AISI Stainless Steel Hollow Ball Electrical Resistance Weld ISO Certification

The hollow stainless steel ball we can produce is widely used in craftwork, valve, architecture.We mainly produce 201 and 304 hollow stainless steel ball,you can order nonstandard ones.

Heading:
In the first step, heading machines cut wire into short lengths and form it into spherical shapes between dies.
Deflashing:
The flash line, a ridge left by the forming dies, is removed as balls roll between heavy,cast iron plates.
Soft Grinding:
Similar to deflashing, except that a grinding stone is used to improve precision.
Heat-treating:
Steel balls are next carburized and hardened. Heat treatment imparts the desired hardness and case depth.
Descaling:
This step removes the residues and by-products from the heat-treating process.
Hard Grinding:
Slow, meticulous grinding assures proper sizing and sphericity, with tolerances as closeas ±.0001.
Lapping:
Several proprietary lapping processes can bring balls to the requirements of ISO 3290 Grade10 - 48.
Finishing:
Proprietary chemical and mechanical processes give the balls their final micro-smoothed finish, for increased wear resistance and product longevity.

FAQ:

Q: How do you control the quality?

We have professional inspectors to analyze chemical composition of raw materials and test the finished products strictly according to standard stipulated in the contract. In this process, Internal and external surfaces, two ends appearance, bending degree, fixed length, outer diameter and wall thickness dimension etc will be checked one by one. You can be assured that all the products you get from us are reliable.

Q: Can you accept customization?

Yes. If you have the special requirements on products or packages, we can do customization for you.

Q: Can you accept trail orders?

Gemerally our MOQ is 1 ton. But if you want to place a trail order as the beginning of our cooperation, we can accept smaller quantity at frist. Surely we will have further and longer partnership after the beginning.

Q: Can you provide samples for checking before order?

A: Free samples can be provided as you required. You need only to bear the freight cost.