Technical conditions for plates of S275J0

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Posted On

4-Dec-13

Product Details

le analysis)
C Si Mn P S Cu N
Max 0.18 - Max 1.50 Max 0.03 Max 0.03 Max 0.55 Max 0.012

3.2 Steel making process: EAF+LF/VD
3.3 Carbon equivalent (CEq)
Carbon equivalent shall be not more than 0.42 for plates of S275J0.
Carbon equivalent shall be calculated as follows:
CEq=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15 (%)
3.4 Mechanical properties
The mechanical properties of S275J0 shall meet the requirement as table 2.
Table 2 Tensile properties
Thickness mm Yield strength MPa Tensile strength MPa 0C Akv (J) Elongation %
6-16 Min 275 410-560 Min 27J Min 21
17-40 Min 265
41-63 Min 255 Min 20
64-80 Min 245 Min 19
81-100 Min 235
101-150 Min 225 400-540 Min 19

3.5 Surface quality
The surface quality of plates shall be accordance with EN10025-2-2004
3.6 Ultrasonic inspection
Plates shall be ultrasonic inspected per EN10160-1999 S2E2.
3.7 Direction of Thickness
Through thickness tension testing shall be done according to EN10164 (%Re ≥ 25)
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
No. Test item Quantity, Piece Sampling method Test method
1 Chemical composition (Ladle analysis) 1 (per batch furnace number) EN10028-1 EN10028-1
2 Tensile test 1 (Rolled pc) EN10028-1 EN10028-1
3 Impact test at 0C 1 (Rolled pc) EN10028-1 EN10045-1
4 Thickness tension 3 (Rolled pc) EN10028-1 EN10164

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