An ISHB 300 with plastic section modulus of 921.68 × 103 mm3, flange width of 250 mm, the yield stress of 250 N/mm2 is embedded in a pocket base to develop its strength with M 25 concrete in design of beam-column. The required depth will be nearly
1
475 mm
2
425 mm
3
375 mm
4
325 mm