100% Original Vacuum Sand Moulding - OEM Custom Grey Iron Casting – Mingda
100% Original Vacuum Sand Moulding - OEM Custom Grey Iron Casting – Mingda Detail:
Basic Info
Die Casting Machine Type: Cold Chamber Die Casting Machine
Die Casting Method: Soluble Die Casting
Application: Machinery Parts
Machining: CNC Machining
Tolerance Grade: 8
Casting Surface Quality Level: 3
Certification: SGS, ISO 9001:2008
Size: As Per Drawing
Additional Info
Packaging: standard export package
Productivity: 100 Ton/Month
Brand: Mingda
Transportation: Ocean,Land,Air
Place of Origin: China
Certificate: ISO9001
Port: Tianjin
Product Description
Grey iron, or grey cast iron, is a material type of cast iron with graphitic microstructure. We call this kind of material grey iron because of the gray color of the fracture. For the graphite lubricating the cut and breaking up the chips, grey iron is a common cast alloy due to its relatively low cost and good machinability. Besides, because the graphite flakes self lubricate, it also has good galling and wear resistance.
Grey iron also has less solidification shrinkage than other cast irons because of the graphite microstructure. Whe casting, the silicon element can promote good corrosion resistance and increase fluidity when casting. Gray iron is generally considered easy to weld. Compared to other iron castings, gray iron has a low tensile strength and ductility; that is why the impact and shock resistance of this kind of material is almost non-existent.
Frequently Used Grey Iron Grades
Gray Iron | Wall thickness/mm | C | Si | Mn | P≤ | S≤ |
HT150 | <30 | 3.3-3.5 | 2.0-2.4 | 0.5-0.8 | 0.2 | 0.12 |
30-50 | 3.2-3.5 | 1.9-2.3 | 0.5-0.8 | 0.2 | 0.12 | |
>50 | 3.2-3.5 | 1.8-2.2 | 0.6-0.9 | 0.2 | 0.12 | |
HT200 | <30 | 3.2-3.5 | 1.6-2.0 | 0.7-0.9 | 0.15 | 0.12 |
30-50 | 3.1-3.4 | 1.5-1.8 | 0.8-1.0 | 0.15 | 0.12 | |
>50 | 3.0-3.3 | 1.4-1.6 | 0.8-1.0 | 0.15 | 0.12 | |
HT250 | <30 | 3.0-3.3 | 1.4-1.7 | 0.8-1.0 | 0.15 | 0.12 |
30-50 | 2.9-3.2 | 1.3-1.6 | 0.9-1.1 | 0.15 | 0.12 | |
>50 | 2.8-3.1 | 1.2-1.5 | 1.0-1.2 | 0.15 | 0.12 |
In our foundry, we can make grey iron castings in below two types:
Lost Foam Casting: The only investment casting process for cast iron components, which has lots of advantages to produce small gray iron invesmtent castings, such as saved mould cost, shorten production cycle and improve production efficiency. With lost foam casting process, we can help our customers to obtain high accuracy products with excellent surface finish, and less machining operations will be done.
Resin Sand Casting: Main sand casting process for small and medium castings. Compare with other sand casting processes, resin sand casting is relatively precise casting method close to investment casting. As good rigidity of resin sand and high strength of sand mould when early casting,then we could effectively eliminate the shrinkage cavity, shrinkage defects of gray iron castings.
Casting equipment
Product detail pictures:
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By Priscilla from Seychelles - 2018.12.11 11:26
The manufacturer gave us a big discount under the premise of ensuring the quality of products, thank you very much, we will select this company again.
By Betty from Southampton - 2018.06.26 19:27