Hot Dip Galvanized - GA Industri AB

Hot Dip Galvanized

Hot and cold rolled materials can be coated with different kinds of surface treatments to increase protection from rust.
Hot dipped galvanizing is the most common and gives good protection. The material is annealed and cooled to approximately 470°, before it is passed through a zinc bath with a temperature of 465°. Thereafter, the material is cooled before it is rolled lightly and acquires the final characteristics. Galvanized is sold from 0.4 – 4.0 mm with different zinc thicknesses and surfaces.

Mild Steel

EN 10346

Yield Strength Re
N/mm2

Ultimate Tensile Strength Rm
N/mm2

Elongation A80 min. %

DX51D+Z

140-

270-500

22

DX52D+Z

140-300

270-420

26

DX53D+Z

140-260

270-380

30

DX54D+Z

140-220

270-350

36

DX56D+Z

120-180

270-350

39

.

Structural Steel

EN10346

Yield Strength Re min. N/mm2

Ultimate Tensile Strength Rm min. N/mm2

Elongation A80 min. %

S220GD+Z

220

300

20

S250GD+Z

250

330

19

S280GD+Z

280

360

18

S320GD+Z

320

390

17

S350GD+Z

350

420

16

S550GD+Z

550

560

.

High-strength Microalloyed Steel

EN 10346

Yield Strength Re
N/mm2

Ultimate Tensile Strength Rm min. N/mm2

Elongation A80 min. %

HX260LAD+Z

260-330

350-430

27

HX300LAD+Z

300-380

400-480

23

HX340LAD+Z

340-420

410-510

21

HX380LAD+Z

380-480

440-560

19

HX420LAD+Z

420-520

470-590

17

HX460LAD+Z

460-540

500-640

16