Solid Radioactive Waste Strategy Report.pdf - UK EPR

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EPR UK N° NESH-G/2008/en/0123 REV. A PAGE 92 / 257 Input Data Composition of Material · Steels The materials specified for fabrication of the reactor pressure vessel and associated internal components are as follows: · Z2 CN19-10 + N2 stainless steel for all internal components near the core; · Z3 CN18-10 + N2 stainless steel for others internals components; · 16 MND 5 ferritic steel for the reactor pressure vessel (lined with stainless steel for corrosion protection). The metallurgical compositions of each element have been maximised to the upper bound. Compositions used in calculations are given in Table 21. The density is normalised to 1.0; it means that calculations are made for 1 gram of material. Trace steel impurities have not at this stage been modelled.
EPR UK N° NESH-G/2008/en/0123 REV. A PAGE 93 / 257 TABLE 21: COMPOSITION OF METALS USED IN CALCULATIONS Z2 CN 19-10 + N2 Z3 CN 18-10 + N2 16 MND 5 Element Mass ratio Mass ratio Mass ratio DENSITY 1.0672000 1.0787680 1.0297300 C 0.00035 0.00040 0.00220 Si 0.0100 0.0100 0.0030 Mn 0.0200 0.0200 0.0160 Ni 0.1000 0.1100 0.0080 Cr 0.2000 0.2000 0.0025 Mo 0.0057 S 0.00015 0.0002 0.0001 P 0.00030 0.00035 0.00008 Cu 0.0100 0.0100 0.0008 B 0.000018 N 0.0008 0.0008 Ta Co 0.0006 0.002 0.0003 Fe 0.7250 0.7250 0.9907 Nb Ti Eu Ag Pb V Se Al 0.0004 W Concrete Concrete composition used in calculations is given in Table 22. The composition examined here was supplied by the civil works department for a particular EPR construction site. This composition is relatively rich in chemical elements (and therefore interesting for the activation calculation) but it would be different and specific for each EPR due to the differing sources of aggregate used.
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A 2008-11-26 Sarah Greenwood Gary C
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