Steyn bags career-best 11-60 while AB de Villiers equals world record for most dismissals.
South Africa have clinched the first Test of the series over Pakistan following a six-wicket haul in the morning session.
Pakistan were all out for 268 during an extended morning session as South Africa took a 1-0 lead in the three-match series with more than a day and a half to spare.
Having been set an improbable target of 480, Pakistan progressed to 203-4 continuing from their overnight 183-4 before the second new ball was taken. Dale Steyn took full advantage of by dismissing Misbah-ul-Haq and Asad Shafiq in quick succession.
He also claimed tailenders Umar Gul and Junaid Khan to seal victory with four wickets during an unchanged 11-over spell in the morning.
South Africa's bowlers continued to run riot by dismissing Saeed Ajmal for one and Umar Gul, who was caught out by AB de Villiers, who has now equalled the world record for most dismissals in a match by taking his 11th catch.
South Africa won the Test by 211 runs.
Scorecard: SA (253 & 275/3d ; AB de Villiers 103*, Umar Gul 2/58) & Pakistan (49 & 268; ,Misbah-ul-Haq* 64, Steyn 5/52)
South Africa have clinched the first Test of the series over Pakistan following a six-wicket haul in the morning session.
Pakistan were all out for 268 during an extended morning session as South Africa took a 1-0 lead in the three-match series with more than a day and a half to spare.
Having been set an improbable target of 480, Pakistan progressed to 203-4 continuing from their overnight 183-4 before the second new ball was taken. Dale Steyn took full advantage of by dismissing Misbah-ul-Haq and Asad Shafiq in quick succession.
He also claimed tailenders Umar Gul and Junaid Khan to seal victory with four wickets during an unchanged 11-over spell in the morning.
South Africa's bowlers continued to run riot by dismissing Saeed Ajmal for one and Umar Gul, who was caught out by AB de Villiers, who has now equalled the world record for most dismissals in a match by taking his 11th catch.
South Africa won the Test by 211 runs.
Scorecard: SA (253 & 275/3d ; AB de Villiers 103*, Umar Gul 2/58) & Pakistan (49 & 268; ,Misbah-ul-Haq* 64, Steyn 5/52)
