성형성이 우수한 열연 강판을 제공한다.질량％으로 C≦0.15％, Si≦1.5％, Mn≦1.5％, P≦0.2％, S≦0.1％, Al:0.001~0.10％, N≦0.01％을 포함하고 잔부가 Fe 및 불가피한 불순물로 구성되며, 강판지철 표면의 조도가 표면 거칠기로 0.8 이상 1.6μm이하인 것을 특징으로 하는 가공성이 우수한 프레스 가공용 열연 강판. 또한 상기 성분에 더하여 질량％으로 Cr:0.1~1.5％, Ni:0.1~1.5％, Mo:0.1~1.5％, Cu:0.1~1.5％, Nb:0.01~0.05％, Ti:0.01~0.1％중 1종 또는 2종 이상을 함유시킨다.
To provide a hot rolled steel sheet which has excellent formability.  The hot rolled steel sheet for press working excellent in workability has a composition containing, by mass,  0.15% C,  1.5% Si,  1.5% Mn,  0.2% P,  0.1% S, 0.001 to 0.10% Al and  0.01% N, and the balance Fe with inevitable impurities, and has a roughness of the surface of ferrite in the steel sheet of 0.8 to 1.6 μm by surface roughness. The steel sheet further contains one or more kinds selected from 0.1 to 1.5% Cr, 0.1 to 1.5% Ni, 0.1 to 1.5% Mo, 0.1 to 1.5% Cu, 0.01 to 0.05% Nb and 0.01 to 0.1% Ti in addition to the above components.