No, you show us where does the Bible say that those who are saved are Christians?
All of the following verses are speaking about believers, those who follow Christ and believe in Him, believe that He is the eternal God, believe that He died on the cross and rose again, and believe that because He is God he can forgive our sins and give us salvation though Him alone. Those who believe in their hearts, and confess with their mouth, in the full gospel of Christ for the forgiveness of their sins are called Christians.
1 Corinthians 1
2 To the church of God in Corinth,
to those sanctified in Christ Jesus and called to be his holy people, together with all
those everywhere who call on the name of our Lord Jesus Christ--their Lord and ours:
9 God is faithful,
who has called you into fellowship with his Son, Jesus Christ our Lord.
18 For the message of the cross is foolishness to those who are perishing,
but to us who are being saved it is the power of God.
21 For since in the wisdom of God the world through its wisdom did not know him, God was pleased through the foolishness of what was preached
to save those who believe.
30 It is because of him that
you are in Christ Jesus, who has become for us wisdom from God--that is, our righteousness, holiness and redemption.
Romans 1:16
For I am not ashamed of
the gospel of Christ, for it is the power of God
to salvation for everyone who believes, for the Jew first and also for the Greek.”
Acts 16:30b-31
“Sirs, what must I do to be
saved?” So they said, “
Believe on the Lord Jesus Christ, and you will be saved, you and your household.”
Acts 2:38-39
And Peter said to them, “Repent and be baptized every one of you
in the name of Jesus Christ for the forgiveness of your sins, and you will receive the gift of the Holy Spirit. For the promise is for you and for your children and for all who are far off, everyone whom the Lord our God calls to himself.”
John 1:12
But to
all who did receive him, who believed in his name, he gave the right to become children of God,
John 20:31
But these are written so that
you may believe that Jesus is the Christ, the Son of God, and that by believing you may have life in his name.
John 3:36
Whoever believes in the Son has eternal life; whoever does not obey the Son shall not see life, but the wrath of God remains on him.
Mark 16:16
Whoever believes and is baptized will be saved, but whoever does not believe will be condemned.
2 Corinthians 5:17
Therefore,
if anyone is in Christ, he is a new creation. The old has passed away; behold, the new has come.
Acts 4:12
And there is salvation in no one else, for there is no other name under heaven given among men by which we must be saved.”
Ephesians 2:5
Even when we were dead in our trespasses,
made us alive together with Christ—by grace you have been saved—
2 Timothy 3:15
And how from childhood you have been acquainted with the sacred writings, which are able to make you wise for
salvation through faith in Christ Jesus.