Eternal Bliss Alloy Casting & Forging Co.,LTD.
EB Castings&Forgings, Your Total Solution！
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Spun cast sleeves typically have much finer ASTM type D flakes throughout the bulk of the tube wall, with a small amount of type C or A flakes on the inside surface of the pipe.Pit cast iron parts typically has large ASTM type C flakes (ASTM, 1998)Type D graphite flakes in the spun cast grey iron tubes produce less initial plastic deformation than the larger type C flakes in the pit cast iron tube.
Our Gray Iron compressor parts 120 to 350 mm in diameter and 300 to 500 mm long are spun-cast on spindle machines. These centrifugal cast machines can be operated at anywhere from 540 to 1260 rpm.
Outstanding Features:
1.We use Spetrometer to control the chemlcal elements；
2.We check the matrix with our mlcroscope;
3.We can do fully machining on the sleeve parts.
4.We adopt Centrifugal Cast process with higher efficiency to shortening the process time;
5.Production Process: centrifugal cast process + machining process
7.We can make the cast sleeves as per customer design.
8.Diameter: 50mm - 500mm; Length: less than 400mm.
9.Material Grades:
| Grade | Wall Thickness /mm | C | Si | Mn | P ≤ | S ≤ |
| HT100 | – | 3.4~3.9 | 2.1~2.6 | 0.5~0.8 | 0.3 | 0.15 |
| HT150 | <30 30~50 >50 | 3.3~3.5 3.2~3.5 3.2~3.5 | 2.0~2.4 1.9~2.3 1.8~2.2 | 0.5~0.8 0.5~0.8 0.6~0.9 | 0.2 0.2 0.2 | 0.12 0.12 0.12 |
| HT200 | <30 30~50 >50 | 3.2~3.5 3.1~3.4 3.0~3.3 | 1.6~2.0 1.5~1.8 1.4~1.6 | 1.7~0.9 0.8~1.0 0.8~1.0 | 0.15 0.15 0.15 | 0.12 0.12 0.12 |
| HT250 | <30 30~50 >50 | 3.0~3.3 2.9~3.2 2.8~3.1 | 1.4~1.7 1.3~1.6 1.2~1.5 | 0.8~1.0 0.9~1.1 1.0~1.2 | 0.15 0.15 0.15 | 0.12 0.12 0.12 |
| HT300 | <30 30~50 >50 | 2.9~3.2 2.9~3.2 2.8~3.1 | 1.4~1.7 1.2~1.5 1.1~1.4 | 0.8~1.0 0.9~1.1 1.0~1.2 | 0.15 0.15 0.15 | 0.10 0.10 0.10 |
Grey Iron Castings Hardness
| Gray Iron Grade | Hardness Grade | Hardness Range HB | Metallography |
| HT100 | H145 | ≤170 | Ferrite |
| HT150 | H175 | 150~200 | Ferrite + Pearlite |
| HT200 | H195 | 170~220 | Pearlite |
| HT250 | H215 | 190~240 | Pearlite |
| HT300 | H235 | 210~260 | Pearlite(Inoculated Cast Iron) |
| HT350 | H255 | 230~280 | Pearlite(Inoculated Cast Iron) |
Step 1: Getting orders.
Step 2: Process design by technical department
Step 3: Purchase of raw materials and pattern making &checking
Step 4: Inspection of raw materials
Step 5: Melting by middle-frequency induction furnaces
Step 6: Ladle analysis by Spectrometer
Step 7: De-oxidization, slag-removal, tapping
Step 8: Pouring
Step 9: Openning & fettling
Step 10: Surface & dimensional check
Step 11: Heat treatment
Step 12: Inspection of physical property (UT test,MT test, hardness,impact value, matrix structure)
Step 13: Packing
Step 14: Shipping
1. 18-year Foundry Operation Experience.
2. Friendly & High Efficient Technical & Commercial Communication.
3. Professional Export Practices: Have Exported to +60 Overseas Countries.
Our Trade Show
Our booth No. 14-A29-5 in Newcast 2015,Germany
Hall 14, Stand No.A29-5.
Contact Us for further information about products & service:
Mr.John Liu
Project Manager
Tel: 0086-188 0059 6372
Fax: 0086-510-6879 2172
E-mail:cast@ebcastings.com； ebcastings@163.com
Skype ID:julia.zhu26
QQ: 217 039 6403
What's app: 0086-130 930 23772
Eternal Bliss Alloy Casting & Forging Co.,LTD.
Add.: J-Sci-Tech Park, Binhu District,Wuxi,214122, Jiangsu,China
Our Inspection Video: