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ISO 683-17:2014 pdf free

ISO 683-17:2014 pdf free.Heat-treated steels, alloy steels and free-cutting steels
A number of options are specified in this part of ISO 683 and listed below. If the purchaser does not indicate the wish to implement any of theses options, the products will be supplied in accordance with the basic specifications of this part of ISO 683 (see 5.1).
a) If another surface condition than ‘hot-worked’ or a special surface quality is required, the surface condition (see Table 2), and the surface quality (see 7.5).
b) Any requirement concerning the hardenability (+H) (see 7.1.3 and Table 5) and the verification of hardenability and if agreed the information about calculation of the hardenability (see 9.2.2).
c) Any supplementary requirement that shall be complied with, the symbol and, where necessary, the details of this supplementary requirement (see Annex A).
EXAMPLE 50 hot-rolled round bars according to ISO 1035-1 with nominal diameter of 50,0 mm, nominal length of 8000 mm and with tolerance class S on diameter of±0,40 mm and tolerance class L2 on length of +100/0 mm in accordance with ISO 1035-4 and with hot-worked surface made of steel grade ISO 683-17, 100Cr6 (see Table 3) in annealed condition to achieve spheroidized carbides (+AC), with an inspection certificate 3.1 in accordance with ISO 10474
Where the steel is not ordered according to hardenability requirements, i.e. where the steel type designations of Table 3 and not the designations given in Table 5 are applied, the requirements for hardness specified in Table 6 (see also Table 1, column 9) apply, as appropriate, for the particular heat-treatment condition. In this case, the values of hardenability given in Table 5 are for guidance purposes only.
Where the steel is ordered to hardenability requirements by using the designations given in Table 5 the values of hardenability given in Table 5 apply in addition to the requirements cited in Table 1, column 9 (see footnote b to Table 3).
The characterization of non-metallic inclusions is critically important to the fatigue life of bearings. Therefore all bearing steels shall have a certain degree of cleanliness. The requirements for the content of non-metallic inclusions apply in every case; however, verification requires a special agreement, see A.6.ISO 683-17 pdf download.

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