Si

Ca

Al

Ba

Other

JDY-1

Bismuth-Silicon Alloy

68-78

1.2-2

0.7-1.5

0.1-0.6

RE0.1-0.5

Bi0.3-1

Suitable for thin-walled ductile iron castings. Significantly increases the number of graphite balls, refines the graphite balls, and improves the roundness.

JDY-2

Rare Earth-Calcium-Barium

65-70

2-4

<1.5

2-4

RE3-5

It is mainly used for thin-walled, high-strength gray cast iron parts, effectively reducing the tendency of white mouth formation and improving the mechanical properties of the castings.

JDY-3

Silicon-Barium-Calcium Alloy

68-72

0.5-2

<1.5

2-4

-

It has strong nuclear generation capacity and anti-degradation ability, and is mostly used for gray cast iron and ductile iron parts with large wall thickness.

JDY-4

Silicon-Barium Alloy

68-72

<0.5

<1.5

1-2

-

It effectively inhibits the formation of rust spots on castings and is suitable for the in-flow inoculation of various gray cast iron and ductile iron parts.

JDY-5

Silicon-Manganese-Zirconium Alloy

65-72

/

<1.5

/

Mn3-5

Zr2-4

It has a strong nuclear generation capacity, improves the fluidity of molten iron, and is suitable for various grades of gray cast iron and ductile iron parts.

JDY-6

Rare Earth-Silicon Alloy

72-76

0.75-1.25

0.75-1.25

<0.5

Ce1.5-2.0

It is applicable to the in-flow inoculation of ductile iron and low-sulfur gray cast iron, effectively alleviating the apparent micro-shrinkage porosity of castings.

JDY-7

Silicon-Strontium Alloy

70-75

<0.1

<0.5

/

Sr0.8-1.8

It is mostly used for thin-walled gray cast iron parts, significantly reducing the tendency of white cast iron and the risk of shrinkage porosity, and improving the density of the castings.

JDY-8

Silicon-Antimony Alloy

68-72

Appropriate amount

Appropriate amount

/

Sb3-9

It strongly promotes pearlite and graphitization, and is mostly used in high-strength gray cast iron and large-section ductile iron parts.

JDY-9

Silicon-Barium-Zirconium Alloy

68-72

Appropriate amount

<1.0

2-4

Zr1.2-2

It effectively inhibits the formation of nitrogen-hydrogen mixed pores and is suitable for various grades of gray cast iron parts under wet molding sand conditions.