1.0577/18G2AA/S355J2

NON-ALLOY LOW CARBON STEEL

NORM: PN-EN 10025

APPLICATION:

Steel susceptible to construction steel structures, welding, riveting and bolted structures working at the ambient temperature.

TECHNOLOGICAL INFORMATION:

Fully killed steel; weldable steel

SEMI-FINISHED PRODUCTS:

Fully killed steel; weldable steel

MECHANICAL PROPERTIES:

Effect of the cross-section on mechanical properties

Ultimate tensile strength

Thickness, mm

< 3

> 3–100

> 100–150

> 150–250

Rm, MPa

510–680

470–630

450–600

450–600

Yield stress

Thickness, mm

≤ 16

> 16–40

> 40–63

> 63–80

> 80–100

> 100–150

> 150–200

> 200–250

Re, MPa

≥ 355

≥ 345

≥ 335

≥ 325

≥ 315

≥ 295

≥ 285

≥ 275

Elongation

Thickness, mm

≤ 1

> 1–1.5

> 1.5–2

> 2–2.5

> 2.5–3

A80mm, %, longitudinal samples

≥ 14

≥ 15

≥ 16

≥ 17

≥ 18

A80mm, %, transverse samples

≥ 12

≥ 13

≥ 14

≥ 15

≥ 16

Thickness, mm

3-40

> 40–63

> 63–100

> 100–150

> 150–250

A, %, longitudinal samples

≥ 22

≥ 21

≥ 20

≥ 18

≥17

A, %, transverse samples

≥ 20

≥ 19

≥ 18

≥ 18

≥ 17

Impact test at -20°C

Thickness, mm

> 10–400 27

KV, J

Technological treatment processes:

Technological treatment processes			Possible application	Temperature, °C
Hot forming	Forging		+	(1150 – 800)
	Rolling		+	(1150 – 800)
Treatment	Heat treatment	Quenching	–	–
		Tempering	–	–
	Precipitation strengthening	Supersaturation	–	–
		Ageing	–	–
	Annealing	Normalising	+	(890 – 920)
		Soft annealing	+	< 580
Thermochemical treatment	Carburising		–	–
	Other		–	–

INTERNATIONAL STEEL GRADES: