ISO 4955:2016 pdf free download.Heat-resistant steels Aciers refractaires. 7.3 Chemical composition 7.3.1 The chemical composition requirements given in Table 2 apply with respect to the chemical composition of the cast analysis. 7.3.2 The product analysis may deviate from the limiting values for the cast analysis given in Table 2 by values listed in Table 3. 7.4 Mechanical properties 7.4.1 Mechanical properties at room temperature The mechanical properties at room temperature as specified in Tables 6 and 2 apply for the relevant specified heat treatment condition. This does not apply to the process route 1U (hot rolled, not heat- treated, not descaled). If, by agreement at the time of ordering, the products are to be supplied in a non- heat-treated condition, the mechanical properties specified in Tables 6 and 2 shall be obtainable from reference test pieces which have received the appropriate heat treatment (simulated heat treatment). 7.4.2 Mechanical properties at elevated temperatures The mechanical properties at elevated temperature as specified in Tables apply for each specified heat treatment condition. This does not apply to the process route 1U (hot rolled, not heat-treated, not descaled) and to semi-finished products. The tensile test at elevated temperature shall be carried out at temperature…