Technical conditions for plates of ABS EQ56-Z35

1.       Scope

The technical conditions apply to plates of EQ56-Z35 with thickness not more than 100mm. (8mm-100mm)

2.       Dimension, Shape, Weight and Permissible Deviation

The dimension, shape, weight and permissible deviation shall meet the requirements of ABS rules. Thickness tolerance is -0.3mm.

3.       Technical conditions

3.1   Chemical composition (Ladle analysis)

The chemical composition of plates shall be accordance with the following table 1.

Table 1 Chemical composition (Ladle analysis)

Note: Per batch furnace number product analysis [N]<200ppm.

3.2   Steel making process: EAF+LF/VD

3.3   Tensile properties

The tensile properties of EQ56-Z35 shall meet the requirement as table 2.

Table 2 Tensile properties

3.4   Impact properties

Impact test in the longitudinal and transverse for plates of EQ56-Z35 shall meet the requirements per table 3.

Table 3 Impact properties

3.5   Grain size

Grain size for plates shall be according to ABS rules.

3.6   Surface quality

The surface quality of plates shall be accordance with ABS rules

3.7   Ultrasonic inspection

Plates shall be ultrasonic inspected per ASTM A578/A578M level C.

3.8   Test method and inspection rules

Test items, sampling quantity, sampling method and test method shall conform to table 4.

Table 4 Test items for plates

4.       Package, marking and certificate

Package, marking and certificate shall conform to ABS rules

5.       The third party inspection

The chemical composition, tensile test and Charpy -V impact test for plates of EQ56 shall be witnessed by surveyor of ABS.

6.       Delivery conditions

The delivery conditions for plates of EQ56 shall be Normalized.

7.       Other requirements

The other requirements for plates of EQ56 shall be accordance with ABS rules.

MTC accordance with EN10204: 2004 3.2