Bainitic Nodular Cast Iron Rolls

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Equipped with one of the best bainitic nodular cast iron rolls brands, Kaida Roll Group is one of competitive SGA Mill rolls manufacturers and suppliers in China, welcome to visit our website.

Bainitic Nodular Cast Iron Rolls (SGA)

Alloy elements of Ni?Mn?Cr?Mo etc., are added to bainitic nodular cast iron rolls for obtaining acicular (bainite-martensite) matrix in its microstructure of these rolls. Its strength and toughnes are higher than Perlitic Nodular Cast Iron Rolls, wearability is also better than latter. These rolls can be produced by static casting and centrifugal casting.

To ensure the best performance of SGA rolls, we might suggest CCSGA for better strength and hardness.We will also help you do the roll pass design. Our goal is to minimize roll failures and breakages.We can offer you different barrel radius from 300mm-1500mm. 

Table.1 Chemical Composition %

Symbol

C

Si

Mn

Cr

Ni

Mo

SGA?

2.90-3.60

1.20-2.20

0.20-0.80

0.20-1.00

3.01-3.50

0.50-1.00

SGA?

2.90-3.60

1.00-2.00

0.20-0.80

0.30-1.50

3.51-4.50

0.50-1.00

Table.2 Prosperities&Application

Symbol

Hardness
HS

Tensile Strength
MPa

Bending Strength
MPa

Dimension
MM

Unit N.W
KGS

Application

SGA?

55-78

=350

600-800

?300-1000

500-12000

Finishing stands of small section mills, bar,rod and hot narrow strip mills,finishing stands of high speed wire mills

SGA?

60-80

=350

600-800

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