Steel Sheet Iron Roofing Gi Corrugated Metal Sheet

Product

Corrugated Roofing Sheet

Base Material

Hot dipped galvanized steel sheet

Hot dipped galvalume steel sheet

Material Grade

CGCC, SGCC, SGCH, G350,G450,G550, DX51D+Z, DX51D+AZ, etc

Thickness

0.12-0.8mm

Width

750-1250mm (before corrugation)
600-1100mm (after corrugation)

Length

1000-6000mm or as require

Tolerance

Thickness: +/-0.02mm
Width: +/-2mm

Length: +/-2mm

Coating Type

Galvanized, Galvalume, Pre painted coating (PE, SMP, HDP, PVDF)

Zinc-coating

60g/m²-275g/m² (G30-G60)

Technique

Raw material: Hot rolled steel coil → Cold rolled → hot dipped galvanized → corrugated

Terms

Raw material width 762mm, after corrugated width 665mm: 9 waves

Raw material width 914mm, after corrugated width 800mm: 11 waves
Raw material width 1000mm, after corrugated 890mm or 900mm: 12-14 waves

Feature

Roofing Steel Sheet have excellent performance of decoration, corrosion resistance etc.

Export Package

Waterproof paper, galvanized steel covered and steel strip packed

Steel Grades

Chemical Composition%

<Residual Element>

Tensile Strength
(MPa)

Yield Strength(MPa)

C%< 

Si%< 

Mn%<

P%< 

S%< 

Alt<

SGCC, DX51D+Z

0.07

0.03

0.5

0.025

0.025

0.02

 Cu<0.10, Ni<0.08, Cr<0.10, As<0.05, Sn<0.05

270-500

140-280

DX52D+Z

0.06

0.03

0.45

0.025

0.025

0.02

270-420

140-300

DX53D+Z

0.03

0.03

0.4

0.020

0.020

0.02

270-380

140-260

S220GD+Z

0.17

0.3

1.0

0.035

0.300

0.02

300-440

>220

S250GD+Z

0.17

0.3

1.0

0.035

0.300

0.02

330-470

>250

S350GD+Z

0.2

0.55

1.6

0.035

0.300

0.02

420-560

>350

Grade

Yield Strength MPa

Tensile Strength MPa not less than

Elongation after breaking b(l=80mm, b=20mm) % not less than Nominal thickness mm

rvalue is not less than

nvalue is not less than

0.70-

1.0-

≥1.6

DC01(St12)

130~260

270

28

30

32

34

-

DC03(St13)

120~240

270

32

34

35

36

-

-

DC04(St14, St15)

120~210

270

36

38

39

40

1.5

0.18

DC05(BSC2)

110~190

260

38

39

40

41

1.8

0.2

DC06(St16,St14-T, BSC3)

100~180

250

39

40

41

42

2

0.22

Grade

Yield Strength MPa no greater than

Tensile Strength MPa not less than

Elongation after breaking b(Lo=50mm, b=25mm) % not less than Nominal thickness mm

0.25-

0.40-

0.60-

1.0~

≥1.6

SPCC

-

270

30

32

34

36

37

38

SPCD

-

270

32

34

36

38

39

40

SPCE, SPCEN

210

270

34

36

38

40

41

42

Grade

Chemical Component %

C

Mn

P

s

Alta

Tib

DC01(St12)

C0.10

≤0.50

≤0.035

≤0.025

≥0.020

-

DC03(St13)

≤0.08

≤0.45

≤0.030

≤0.025

≥0.020

-

DC04(St14,St 15)

≤0.08

≤0.40

≤0.025

≤0.020

≥0.020

-

DC05(BSC2)

≤0.008

≤0.30

≤0.020

≤0.020

≥0.015

≤0.20

DC06(St16,SH4-T,BSC3)

≤0.006

≤0.30

≤0.020

≤0.020

≥0.015

≤0.20

SPCC

≤0.12

≤0.50

≤0035

≤0.025

≥0,020

SPCD

≤0.10

≤0.45

≤0.030

≤0.025

≥0.020

SPCE. SPCEN

≤008

U0.40

W0.025

≤0.020

≥0,020

Alt greater than or equal to 0.015 when C is less than or equal to 0.01 for all grades