EN 10346 Grade S320GD hit dip zinc coated (+Z)

EN 10346 Grade S320GD hit dip zinc coated (+Z) introduction

ArcelorMittal's hot dip galvanised steel consists of a steel substrate with a metallic zinc coating applied by means of a continuous hot dip galvanising process. Metallic zinc coatings are available in steel grades ranging from steel for bending and deep drawing applications, to structural steels and high yield strength steels.

A glossy surface finish obtained under specific skin-pass conditions (either non-skin-passed or skin-passed with smooth cylinders to obtain low roughness) can be provided if required at time of enquiry.

This Hot dip galvanised product offer excellent corrosion resistance combined with very good forming properties. The coating process can apply very thick zinc layers, up to 725 g/m² (total of both sides).

Equivalent material: ASTM A653 SS Grade 275, EN FeE320 G, DIN StE 320-2Z, AFNOR C320

EN 10346 Grade S320GD hit dip zinc coated (+Z) chemical

Property Value Comment
Carbon Carbon of 0.2 % max.
Manganese Manganese of 1.7 % max.
Phosphorus Phosphorus of 0.1 % max.
Silicon Silicon of 0.6 % max.
Sulfur Sulfur of 0.045 % max.

EN 10346 Grade S320GD hit dip zinc coated (+Z) electrical

Property - -
Application areas
Chemical composition
Coating Designation EN 10346 Coating weight - double sided (g/m²) Coating thickness (µm per side)
Z100 100 7.0
Z140 140 10.0
Z200 200 14.0
Z225 225 16.0
Z275 275 20.0
Z350 350 25.0
Z450 450 31.0
Z600 600 42.0
Not included in the standard
Z80 80 5.5
Z725 725 51.0

EN 10346 Grade S320GD hit dip zinc coated (+Z) mechanical

Property Value Comment
Elongation Elongation of 10 % min. | for thickness 0.25-0.35 mm | A80
- Elongation of 13 % min. | for thickness 0.35-0.5 mm | A80
- Elongation of 15 % min. | for thickness 0.5-0.7 mm | A80
- Elongation of 17 % min. | for thickness 0.7-6 mm | A80
Tensile strength Tensile strength of 390 MPa min. | for thickness 0.25-6 mm
Yield strength Yield strength of 320 MPa min. | for thickness 0.25-6 mm

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