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S550GD Galvanized Steel Coil

Z275 Zinc Coating Hot Dipped Galvanized Steel Coil

0.12-6.00mm Thickness GI Steel Coil

Basic Infomation

Place of Origin: Henan

Brand Name: Gnee

Certification: SGS

Payment & Shipping Terms

Packaging Details: Standard Sea Worthy Package

Supply Ability: 10000 Ton/Tons per Month

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Premium S550GD Hot Dipped Galvanized Steel Coil with Z275 Zinc Coating and 0.12-6.00mm Thickness for Global Distribution

Product Description

Premium S550GD Galvanized Steel Coil

Our hot-dip galvanized steel coils are manufactured using continuous hot-dip galvanizing processes applied to either hot-rolled or cold-rolled steel substrates. These premium galvanized coils offer superior corrosion protection and are engineered for diverse applications across construction, automotive manufacturing, home appliances, container production, transportation equipment, and commercial industries.

Product Specifications

Product Type	Galvanized Steel Coil/Roll
Technical Standards	EN10147, EN10142, DIN 17162, JIS G3302, ASTM A653
Steel Grades	Dx51D, Dx52D, Dx53D, DX54D, S220GD-S550GD; SGCC series; SQ CR series; or custom requirements
Available Forms	Coil, Sheet, Plate, Strip
Thickness Range	0.12-6.00mm (custom specifications available)
Width Range	600mm-1500mm (custom widths available)
Coating Type	Hot Dipped Galvanized Steel (HDGI)
Zinc Coating Weight	30-275g/m²
Surface Treatments	Passivation (C), Oiling (O), Lacquer sealing (L), Phosphating (P), Untreated (U)
Surface Structure	Normal spangle (NS), Minimized spangle (MS), Spangle-free (FS)
Quality Certification	SGS, ISO Approved
Inner Diameter	508mm / 610mm
Coil Weight	3-20 metric tons per coil
Packaging	Export wooden pallets with craft paper and anti-blushing agent protection
Delivery Time	Future goods: 15-20 work days; Ready stock: 7-10 days

Material Quality Assurance

Completely free from white rust, roll marks, and edge damage
No camber, dents, holes, or break lines
Free from scratches and coil set defects

Zinc Coating Specifications

Zinc Coating Grade	Zinc Coating (g/m²)	Corrosion Resistance	Typical Applications	Remarks
Z30	30	Very low	Indoor parts, home appliance inner panels, ventilation ducts	Not suitable for outdoor use
Z60	60	Low	Indoor structures, temporary facilities	Low cost solution
Z80	80	Medium	Light steel structures, base metal for PPGI	Good cost performance
Z100	100	Medium	PPGI, fencing, general construction	Common export grade
Z120	120	Medium-High	Roofing sheets, wall panels	Longer service life
Z140	140	Medium-High	Industrial buildings, agricultural facilities	Suitable for outdoor use
Z180	180	High	Long-term outdoor structures, equipment housings	Recommended for outdoor use
Z200	200	Very high	Humid environments, heavy structures	Higher cost option
Z275	275	Excellent	Coastal areas, solar mounting systems, high-corrosion environments	Highest standard protection

Surface Treatment Options

Surface Treatment Type	Code	Features
Chromic Acid Treatment	C	Good corrosion resistance, suitable for bare state applications
Chromic Acid Treatment + Oiling	S	Enhanced corrosion resistance with oil protection
Phosphoric Acid Treatment (Including Sealing)	P	Good corrosion resistance with excellent paint adhesion
Phosphoric Acid Treatment (Including Sealing) + Oiling	Q	Corrosion resistance with paint adhesion and transport protection
Phosphoric Acid Treatment (Excluding Sealing)	T	Corrosion resistance with good paint performance
Phosphoric Acid Treatment (Excluding Sealing) + Oiling	V	Paint performance with corrosion resistance and rust prevention
Oiling	O	Prevents rust during transportation and storage
No Treatment	M	Suitable for immediate painting applications

All specifications can be customized according to customer requirements. Contact our technical team for tailored solutions.

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Contact Person :	Ms. Kelly Zhang
Tel :	+8615824687445
Fax :	86-372-5055135

Premium S550GD Hot Dipped Galvanized Steel Coil with Z275 Zinc Coating and 0.12-6.00mm Thickness for Global Distribution

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