EN 10346 Grade S250GD zinc-aluminium coated (+ZA)
EN 10346 Grade S250GD zinc-aluminium coated (+ZA) introduction
Galfan is a flat carbon steel product coated on both sides with a zinc-aluminium alloy. The coating is composed of 95% zinc and 5% aluminium and is applied by means of a continuous hot dip galvanising process.
Galfan is available in a very wide range of steel grades: steels for cold forming and deep drawing applications, structural steels and High Strength Low Alloy steels.
Because of the nature and the particular structure of its coating, galfan is characterised by very good ductility and excellent forming performance. It is therefore recommended for parts requiring severe deep drawing.
The presence of aluminium in the coating makes the corrosion resistance of galfan significantly higher than that of standard hot dip galvanised steel of equivalent thickness. Galfan offers improved edge corrosion resistance.
Equivalent material: ASTM A875 SS Grade 37, AFNOR C250, JIS SZ AC 340
EN 10346 Grade S250GD zinc-aluminium coated (+ZA) 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 S250GD zinc-aluminium coated (+ZA) electrical
| Property |
- |
- |
| Application areas |
| Coating |
Galfan |
Coating weight - double sided (g/m²) |
Coating thickness (µm per side) |
| ZA95 |
95 |
7.0 |
| ZA130 |
130 |
10.0 |
| ZA185 |
185 |
14.0 |
| ZA200 |
200 |
15.0 |
| ZA255 |
255 |
20 |
| ZA300 |
300 |
23.0 |
EN 10346 Grade S250GD zinc-aluminium coated (+ZA) mechanical
| Property |
Value |
Comment |
| Elongation |
Elongation of 12 % |
min. | for thickness 0.2-0.35 mm | A80 |
| - |
Elongation of 15 % |
min. | for thickness 0.35-5 mm | A80 |
| - |
Elongation of 17 % |
min. | for thickness 0.5-7 mm | A80 |
| - |
Elongation of 19 % |
min. | for thickness 0.7-3 mm | A80 |
| Tensile strength |
Tensile strength of 330 MPa |
min. | for thickness 0.2-3 mm |
| Yield strength |
Yield strength of 250 MPa |
min. | for thickness 0.2-3 mm |
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