Prepainted Steel Coil/Sheet

Prepainted Steel Coil Types
Sketch Map of Section Structure of Prepainted Steel Sheet

Prepainted Steel Coil/Sheet Introduction:

  • Dimensions:

    The width range of supplied prepainted steel sheet for ANSON steel is 700-1550mm; The thickness range of the design is 0.2-2.0 mm, which can provide the steel volume of 508 or 610mm inner diameter.

  • Steel Grade:

    ANSON steel supplies steel grades of color coating products have high strength steel color, deep steel color coating, general molding used for color painting, and other advanced high-strength steel paints, such as double - phase steel or polyphase steel, which can improve the anti-wind ability.

  • Substrate Plate Type:

    The base plate of ANSON steel color coated steel plate includes hot galvanizing, electro-galvanizing, aluminized zinc and other basic plates, as well as newly developed zinc-alumina magnesium base plate. The coating weight not only has the double thickness coating, but also has two different thickness coating.

  • Coated Layer Structure:

    The coated products of ANSON steel are 2/2, 2/1, 1/1, 3/2, 2/1M, etc.

  • Coating Types:

    ANSON steel color coating products include polyester (PE), fluorocarbon (PVDF) color coating, silicon modified polyester (SMP) color coating, high tolerance (HDP) and other paint varieties.

  • Surface Treatment:

    Ordinary plane, embossing, printing and special surface effect painted steel plate (anti-scrape, suede, mesh, etc.)

Special Coating function For Prepainted Steel Coil/Sheet:

  • The width range of the supplied steel plate for ANSON steel is 700-1550mm; The thickness range of the design is 0.2-2.0 mm, which can provide the steel volume of 508 or 610mm inner diameter.
  • The antibacterial coating of ANSON steel can inhibit the breeding of escherichia coli, staphylococcus aureus, and green bacillus in hospitals, food factories and so on.
  • ANSON steel self-cleaning series coated steel plate by increasing the crosslinking density and forming hydrophilic coating to achieve self-cleaning effect.
  • The thermal insulation series of ANSON steel is reflected by the special pigments in the coating to reflect the infrared heat in the sunlight, so as to reduce the temperature of the building and save energy.
Prepainted Steel Coil ProductionPrepainted Steel Coil Production


Prepainted Steel Coil/Sheet Application:

Construction Outside workshop, agricultural warehouse, residential precast unit, corrugated roof, wall, rainwater drainage pipe, terrace, retailer booth, roller shutter door
inside door, doorcase, light steel roof structure, folding screen, ceiling, elevator, stairway, vent gutter
Electrial Application refrigerator, washer, switch cabinet, instrument cabinet, air conditioning, micro-wave oven, bread maker
Furniture central heating slice, lampshade, chifforobe, desk, bed, locker, bookshelf
Carrying trade exterior decoration of auto and train, clapboard, container, isolation lairage, isolation board
Other writing panel, garbage can, billboard, timekeeper, typewriter, instrument panel, weight sensor, photographic equipment

Steel Grade and Application Fields of Prepainted steel coil/sheet:

Type of base metal Steel grade Grade of base metal Application
Hot-dip zinc coated TDC51D+Z DC51D+Z Normal use
TDC52D+Z DC52D+Z For drawing
TDC53D+Z DC53D+Z For deep drawing
TS280GD+Z S280GD+Z Structure
TS350GD+Z S350GD+Z Structure
TS550GD+Z S550GD+Z For high-strength structure
Hot-dip alu-zinc alloy coated TDC51D+AZ DC51D+AZ Normal use
TDC52D+AZ DC52D+AZ For drawing
TS250GD+AZ S250GD+AZ Structure
TS300GD+AZ S300GD+AZ Structure
TS350GD+AZ S350GD+AZ Structure
TS550GD+AZ S550GD+AZ For high-strength structure
Electro-galvanized TSECC SECC Normal use
TSECD SECD For drawing
TSECE SECE For deep drawing
TBLCE+Z BLCE+Z Normal use
TBLDE+Z BLDE+Z For drawing
TBLDE+Z BUSDE+Z For deep drawing

Size Range of Prepainted steel coil/sheet:

Items Nominal dimensions
Nominal thickness 0.22~2.0
Nominal width 700~1550
Nominal cut length 1000-4000

Plainness of cold rolled substrate, electro-galvanized substrate steel coil:

Yield Strength

Min Mpa

Nominal width Common precise PF.A High-level precision PF.B
Nominal thickness Nominal thickness
<0.70 0.7-1.20 >1.2 <0.70 0.7-1.20 >1.2
<260 ≤1200 10 8 7 5 4 3
>1200-1500 12 10 8 6 5 4
>1500 17 15 13 8 7 6
260-340 ≤1200 13 10 8 8 6 5
>1200-1500 15 13 11 9 8 6
>1500 20 19 17 12 10 9

Plainness of hot dip galvanized substrate steel coil:

Yield Strength min Nominal width Plainness (mm) for the nominal thickness as shown below
Common precise PF.A High-level precision PF.B
<0.70 0.7-1.60 1.6-3.0 <0.70 0.7-1.60 1.6-3.0
<260 <1200 10 8 8 5 4 3
1200-1500 12 10 10 6 5 4
>1500 17 12 15 8 7 6

For steel sheet and steel strip with a specified minimum yield strength not less than 260MPa but less than 360MPa, and the grades of DC51+Z(ZF), DD51D+Z and S550GD+Z(ZF), the maximum plainness tolerance should be in conformity with the stipulations of Table A2.

Yield Strength min Nominal width Plainness (mm) for the nominal thickness as shown below
Common precise PF.A High-level precision PF.B
<0.70 0.7-1.60 1.6-3.0 <0.70 0.7-1.60 1.6-3.0
260-360 <1200 13 10 10 8 6 5
1200-1500 15 13 13 9 8 6
>1500 20 19 19 12 10 9

Plainness of hot dip Al-Zn substrate steel coil:

For steel sheet with a specified minimum yield strength less than 260MPa, the maximum plainness tolerance should be in conformity with the stipulations of Table A3.

Yield Strength min Nominal width Plainness (mm) for the nominal thickness as shown below
Common precise PF.A High-level precision PF.B
<0.70 0.7-1.60 1.6-3.0 <0.70 0.7-1.60 1.6-3.0
<260 <1200 13 10 10 8 6 5
1200-1500 15 13 13 9 8 6

For steel sheet with a specified minimum yield strength not less than 260MPa, but less than 360MPa, and the grades of DX51D+AZ.S550GD+AZ, the maximum plainness tolerance should be in conformity with the stipulations of Table A4.

Yield Strength min Nominal width Plainness (mm) for the nominal thickness as shown below
Common precise PF.A High-level precision PF.B
<0.70 0.7-1.60 1.6-3.0 <0.70 0.7-1.60 1.6-3.0
260-360 <1200 13 10 10 8 6 5
1200-1500 15 13 13 9 8 6

Suggestion on slection of base metal and zinc coating weight for different application:

No. Applications Base metal Weight of galvanized layer (g/m2)
1 Construction external use Hot-dip zinc coated base metal 90/90
2 Construction internal use Steel Windows Hot-dip zinc coated base metal 90/90
Electro-galvanized base metal 60/60
3 Household appliance、Furniture Electro-galvanized base metal 20/20
4 Construction Hot-dip zinc-aluminum coated board 75/75

Mechanical Properties of cold rolled substrate and electro-galvanized substrate steel coil:

Grade Tensile test
Yield strength
MPa
<

Tensile strength
MPa

>

Elongation (Lo=50mm, b=25mm) % min Nominal thickness mm
Nominal thickness mm
<0.25 0.25-0.30 0.30-0.40 0.40-0.60 0.60-1.0 1.0-1.6- >1.6 1.5-1.0 1.0-1.6
SPCC - 270 25 28 31 34 36 37 38 - -
SPCD 240 270 27 30 33 36 38 39 40 - -
SPCE 220 270 29 32 35 38 40 41 42 - -
SPCF(SPCEN) 210 270 - - 37 40 42 43 44 - -
SPCG 190 270 - - - 42 44 45 46 1.4 1.3

Mechanical Properties of steel sheet and steel strip should be in conformity with the stipulations of Table 16.

Grade Tensile test Rmin N min
Yield strength
MPa max
Tensile strength
MPa min
Elongation (Lo=50mm, b=25mm) % min
Nominal thickness mm
<0.6 0.6-1.0 1.0-1.6 >1.6
BLC 140-270 270 36 38 40 42 - -
BLD 120-240 270 38 40 42 44 1.5 0.18
BUSD 120-210 260 40 42 44 46 1.7 0.20
BUFD 120-190 250 42 44 46 48 2.0 0.21
BSUFD 110-180 250 44 46 48 50 2.2 0.22

Mechanical Properties of hot dip galvanized substrate steel coil:

Grade Tensile test R> N>
Yield strength
MPa
Tensile strength
MPa
Elongation min
DC51D+Z, DC51D+ZF - 270-500 22 - -
DD51D+Z - 270-500 - - -
DC52D+Z, DC52D+ZF 140-300 270-420 26 - -
DC53D+Z, DC53D+ZF 140-260 270-380 30 - -
DC54D+Z 120-220 260-350 36 1.6 0.18
DC54D+ZF 34 1.4 0.18
DD54D+Z <260 <360 36 - -
DC56D+Z 120-180 260-350 39 1.9 0.21
DC56D+ZF 37 1.7 0.20
DC57D+Z 120-170 260-350 41 2.1 0.22
DC57D+ZF 39 1.9 0.21

Grade Tensile test
Yield strength
MPa max
Tensile strength
MPa min
Tensile strength
MPa min
S220GD+Z, S220GD+ZF 220 300 20
S250GD+Z, S250GD+ZF 250 330 19
S280GD+Z, S280GD+ZF 280 360 18
S320GD+Z, S320GD+ZF 320 390 17
S350GD+Z, S350GD+ZF 350 420 16
S550GD+Z 550 550 -

Mechanical properties of hot dip Al-Zn substrate steel coil:

Grade Tensile test
Yield strength
MPa
Tensile strength
MPa
Elongation
DC51D+AZ - 270-500 22
DC52D+AZ 140-300 270-420 26
DC53D+AZ 140-260 270-380 30
DC54D+AZ 120-220 260-350 36

Common performance of front coating of prepainted steel coil/sheet:

Category Thickness(μm) Pencil
hardness
60° specular glossiness of coating 180°bend Impact (J) saltfog
resistant
(h)
Low Moderate High (thickness of steel materials for door and window ≤0.80mm
A level B level
PE ≥20 ≥F <40 40~70 >70 ≤5T ≤3T ≥9 ≥500
SMP ≥20 ≥F <40 40~70 >70 ≤5T ≤3T ≥9
HDP ≥20 ≥HB <40 40~70 - ≤5T ≤3T ≥9 ≥1000
PVDF ≥20 ≥HB <40 40~70 - ≤5T ≤3T ≥9 ≥1000

Performance Comparison for Different Back Coating Structures (Controlling Value)

Coating structure 2/1 2/1M 2/2
Coating layer 1 2 2
Color Yellow-green Steel white Cloud white
Coating thickness 5-7μm 8-10μm 13-18μm
Glossiness - 30-50 40-60
Pencil hardness F-2H ≥F F-2H
Reverse Impact ≥9J ≥9J ≥9J
Flexibility ≤3T ≤3T ≤3T
Application Sandwich sheet Sandwich sheet, Single layer panel Single layer panel
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