Where the
world gathers for metal finishing
Q&As since 1989


-----

Removing the impurities from a stainless sheet

We fabricate SS 316 grade steel around 5-12 mm thick. The top most layer of the steel is impure or very rough. I need a solvent to remove the top most layer the steel please help in this matter.

Thanking you.

Shaik Taher
supervisor & quality controler - Hyderabad, Andhra Pradesh, India
2004

---

First of two simultaneous responses -- 2004

Dear friend:

As I understand your problem you need to clean your stainless steel 316.look you must use a suitable degreaser to remove oil from the surface, then rinse after you can use the following formulation :

PHOSPHORIC ACID 36%
sulfurIC ACID 15%
WATER THE REST
TEMP 45 C
C.D 50 AMP/Ft2

YOU well get a clean bright surface.

ATIF .A BAR
- CAIRO, EGYPT

---

Second of two simultaneous responses --

You didn't say anything about how wide your sheets are, but the fastest way to remove scale is via an in-line blast method; however, it maybe possible to use a wide belt abrasive method.

AF Kenton
retired business owner - Hatboro, Pennsylvania
2004

You can use a chemical/degreaser for coming out of your problem which is available in Delhi.

V S Magesh
- Chennai, India
2004