430 Stainless Steel Classification and Process

Surface grade:

430 stainless steel has the following conditions, the status is different, and the dirt resistance and corrosion resistance are also different.

NO.1, 1D, 2D, 2B, N0.4, HL, BA, Mirror, and various other surface treatment states.

Feature processing:

1D—The surface has discontinuous granules, also known as matte surfaces. Processing technology: hot rolling + annealing shot pickling + cold rolling + annealing pickling.

2D - a slightly shiny silvery white. Processing technology: hot rolling + annealing shot pickling + cold rolling + annealing pickling.

2B—Silver white and better gloss and flatness than 2D surfaces. Processing technology: hot rolling + annealing shot pickling + cold rolling + annealing pickling + quenching and rolling.

BA—The surface gloss is excellent and has a high reflectivity, like the mirror surface. Processing technology: hot rolling + annealing shot pickling + cold rolling + annealing pickling + surface polishing + temper rolling.

No.3—There is a good gloss and the surface is rough. Processing: Polishing and temper rolling for 2D or 2B with 100~120 abrasive (JIS R6002).

No.4—There is a good gloss and a fine grain on the surface. Processing: Polishing and temper rolling for 2D or 2B with 150~180 abrasive (JIS R6002).

HL - silvery gray with hairline stripes. Processing: Polishing the 2D or 2B with an appropriate size of abrasive material to continuously polish the surface.

MIRRO—mirror state. Processing: Grinding and polishing the 2D or 2B with the appropriate size of the abrasive material to the mirror effect.