ASTM B425-99 pdf free.Standard Specification for Ni-Fe-Cr-Mo-Cu Alloy (UNS N08825 and UNS N08221) Rod and Bar.
The material shall conform tothe mechanical properties specified in Table 2.The permissible varia-tions from the specified dimensions as measured on thediameter or between parallel surfaces of cold-worked rod andbar shall be as prescribed in Table 3, and of hot-worked rod andbar as prescribed in Table 4.Hot-worked rods and cold-worked rods(except “forging quality”‘) all sizes, in straight lengths, shall notbe out-of-round by more than one half the total permissiblevariations in diameter shown in Table 3 and Table 4, except forhot-worked rods 1/2 in. (12.7 mm) in diameter and under， whichmay be out-of-round by the total permissible variations indiameter shown in Table 4.Cold-worked bars will have practically exactangles and sharp corners.When the surfaces of hotworked products are to be machined,the allowances prescribed in Table 5 are recommended fornormal machining operations.The permissible variations in length of cold-worked and hot-worked rod and bar shall be as prescribed inTable 6.Rods and bars ordered to random or nominal lengthswill be furnished with either cropped or saw-cut ends; materialordered to cut lengths will be furnished with square saw-cut ormachined ends.
The permissible variations in straightness of cold-worked rod and bar as determined by the departure fromstraightness shall be as prescribed in Table 7.
The permissible variations in straightness of hot-worked rod and bar as determined by the departure fromstraightness shall be as specified in Table 8.
The material shall be uniform in quality and condition,smooth，commercially straight or flat,and free of injuriousimperfections.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 (227 kg) of material in thesame size and condition. A single piece weighing over 500 lbshall be considered as one lot.Representative samples fromcach lot shall be taken during pouring or subsequent processing.
roduct (check) analysis shall be wholly the responsibility of the purchaser.ASTM B425 pdf download.