L

 Chromic acid passivation

Y

 Basting

LY

 Chromic acid passivation and basting

GZ

 Finishing of finishing machine

Surface structure

Characteristics

Application

Normal spangle (Z)

Under the common conditions, the galvanized zinc makes spangle after condensation.

Common usage

Finishing spangle (G)

Finish the galvanized sheet by finishing machine, and level off the spangles on the galvanized sheet.

Used as base lamina of color coated sheet.

Processing property

Yield stress

Tensile strength

Tensile stretch %

180^o cold bending

Processing property

Yield stress

Tensile strength

Tensile stretch %

180^o cold bending

Common PV

—

270-500

—

d=0, in good condition, non-dezincing.  

Deep pressing SC

—

270-380

≥30

d=0, in good condition, non-dezincing.

Mechanical articulation JY

—

270-500

—

d=0, in good condition, non-dezincing.

Ultra-deep pressing SC

—

270-380

≥30

d=0, in good condition, non-dezincing.

Structure JG

≥240

≥370

≥18

d=0, in good condition, non-dezincing.

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—

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