S355J2

General Information

S355J2 is a micro alloyed structural steel suitable for e.g. mechanical engineering applications. The steel posess a good weldability with max CEV =0.47 for all variants. The steel may be delivered with a controlled silicon content for good galvanazing properties. Below, a number of closely related variants with various impact strength are presented.

Variant SB9813 is delivered with a closely controlled C-content for predictable properties and with a CEV value of max 0.41.

Variant S355J2(M) is a M-treated variant

Variant S355K2 and S355L4 both show good Impact toughness

Variant 520M is a M-steel variant of S355J2

Variant 550M is a drawn or peeled version of S355J2

M-Steel®

The basis for the concept is that non-metallic inclusions are modified and controlled with calcium treatment in a way to minimize tool wear and to maximize chip control in machining operations. Our M-Steel treatment can be applied to any steel grade.

Similar designations

ASt 52, A52 FP, Q420q-D, 1501 Gr.224-460, A52 RBII, 1.0577, St52-3, SB9837 Grade32-36, SB9833

Variant	Cast	Di	Weldability		C %	Si %	Mn %	P %	S %	Cr %	Ni %	Mo %	V %	Cu %	Al %
SB9813	CC		CEV 0.41_max	Min	0.13	0.15	1.00	-	-	-	-	-	0.030	-	0.025
Pcm 0.25_max	Max	0.18	0.25	1.30	0.025	0.025	0.15	0.25	0.07	0.120	0.30	-
S355J2(M)	CC		CEV 0.5_max	Min	-	-	-	-	0.020	-	-	-	-	-	-
Pcm 0.3_max	Max	0.20	0.55	1.60	0.035	0.040	-	-	-	0.150	-	-
S355K2	CC		CEV 0.45_max	Min	-	-	-	-	-	-	-	-	-	-	-
Pcm 0.3_max	Max	0.20	0.55	1.60	0.030	0.030	-	-	-	-	0.55	-
S355L4	CC		CEV 0.43_max	Min	-	-	-	-	-	-	-	-	-	-	-
Pcm 0.26_max	Max	0.16	0.55	1.60	0.030	0.030	-	-	-	-	0.40	-
520 M (2721, 2723)	CC	0.9	CEV 0.47_max	Min	0.05	0.05	1.00	0.000	0.020	-	-	-	0.030	-	-
Pcm 0.3_max	Max	0.20	0.50	1.50	0.025	0.040	-	-	-	0.100	0.55	-
550 M (2723)	CC	0.9	CEV 0.47_max	Min	0.05	0.05	1.00	0.000	0.020	-	-	-	0.030	0.00	-
Pcm 0.3_max	Max	0.20	0.50	1.50	0.025	0.040	-	-	-	0.100	0.55	-
S355J2 EN10025-2:2019	Std		CEV 0.47_max	Min	-	-	-	-	-	-	-	-	-	-	-
Pcm 0.35_max	Max	0.20	0.55	1.60	0.030	0.030	-	-	-	-	0.55	-

Variant

Cast

Weldability

C %

Si %

Mn %

P %

S %

Cr %

Ni %

Mo %

V %

Cu %

Al %

SB9813

CEV 0.41_max

Min

0.13

0.15

1.00

0.030

0.025

Pcm 0.25_max

Max

0.18

0.25

1.30

0.025

0.15

0.25

0.07

0.120

0.30

S355J2(M)

CEV 0.5_max

Min

0.020

Pcm 0.3_max

Max

0.20

0.55

1.60

0.035

0.040

0.150

S355K2

CEV 0.45_max

Min

Pcm 0.3_max

Max

0.20

0.55

1.60

0.030

0.55

S355L4

CEV 0.43_max

Min

Pcm 0.26_max

Max

0.16

0.55

1.60

0.030

0.40

520 M (2721, 2723)

0.9

CEV 0.47_max

Min

0.05

1.00

0.000

0.020

0.030

Pcm 0.3_max

Max

0.20

0.50

1.50

0.025

0.040

0.100

0.55

550 M (2723)

0.9

CEV 0.47_max

Min

0.05

1.00

0.000

0.020

0.030

0.00

Pcm 0.3_max

Max

0.20

0.50

1.50

0.025

0.040

0.100

0.55

S355J2 EN10025-2:2019

Std

CEV 0.47_max

Min

Pcm 0.35_max

Max

0.20

0.55

1.60

0.030

0.55

Variant	Condition	Format	Dimension [mm]	Yield strength min [MPa]	Tensile strength [MPa]	Elongation A₅ [%]	Hardness	Impact (ISO-V) strength_min
Rp_0.2 * R_eh, ** R_el
SB9813	+AR		< 16	355**	520-600	25	160-180 HB	-20 °C 40 J (long)
	16 < 40	345**	520-600	25	160-180 HB	-20 °C 40 J (long)
S355J2(M)	+AR	All formats	< 16	355**	490-630	22	150-190 HB	-20 °C 27 J (long)
All formats	17 < 40	345**	490-630	22	150-190 HB	-20 °C 27 J (long)
All formats	41 < 63	335**	490-630	21	150-190 HB	-20 °C 27 J (long)
	64 < 80	325**	490-630	30	150-190 HB	-20 °C 27 J (long)
S355K2	+AR		< 16	355**	470-630	22	140-190 HB	-20 °C 40 J (long)
	16 < 40	345**	470-630	22	140-190 HB	-20 °C 40 J (long)
	40 < 63	335**	470-630	21	140-190 HB	-20 °C 40 J (long)
S355L4	+AR		< 16	355**	470-630	22	140-190 HB	-40 °C 60 J (long)
	16 < 40	345**	470-630	22	140-190 HB	-40 °C 60 J (long)
	40 < 63	335**	470-630	21	140-190 HB	-40 °C 60 J (long)
	63 < 80	325**	470-630	20	140-190 HB	-40 °C 60 J (long)
	80 < 100	315**	470-630	20	140-190 HB	-40 °C 60 J (long)
520 M (2721, 2723)	+AR		25 < 40	400*	520-630	22	< 200 HB	-20 °C 40 J (long)
Round bar	40 < 63	390*	520-630	22	< 200 HB	-20 °C 40 J (long)
Round bar	63 < 100	380*	520-630	21	< 200 HB	-20 °C 40 J (long)
Round bar	100 < 200	350*	500-600	18	< 200 HB	-20 °C 27 J (long)
+N	Round bar	25 < 40	345*	470-630	25	< 200 HB	-40 °C 40 J (long)
Round bar	40 < 63	335*	470-630	24	< 200 HB	-40 °C 40 J (long)
Round bar	63 < 80	325*	470-630	23	< 200 HB	-40 °C 40 J (long)
Round bar	80 < 100	315*	470-630	23	< 200 HB	-40 °C 40 J (long)
Round bar	100 < 150	295*	450-600	21	< 200 HB	-40 °C 40 J (long)
Round bar	150 < 200	285*	450-600	20	< 200 HB	-40 °C 40 J (long)
550 M (2723)	+C	Round bar	22 < 55	500*	550-750	12	< 220 HB	20 °C 27 J (long)
+SH	Round bar	55 < 70	380*	490-630	22	< 200 HB	-20 °C 27 J (long)
Round bar	70 < 120	350	490-630	20	< 200 HB	-20 °C 27 J (long)
S355J2 EN10025-2:2019	+AR		< 16	355**	470-630	22	140-190 HB	-20 °C 27 J (long)
	16 < 40	345**	470-630	22	140-190 HB	-20 °C 27 J (long)
	40 < 63	335**	470-630	21	140-190 HB	-20 °C 27 J (long)
	63 < 80	325**	470-630	20	140-190 HB	-20 °C 27 J (long)
	80 < 100	315**	470-630	20	140-190 HB	-20 °C 27 J (long)

Variant

Condition

Format

Dimension [mm]

Yield strength min [MPa]

Tensile strength [MPa]

Elongation A₅ [%]

Hardness

Impact (ISO-V) strength_min

Rp_0.2 * R_eh, ** R_el

SB9813

+AR

< 16

355**

520-600

160-180 HB

-20 °C 40 J (long)

16 < 40

345**

520-600

160-180 HB

-20 °C 40 J (long)

S355J2(M)

+AR

All formats

< 16

355**

490-630

150-190 HB

-20 °C 27 J (long)

All formats

17 < 40

345**

490-630

150-190 HB

-20 °C 27 J (long)

All formats

41 < 63

335**

490-630

150-190 HB

-20 °C 27 J (long)

64 < 80

325**

490-630

150-190 HB

-20 °C 27 J (long)

S355K2

+AR

< 16

355**

470-630

140-190 HB

-20 °C 40 J (long)

16 < 40

345**

470-630

140-190 HB

-20 °C 40 J (long)

40 < 63

335**

470-630

140-190 HB

-20 °C 40 J (long)

S355L4

+AR

< 16

355**

470-630

140-190 HB

-40 °C 60 J (long)

16 < 40

345**

470-630

140-190 HB

-40 °C 60 J (long)

40 < 63

335**

470-630

140-190 HB

-40 °C 60 J (long)

63 < 80

325**

470-630

140-190 HB

-40 °C 60 J (long)

80 < 100

315**

470-630

140-190 HB

-40 °C 60 J (long)

520 M (2721, 2723)

+AR

25 < 40

400*

520-630

< 200 HB

-20 °C 40 J (long)

Round bar

40 < 63

390*

520-630

< 200 HB

-20 °C 40 J (long)

Round bar

63 < 100

380*

520-630

< 200 HB

-20 °C 40 J (long)

Round bar

100 < 200

350*

500-600

< 200 HB

-20 °C 27 J (long)

Round bar

25 < 40

345*

470-630

< 200 HB

-40 °C 40 J (long)

Round bar

40 < 63

335*

470-630

< 200 HB

-40 °C 40 J (long)

Round bar

63 < 80

325*

470-630

< 200 HB

-40 °C 40 J (long)

Round bar

80 < 100

315*

470-630

< 200 HB

-40 °C 40 J (long)

Round bar

100 < 150

295*

450-600

< 200 HB

-40 °C 40 J (long)

Round bar

150 < 200

285*

450-600

< 200 HB

-40 °C 40 J (long)

550 M (2723)

Round bar

22 < 55

500*

550-750

< 220 HB

20 °C 27 J (long)

+SH

Round bar

55 < 70

380*

490-630

< 200 HB

-20 °C 27 J (long)

Round bar

70 < 120

350

490-630

< 200 HB

-20 °C 27 J (long)

S355J2 EN10025-2:2019

+AR

< 16

355**

470-630

140-190 HB

-20 °C 27 J (long)

16 < 40

345**

470-630

140-190 HB

-20 °C 27 J (long)

40 < 63

335**

470-630

140-190 HB

-20 °C 27 J (long)

63 < 80

325**

470-630

140-190 HB

-20 °C 27 J (long)

80 < 100

315**

470-630

140-190 HB

-20 °C 27 J (long)

	Temperature °C
MS	400
AC1	720
AC3	815

Temperature °C

400

AC1

720

AC3

815

Steel works	Hofors	Smedjebacken	Imatra
CO2e/kg	120	62	76

Steel works

Hofors

Smedjebacken

Imatra

CO2e/kg

120

Steel Grade	Format	Condition	Scope 1-3 (CO2e kg /1000 kg steel)	Climate compensated Net emission = Scope 3 (CO2e kg /1000 kg steel) Scope 1 - 2 = 0 (compensated)
SB9813	Flat bar	+AR	404	167
550 M (2723)	Round bar	+AR	526	222
520 M (2721, 2723)	Round bar	+AR	525	221

Steel Grade

Format

Condition

Scope 1-3 (CO2e kg /1000 kg steel)

Climate compensated Net emission = Scope 3 (CO2e kg /1000 kg steel) Scope 1 - 2 = 0 (compensated)

SB9813

Flat bar

+AR

404

167

550 M (2723)

Round bar

+AR

526

222

520 M (2721, 2723)

Round bar

+AR

525

221

Youngs module (GPa)	Poisson´s ratio (-)	Shear module (GPa)	Density (kg/m3)
210	0.3	80	7800
Average CTE 20-300°C (µm/m°K)	Specific heat capacity 50/100°C (J/kg°K)	Thermal conductivity Ambient temperature (W/m°K)	Electrical resistivityAmbient temperature (µΩm)
12	460 - 480	40 - 45	0.20 - 0.25

Youngs module (GPa)

Poisson´s ratio (-)

Shear module (GPa)

Density (kg/m3)

210

0.3

7800

Average CTE 20-300°C (µm/m°K)

Specific heat capacity 50/100°C (J/kg°K)

Thermal conductivity Ambient temperature (W/m°K)

Electrical resistivityAmbient temperature (µΩm)

460 - 480

40 - 45

0.20 - 0.25

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Steel grade

S355J2

General Information

Similar designations

Chemical composition

Mechanical Properties

Transformation temperatures

Heat Treatment Guide generated Graphs

SUSTAINABILITY-ENVIRONMENTAL IMPACT DATA

Other properties (typical values)

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