be takenfrom such locations in each lot as to be representative of thatlot. Chemical Analysis-One test per lot.One test per lot.Tension test specimens shall be taken from material inthe final condition and tested in the direction of fabrication. All rod and bar shall be tested in full cross sectionsize when possible. When a full cross section size test cannotbe performed, the largest possible round specimen shown inTest Methods E 8 shall be used.Longitudinal strip specimensshall be prepared in accordance with Test Methods E 8 forrectangular bar up to !/2 in. (12.7 mm), inclusive, in thicknessesthat are too wide to be pulled full size. Inspection of the material shall be made as agreed uponbetween the manufacturer and the purchaser as part of thepurchase contract.Material tested by the purchaser that fails to conform tothe requirements of this specification may be rejected.Rejec-tion should be reported to the producer or supplier promptlyand in writing. In case of dissatisfaction with the results of thetest, the producer or supplier may make claim for a rehearing.
When specified in the purchase order or contract,amanufacturer’s certification shall be furnished to the purchaserstating that the material was manufactured,tested,and in-spected in accordance with this specification and that testresults on representative samples meet specification require-ments. When specified in the purchase order or contract，areport of the test results shall be furnished.ASTM B446 pdf download.