Cold rolled steel sheet, electrogalvanized cold-rolled steel sheet, hot-dip galvanized cold-rolled steel sheet, alloyed hot-dip galvanized cold rolled steel sheet, and manufacturing methods of the same

1. A cold-rolled steel sheet, comprising:

in mass %,

C: 0.0005 to 0.0045%;

Mn: 0.80 to 2.50%;

Ti: 0.002 to 0.150%;

B: 0.0005 to 0.01%;

Si: 0 to 1.0%;

Al: 0 to 0.10%;

Nb: 0 to 0.040%;

Mo: 0 to 0.500%;

Cr: 0 to 3.000%;

W: 0 to 3.000%;

Cu: 0 to 3.000%;

Ni: 0 to 3.000%;

Ca: 0 to 0.1000%;

Rem: 0 to 0.1000%;

V: 0 to 0.100%;

P: 0.15% or less;

S: 0.010% or less;

N: 0.006% or less,

in which (1) Expression below is satisfied, and

a balance comprising iron and impurities, wherein

at the position of ¼ thickness of a sheet thickness, a random intensity ratio (A) of the {332}<110> orientation is 3 or less, a random intensity ratio (B) of the {557}<9 16 5> orientation and a random intensity ratio (C) of the {111}<112> orientation are both 7 or more, and {(B)/(A)≧5} and {(B)>(C)} are satisfied,

0.07≦(Mn(mass %)−Mn*(mass %))/(B(ppm)−B*(ppm))≦0.2  (1),

(1) Expression above is set as follows:

Mn*(mass %)=55S(mass %)/32,

B*(ppm)=10(N(mass %)−14Ti(mass %)/48)/14×10000, and

in the case of B*<0, B* is set to 0.

2. The cold-rolled steel sheet according to claim 1 , comprising:

one or two of, in mass %,

Si: 0.01 to 1.0%; and

Al: 0.010 to 0.10%.

3. The cold-rolled steel sheet according to claim 1 , comprising:

in mass %,

Nb: 0.005 to 0.040%.

4. The cold-rolled steel sheet according to claim 1 , comprising:

one or two or more of, in mass %,

Mo: 0.005 to 0.500%;

Cr: 0.005 to 3.000%;

W: 0.005 to 3.000%;

Cu: 0.005 to 3.000%; and

Ni: 0.005 to 3.000%.

5. The cold-rolled steel sheet according to claim 1 , comprising:

one or two or more of, in mass %,

Ca: 0.0005 to 0.1000%;

Rem: 0.0005 to 0.1000%; and

V: 0.001 to 0.100%.

6. The cold-rolled steel sheet according to claim 1 , wherein a Young's modulus in a rolling perpendicular direction is 225 GPa or more, a Young's modulus in a rolling direction and a Young's modulus in a 45° direction with respect to the rolling direction are both 206 GPa or more, and an average r value is 1.4 or more.

7. An electrogalvanized cold-rolled steel sheet, wherein on the surface of the cold-rolled steel sheet according to claim 1 , electrogalvanizing is performed.

8. A hot-dip galvanized cold-rolled steel sheet, wherein on the surface of the cold-rolled steel sheet according to claim 1 , hot-dip galvanizing is performed.

9. An alloyed hot-dip galvanized cold-rolled steel sheet, wherein

on the surface of the cold-rolled steel sheet according to claim 1 , alloying hot-dip galvanizing is performed.