PITTSBURGH (AP) _ Two women convicted of murdering a Turkish student and wounding a second while on a double-date were sentenced to life in prison Friday.

Charmaine Pfender, 19, of Pittsburgh, and Sara Mae Richardson, 21, of nearby Imperial, were sentenced for their first-degree murder convictions in the death of Engin Aydin, 24, of Bozagac, Turkey.

Allegheny County Common Pleas Judge George H. Ross also sentenced the women to consecutive prison terms for convictions on other charges so that they would not be eligible for parole within the usual 15 to 20 years, a court official said.

Prosecutors did not seek a death sentence.

Miss Pfender's sister, Gloria, said shortly after the women's arrest last August that the two defendants were lesbian lovers who had harassed men and ''gone violent'' against some of them. The sister's remark was excluded from the trial.

Miss Pfender's attorney, William Brennan, admitted to the jury that his client was ''the shooter.'' But he claimed she acted in self-defense after Aydin made unwelcome sexual advances.

The women were convicted on March 27 of killing Aydin and wounding his friend, Suat Erdogan, 25, of Karabuk, Turkey, in August 1984. Both men were students at Point Park College in Pittsburgh and had arrived in the United States a few months before.

Erdogan, wounded in the neck when he tried to flee from the women, helped authorities find Aydin's body in a shallow grave Aug. 7, 1984 in a rural area near Greater Pittsburgh International Airport.

Miss Richardson claimed she did not take part in the shooting, but only helped Miss Pfender bury Aydin's body in a crude grave and then escape to Virginia Beach, Va.