|
◆ SUMMARY
They are made of high quality steel melted with electric arc furnace (EAF) and finished with advanced foundry and heat treatment technologies. Roll barrel is mainly composed of pearlite (or temper sorbite) in the microstructure. |
◆ ADVANTAGE
◇ High tensile strength
◇ High wearability
◇ Good toughness
◇ Excellent resistance to fire crack
◆ MECHANICAL PROPERTIES & APPLICATION
|
Symbol |
Hardness (HS) |
Tensile Strength (MPa) |
Elongation (%) |
Application |
|
AS60A |
45-55 |
>700 |
>8 |
Bloomer and slab mills, rougher of large section mills |
|
AS70A |
34-44 |
>680 |
>7 |
Rougher of section, bar and rod mills Rougher of narrow strip mills Vertical scale-breaking rolls. |
|
AS70B |
36-46 |
>680 |
>7 |
|
|
AS75 |
36-46 |
>680 |
>6 |
|
|
AS75A |
35-55 |
>800 |
>7 |
|
|
AS75B |
40-60 |
>800 |
>7 |
Bloomer and slab mills Back-up rolls of narrow strip mills. |
ALLOY CAST STEEL ROLL
