The test and analysis on φ26 mm round products rolled from 2. 3 t bearing steel GCH5 electroslag ingot remelting with (/% ) : 45CaF

2

l0CaO

40Al

2

O

3

5MgO slag series are carried out. Results show that after electroslag remelting (ESR) the burning loss of Al and Si and oxygen content increase in top of ingot are larger that that increase in bottom of ingot

the Si

Alt and 0 content in electrode

top and bottom are respectively (/%) 0. 24

0. 16

0. 21 ； 0. 025

0. 011

0. 017 and 0. 001 0

0.003 0

0.002 0. The inclusions in steel are mainly Al

2

0

3

Mg-Al-0 and Ca-Al-0 with minor TiN and compound inclusion with Mg-Al-0 core claddin

g by TiN ； and the per mm

2

inclusions number in top ingot is 16. 49 and that in bottom ingot is 14. 96; the main inclusion in top of ingot is Al

2

O

3

while that in bottom of ingot is Mg-Al- 0 and Ca-Al-0

the main cause is the Al content in bottom of ingot is higher to increase the reduction of MgO and CaO in slag.