Steel casting is one of the core casting process in our investment casting foundry.

Compare with iron casting, components casted by steel casting technics are with high strength and impact resistant. So, nowdays, a lot of machinery parts are choosen to be casted from steel materials.

Strength of steel castings are higher than iron castings. But the casting property is less than iron. So, to avoid the casting defects such as short run, chills, shrinkages, pores, cracks, sticks, etc., the below casting characteristics should be paid high attation to during designing and casting process.

1.Gating system design. Casting surfaces with high quality or machining requirements, surfaces with large scales, surfaces with thin wall should be underneath. Sizes and places of the pouring gates should be reasonable. Thus, to ensure the exhausting, shakeouting, and clearing processes. The inside gating system should not be placed at areas, which is not the important areas, but shorted distance to each areas, thus to ensure the speed of the steel waters to arrive at each corners of the shells. During knockouting process, the pouring gate will be cutted from the castings.

2.To avoid chills & short runs caused by bad fluidity of steel waters, the min. thickness should be no less than 8mm. And the casting temperture should be controled well, normally used range is 1520°～1600℃.

3.Shrinkages of steel castings is bigger than iron castings. Thus, to avoid shrinkages or pores defects, pouring gate or chilling blocks are used during steel casting production process.

4.To keep the wall thickness uniformity of the steel castings, avoid sharp edges and vertical angle structure.

5.Coating the wax/sand shells with special sand/liquid materials to protect the finished steel castings from sticked big sand grains.

Weight of steel castings for machinery we can cast in our investment casting factory is from 1 t to 25 t, with casting tolerance to control between CT7 to CT8. According to custom machining requirements,we can machine the products with more accurate tollerances and certain surface finish, such as Ra 6.3, 3.2, 0.8, etc.

Currently, our steel castings are exported to North American, Europe, Australia, South Africa markets.

If you have inquiries for steel castings, please contact us at your earliest convenience!