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Hot dip galvanized steel sheet
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Hot-dip galvanizing is the reaction of molten metal with an iron substrate to produce an alloy layer, thereby combining the substrate and the plating layer. Hot-dip galvanizing is to pickle iron and steel parts first. In order to remove iron oxide on the surface of iron and steel parts, after pickling, it is cleaned in an ammonium chloride or zinc chloride aqueous solution or a mixed solution of ammonium chloride and zinc chloride.And then sent to the hot-dip plating bath. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.

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Hot-dip galvanizing is the reaction of molten metal with an iron substrate to produce an alloy layer, thereby combining the substrate and the plating layer. Hot-dip galvanizing is to pickle iron and steel parts first. In order to remove iron oxide on the surface of iron and steel parts, after pickling, it is cleaned in an ammonium chloride or zinc chloride aqueous solution or a mixed solution of ammonium chloride and  zinc chloride.And then sent to the hot-dip plating bath. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.


Echnical StandardEN10147, EN10142, DIN 17162, JIS G3302, ASTM A653  JIS G3302,ASTM A653M,EN10327,DIN17162,EN 10142,EN10292,
Steel GradeDx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S350GD, S550GD; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490,SGH540, SGCD1, SGCD2, SGCD3, SGC340, SGC340 , SGC490, SGC570; SQ CR22 (230), SQ CR22 (255), SQ CR40 (275), SQ CR50 (340), SQ CR80(550), CQ, FS, DDS, EDDS, SQ CR33 (230), SQ CR37 (255), SQCR40 (275), SQ CR50 (340), SQ CR80 (550); or Customer’s Requirement
TypeCoil/Sheet/Plate/Strip
Thickness0.12-6.00mm,or customer's requirement
Width600mm-1500mm, according to customer's requirement
Type of CoatingHot Dipped Galvanized Steel(HDGI)
Zinc Coating30-275g/m2
Surface TreatmentPassivation(C), Oiling(O), Lacquer sealing(L), Phosphating(P), Untreated(U) galvanized，PVC，black and color painting，transparent oil，anti rust oil
Surface StructureNormal spangle coating(NS), minimized spangle coating(MS), spangle-free(FS)
PackageWater proof paper is inner packing,galvanized steel or coated steel sheet is outer packing , side guard plate,then wrapped by seven steel belt.or according to customer's requirement


Hot dip galvanized steel sheet


  • Stamping steel

Q/BQB 420-2003Q/BQB 420-2001Q/BQB 422-2000
DC51D+Z(St01Z,St02Z,St03Z)St01Z,St02Z,St03ZDC51D+Z
DC51D+ZF-DC51D+ZF
DC52D+Z(St04Z)St04ZDC52D+Z
DC52D+ZF-DC52D+ZF
DC53D+Z(St05Z)St05ZDC53D+Z
DC53D+ZF-DC53D+ZF
DC54D+Z(St06Z)St06ZDC54D+Z
DC54D+ZF-DC54D+ZF
DC56D+Z(St07Z)St07Z　DC56D+Z
DC56D+ZFDC56D+ZF
DD51D+Z(St01ZR,St02ZR)St01ZR,St02ZR-
DD54D+ZF(St06ZR)--


  • Structural steel

Q/BQB 420-2003Q/BQB 420-2001Q/BQB 422-2000
S220GD+Z,S220GD+ZF-S220GD+Z,S220GD+ZF
S250GD+Z,S250GD+ZF-S250GD+Z,S250GD+ZF
S280GD+Z(StE280-2Z)StE280-2ZS280GD+Z
S280GD+ZF-S280GD+ZF
S320GD+Z,S320GD+ZF-S320GD+Z,S320GD+ZF
S350GD+Z(StE345-2Z)StE345-2ZS350GD+Z
S350GD+ZF-S350GD+ZF
S550GD+Z,S550GD+ZF-S550GD+Z,S550GD+ZF

  • High strength steel for cold forming

Q/BQB 420-2003Q/BQB 420-2001Q/BQB 422-2000
H220PD+Z,H220PD+ZF-H220PD+Z,H220PD+ZF
H260PD+Z,H260PD+ZF-H260PD+Z,H260PD+ZF
H300LAD+Z,H300LAD+ZF-H300LAD+Z,H300LAD+ZF
H340LAD+Z(HSA340Z)HSA340ZH340LAD+Z
H340LAD+ZF-H340LAD+ZF
H380LAD+Z-H380LAD+Z
H420LAD+Z(HSA410Z)HSA410ZH420LAD+Z
H180YD+Z,H180YD+ZF-H180YD+Z,H180YD+ZF
H220YD+Z,H220YD+ZF--
H260YD+Z,H260YD+ZF--
H180BD+Z,H180BD+ZF-H180BD+Z,H180BD+ZF
H220BD+Z,H220BD+ZF--
H260BD+Z,H260BD+ZF-H260BD+Z,H260BD+ZF
HR340LAD+Z(HSA340ZR)HSA340ZR-
HR410LAD+Z(HSA410ZR)HSA410ZR-


bse metal typeGradeCHEMICAL COMPOSITION %
CSiMnP
cold rolled steel sheetDC51D+Z (St01Z, St02Z, St03Z) , DC51D+ZF≤0.10-≤0.50≤0.035
DC52D+Z (St04Z), DC52D+ZF≤0.08-≤0.45≤0.030
DC53D+Z (St05Z), DC53D+ZF≤0.08-≤0.40≤0.030
DC54D+Z (St06Z), DC54D+ZF≤0.01≤0.10≤0.30≤0.025
DC56D+Z (St07Z), DC56D+ZF≤0.01≤0.10≤0.30≤0.025
hot rolled steel sheetDD51D+Z (St01ZR, St02ZR)≤0.10-≤0.50≤0.035
DD54D+Z (St06ZR)≤0.01≤0.10≤0.30≤0.025



Hot dip galvanized steel sheet


ProjectCharacteristic
Coating typesPure zinc
Zn-Fe alloy
Surface structureZero zinc flower (coating without lead)
Minimized Spangle
Coating formsPure zinc equal thickness coating 40/40-225/225 g/m2
Pure zinc differential thickness coating 30-150 (per side) g/m2
Zinc iron alloy coating (equal thickness) 30/30-90/90g/m2
Size rangeCold rolled substrate: thickness of 0.3-3.0mm
Width is 800-1830 - mm
Hot rolled substrate: 1.8-2.8mm thick
Width is 900-1500 - mm
GradeSteel for stamping: general use, stamping, deep punching, super deep punching, super deep punching
Structural steel: 220-550 mpa (yield strength)
High strength steel for cold forming: 180-420mpa (yield strength)


Hot dip galvanized steel sheet


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