WYJ029-2006                      13MnNiMo54(DIWA 353 )

1. The range: the rules apply to thickness≤150 mm 13 MnNiMo54 (DIWA 353) steel production and inspection.

2. The supply condition: 890 ~ 950 ℃normalized + 620 ~ 680 ℃tempering.

3. The size of the steel plate, appearance, weight, allow deviation

The steel plate size and shape according to the relevant requirements EN10029 tolerance, which according to the thickness tolerance EN10029 grade B, straightness tolerance EN10029 according to the class B, straightness press N level.

4. The chemical composition of the steel plate should be consistent with the requirements of the table 1.

Table 1

5.mechanical property

Steel normalized  + tempering the mechanical properties of the (horizontal) should meet the provisions of the table 2。

Table 2

Note: (1) listedin the table impact value for the average of the three specimens, allow a impact value less than rating, but they should not be below and J.

(2) according to the provisions of the talks, sample by simulation welding heat treatment, simulation of properties of the heat treatment after welding shall meet table 2 regulations.

6. Steel plate can be according to provisions of the tensile properties of high temperature inspection talks, temperature clearly in the contract, the results should be in accordance with table 3 requirements.

Table 3