Grey Iron Casting Products

Grey Iron Casting Products

Engine component Grey Iron Casting Company Supply Different Quantity And Shape Product Description and Process Engine component Grey Iron Casting Company Supply Different Quantity And Shape Production process: Green sand casting process pre-coated sand casting process resin sand casting process...

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Engine component Grey Iron Casting Company Supply Different Quantity And Shape

Product Description and Process

Engine component Grey Iron Casting Company Supply Different Quantity And Shape


Production process:

Green sand casting process

pre-coated sand casting process

resin sand casting process

Weight range: from 50 gram to 5,000 kilograms for ductile iron casting product


Machining process:

CNC machine, machining center, lathe, mill machine, drill machine, etc.


Surface treatment process:

paint coating, electrophoretic paint coating, electrogalvanizing coating, black oxide coating, phosphate treatment,  powder coating, etc.


Product Material and Uses

Normally production with gray iron HT200, HT250, ductile iron 65-45-12, 60-40-18, 80-55-06, 80-60-03, 100-70-03, etc.

The grey iron casting products are widely used for Auto-cars, trains, trucks, vehicle components, mining machinery components, agricultural machinery parts, textile machinery parts, construction machinery parts, etc.


Grey Iron Specifications, Characteristics & Applications

• ASTM A48: gray iron castings

• ASTM A74: cast iron soil & pipe fittings

• ASTM A126: gray iron castings for valves, flanges & pipe fittings

• ASTM A159: automotive gray iron castings

• SAE J431: automotive gray iron castings

• ASTM A278 & ASME SA278: gray iron castings for pressure-containing parts for temperatures up to 650F (343C)

• ASTM A319: gray iron castings for elevated temperatures for Non-pressure-containing parts

• ASTM A823: statically cast permanent mold castings

• ASTM A834: common requirements for iron castings for general industrial use


What are the Material Properties vs. Casting Processes?

Material properties come from the makeup of the materials present. Some of the materials are added to the iron for strength while others are added to improve castability (affecting melting temperatures, etc.). 

The properties of all metals are also influenced by the way they solidify during cooling. If you change the cooling process, you automatically change the structure of the metal in its final state. How the cast part cools can be affected by how the metal is introduced into the mold, the pouring temperature, and the process and speed of cooling. One of the difficulties in making a quality casting is to account for the way a part will cool in different parts of the mold, accounting for both thick and thin areas of the mold.


What is the Composition of Gray Cast Iron?

Just like all cast iron parts, the primary component of Grey Iron is going to be the iron (no surprise there, right?).  Just like most other cast irons, it also has 2.5–4.0% carbon and 1–3% silicon.  If you look at Chart 2 you will notice that the composition of the iron is very close to other common cast parts, but with a little more phosphorus.

Iron Family

Gray

Ductile

CGI

Malleable

White

Carbon

2.5-4.2

3.0-4.0

2.5-4.0

2.2-2.8

1.8-3.6

Silicon

1.0-3.0

1.8-3.0

1.5-3.0

1.2-1.9

0.5-2.0

Manganese

0.15-1.0

0.1-1.0

0.10-1.0

0.15-1.2

0.15-0.8

Sulfur

0.02-0.25

0.01-0.03

0.01-0.03

0.02-0.2

0.02-0.2

Phosphorus

0.02-1.0

0.01-0.1

0.01-0.1

0.02-0.2

0.02-0.2


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