What is the difference between DX53D+Z and DX51D+Z?

 

DX: The first letter D stands for flat steel for cold forming, and the second letter X stands for the rolled state of the unspecified base material.

51~57: The numbers indicate the steel grade number; the D after the two digits is the code for hot-dip galvanizing. Z means the coating is pure zinc, ZF means galvanized iron alloy, AZ means galvanized.

 

Alloy high-grade steel DX53D (deep-drawn quality) is available in the following hot-dip coatings: DX53D+Z (galvanized), DX53D+ZF (galvanized-iron), DX53D+ZA (galvanized-aluminum), DX53D+AZ (aluminum-coated) Zinc), DX53D+AS (aluminum-silicon).

 

 

Material

DX53D+Z: DX53D+Z zinc plating generally adopts DC03 or DC04 substrate.

DX51D+Z: The galvanizing of DX51D+Z adopts DC01 substrate.

Features

DX53D+Z: It has good appearance and good adaptability in welding, painting, anti-rust treatment, etc.

DX51D+Z: The carbon content is small, the elongation is higher, and the stamping and ductility are general.

Market price

The price of galvanized sheet DX53D+Z is higher than that of galvanized sheet DX51D+Z.

 

 

DX53D chemical element content (%)

C	Si	Mn	P	S	Ti
max 0.12	max 0.5	max 0.6	max 0.1	max 0.045	max 0.3

 

 

Rm - Tensile strength (MPa)	270-380
Re - Upper yield strength or	140-260
Rp0.2 - 0.2% proof strength (MPa)
A - Min. elongation Lo = 80 mm (%)	30

 

DX53D Galvanized Steel Coils

Specification	Metric (mm)	Imperial (inch)
Thickness	0.3 – 3.0 mm	0.012 – 0.118 in
Width	600 – 1500 mm	23.62 – 59.06 in

 

DX53D Galvanized Steel Sheets

Specification	Metric (mm)	Imperial (inch)
Thickness	0.3 – 3.0 mm	0.012 – 0.118 in
Width	600 – 1500 mm	23.62 – 59.06 in
Length	1000 – 6000 mm	39.37 – 236.22 in

 

DX53D Galvanized Steel Strips

Specification	Metric (mm)	Imperial (inch)
Thickness	0.3 – 3.0 mm	0.012 – 0.118 in
Width	20 – 600 mm	0.79 – 23.62 in

 

• Coating Types

DX53D galvanized steel supports various coating types to enhance corrosion resistance:

Z (Galvanized Coating) – Pure zinc coating for excellent corrosion protection.

ZF (Galvannealed Coating) – Zinc-iron alloy coating for improved paint adhesion.

ZA (Zinc-Aluminum Coating) – Aluminum addition enhances durability and heat resistance.

Available coating weights range from Z100 to Z275, depending on the application's environmental exposure requirements.

 

 

GNEE STEEL supplies DX53D galvanized steel coil and sheet with strict quality control, full specification coverage, and reliable global delivery. Our technical team assists customers in optimizing material selection, helping manufacturers achieve higher productivity and lower operational risk.

 

Contact GNEE STEEL today for professional consultation and competitive quotation.

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• Mechanical Properties

 

Grade	Coating	Standard	Yield strength Re (MPa)	Tensile strength Rm (MPa)	Elongation A80 (min %)	r90 (min)	n90 (min)
DX51D	Z, ZA, ZF	EN 10346	-	270 – 500	22	-	-
DX52D	Z, ZA, ZF	EN 10346	140 – 300 ²)	270 – 420	26	-	-
DX53D	Z, ZA, ZF	EN 10346	140 – 260	270 – 380	30	-	-
DX54D	Z, ZA, ZF	EN 10346	120 – 220	260 – 350	36	1.6 ⁴)	0.18
DX56D	Z, ZA, ZF	EN 10346	120 – 180	260 – 350	39	1.9 ⁵)	0.21 ⁵)
DX57D	Z, ZA	EN 10346	120 – 170	260 – 350	41	2.1 ⁵)	0.22