Our factory accumulated a lot of experience in the production of pumps, can meet the needs of standards in different countries. We have different process for different material, such as green sand process, no bake process, shell molding process, and always help you reduce the cost with most proper process. We have professional machining equipments, paint equipments, and inspection equipment to meet various customers' requirement. For evert casting, we will conduct enough inspection to ensure the quality before delivery, such as CMM,UT,PT,MT,Pressure test.
We are professional comapny supplying ductile iron casting for our customers. We can supplying most of ductile iron castings, following list are the materials which we usually supplying.
Material | Rm/MPa(min) | Rp0.2/MPa(min) | A/% (min) | GPa (min) | HBW | |
QT350-22L | 350 | 220 | 22 | 169 | ≤160 | |
QT350-22R | 350 | 220 | 22 | 169 | ≤160 | |
QT350-22 | 350 | 220 | 22 | 169 | ≤160 | |
QT400-18L | 400 | 240 | 18 | 169 | 120~175 | |
QT400-18R | 400 | 250 | 18 | 169 | 120~175 | |
QT400-18 | 400 | 250 | 18 | 169 | 120~175 | |
QT400-15 | 400 | 250 | 15 | 169 | 120~180 | |
QT450-10 | 450 | 310 | 10 | 169 | 160~210 | |
QT500-10 | 500 | 360 | 10 | 169 | 170~230 | |
QT500-7 | 500 | 320 | 7 | 169 | 170~230 | |
QT550-5 | 550 | 350 | 5 | 172 | 180~250 | |
QT600-3 | 600 | 370 | 3 | 174 | 190~270 | |
QT700-2 | 700 | 420 | 2 | 176 | 225~305 | |
QT800-2 | 800 | 480 | 2 | 176 | 245~335 | |
QT900-2 | 900 | 600 | 2 | 280~360 | ||
Mechanical properties and main matrix structure of ductile iron castings attached samples:
Material | Casting thickness (mm) | Ra/MPa (min) | Rp0.2 /MPa (min) | A% (min) | GPa (min) | HBW | ||
> | ≤ | |||||||
QT350-22A | 30 | 350 | 220 | 22 | 169 | ≤160 | ||
30 | 60 | 330 | 210 | 18 | ||||
60 | 200 | 320 | 200 | 15 | ||||
QT400-15A | 30 | 400 | 250 | 15 | 169 | 135~175 | ||
30 | 60 | 390 | 250 | 14 | ||||
60 | 200 | 370 | 240 | 11 | ||||
QT400-18A | 30 | 400 | 250 | 18 | 169 | 135~175 | ||
30 | 60 | 390 | 250 | 15 | ||||
60 | 200 | 370 | 240 | 12 | ||||
QT450-10A | 30 | 450 | 310 | 10 | 169 | 170~210 | ||
30 | 60 | 420 | 280 | 9 | ||||
60 | 200 | 390 | 260 | 8 | ||||
QT500-7 | 30 | 500 | 320 | 7 | 169 | 180~220 | ||
30 | 60 | 450 | 300 | 7 | ||||
60 | 200 | 420 | 290 | 5 | ||||
QT500-10A | 30 | 500 | 360 | 10 | 169 | 180~220 | ||
30 | 60 | 490 | 360 | |||||
60 | 200 | 470 | 350 | |||||
QT550-5A | 30 | 550 | 350 | 5 | 172 | 190~240 | ||
30 | 60 | 520 | 330 | 4 | ||||
60 | 200 | 500 | 320 | 3 | ||||
QT600-3A | 30 | 600 | 360 | 3 | 174 | 200~250 | ||
30 | 60 | 600 | 360 | 2 | ||||
60 | 200 | 550 | 340 | 1 | ||||
QT700-2A | 30 | 700 | 420 | 2 | 176 | 250~300 | ||
30 | 60 | 700 | 400 | 2 | ||||
60 | 200 | 650 | 380 | 1 | ||||
QT800-2A | 30 | 800 | 480 | 2 | 176 | 260~320 | ||
30 | 60 | |||||||
60 | 200 | |||||||