Surface Finish

Characteristic & Usage

No.1

Plate is hot rolled, annealed, pickled and passivated, quite suitable for industrial applications.

2D

A no. 1 finish after being cold rolled, annealed, pickled and passivated, this results in a uniform dull matt finish, superior to a No. 1 finish.

2B

A 2D finish is given a subsequent light skin pass cold rolling operation between polished rolls, it is brighter than 2D and is semi-reflective.

BA

This is more commonly referred to as a BRIGHT ANNEALED (BA) FINISH. The final surface developed can have "MIRROR" type finish similar in appearance to the highly polished No. 7 and No. 8 finishes.

No.3

This is a ground unidirectional uniform finish obtained with 100 ~ 120 grit abrasive.

No.4

This is a ground unidirectional finish obtained with 150 ~ 320 grit abrasive, is a good general purpose finish on components which will suffer from fairly rough handling in service (eg restaurant equipment).

No.6

These finishes are produced using rotating cloth mops which are loaded with abrasive paste, the finish has a non-directional texture of varying reflectiveness.

No.7

It is produced by progressively using finer and finer abrasives and finishing with buffing compounds, this is a buffed finish having a high degree of reflectiveness.

No.8

The final operations being done with extremely fine buffing compounds, is blemish free with a high degree of image clarity, and is the true mirror finish.