EN10025-5-2005(12)

EN 10025-5:2004 (E)

6.2 Deoxidation 6.2.1 6.2.2

The method of deoxidation shall be as given in Table 2. The deoxidation methods are designated as follows:

a) FN - Rimming steel not permitted;

b) FF - Fully killed steel containing nitrogen binding elements in amounts sufficient to bind the available nitrogen

(for example min. 0,020 % total aluminium). The usual guideline is a minimum aluminium to nitrogen ratio of 2:1, when no other nitrogen binding elements are present. Such other elements shall be reported in the inspection document.

6.3 Delivery conditions

The delivery condition of long products and continuous mill flat products is at the manufacturer's discretion. The delivery condition of quarto mill products can only be +AR or +N at the manufacturer's discretion. The delivery condition +AR or +N can be agreed at the time of the order. See option 19a.

If an inspection document is required (see 8.2) the delivery condition shall be indicated in it with its specific symbol (+N, +AR or +M). In case the products are ordered in the delivery condition +N or +AR the specific symbol (+N or +AR) shall be added to the designation (see 4.2.2).

7 Requirements

7.1 General

The following requirements apply when sampling, preparation of test pieces and testing specified in Clauses 8, 9 and 10 are carried out.

7.2 Chemical composition

7.2.1 Table 2. 7.2.2

The chemical composition determined by ladle analysis shall comply with the specified values of The limits applicable for the product analysis are given in Table 3.

The product analysis shall be carried out when specified at the time of the order. See option 2.

7.2.3 For steel grade S235 a maximum carbon equivalent value of 0,44 % and for steel grade S355 a maximum carbon equivalent value of 0,52 % based on the ladle analysis shall apply for all thicknesses. For the carbon equivalent value formula see 7.2.3 of EN 10025-1:2004.

7.3 Mechanical properties

7.3.1 General

7.3.1.1 Under the inspection and testing conditions as specified in Clauses 8, 9 and 10 and in the delivery condition as specified in 6.3 the mechanical properties shall comply with the values given in Tables 4 and 5.

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