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LIST OF CORRESPONDING FORMER NATIONAL DESIGNATIONS NEAREST EQUIVELANT
SANS 50025 / EN 10025-2 BS 4360 Din 17100
EN 10025+A1
 SANS 1431
S 235 JR Gr 40 B Rst 37-2 S 235 JRG 2 240WA
S 235 JO Gr 40 C St 37-3 U S 235 JO 240WC
S 235 J2 Gr 40 D St 37-3 N S 235 J2G3 or G4 240WDD
S 275 JR Gr 43 B St 44-2 S 275 JR 300WA
S 275 JO Gr 43 C St 44-3 U S 275 JO 300WC
S 275 J2 St 44-3 N S 275 J3G3 or G4 300WDD
S 355 JR Gr 50 B S 355 JR 350WA
S 355 JO Gr 50 C St 52-3 U S 355 JO 350WC
S 355 J2 Gr 50 D St 52-3 N S 355 J2G3 or G4 350WDD
S 355 K2 Gr 50 DD S 355 K2G3 or G4

COMPARATIVE CHARTS FOR INFORMATION AND REFERENCE PURPOSE ONLY

These charts are taken from all data sheets mentioned below each table. For more in-depth specs and Arcelor Mittal’s ladle analysis please ask for a copy of the relevant data sheet.

Maximum chemical composition (ladle analysis, percent) as specified in SANS 1431: Table 2 (as amended)
Grade C Mn
Si
 P S Nb V Nb + V AI Cu Ni Cr Mo
300WA 0.22 1.6 0.5 0.05 0.05 0.03 0.1 0.05 0.1 0.35 0.3 0.3 0.1
300WC 0.22 1.6 0.5 0.05 0.05 0.03 0.1 0.05 0.1 0.35 0.3 0.3 0.1
300WDD 0.22 1.6 0.5 0.04 0.05 0.1 0.1 0.1 0.1 0.35 0.3 0.3 0.1
350WA 0.22 1.6 0.5 0.05 0.05 0.1 0.1 0.1 0.1 0.35 0.3 0.3 0.1
350WC 0.22 1.6 0.5 0.05 0.05 0.1 0.1 0.1 0.1 0.35 0.3 0.3 0.1
350WDD 0.22 1.6 0.5 0.04 0.04 0.1 0.1 0.1 0.1 0.35 0.3 0.3 0.1

The total combination of Cu,Ni,Cr and Mo should not exceed 0,5% max. For further info refer to Arcelor Mittal’s Steel Data Sheet A3.3
Maximum Chemical composition (ladle analysis, percent) as specified in BS 4360
Grade C Mn Si P S Nb V Nb + V AI Cu Ni Cr Mo
43 A 0.25 1.6 0.5 0.05 0.05 – –
43 B 0.21 1.5 0.5 0.05 0.05 – –
43 C 0.18 1.5 0.5 0.04 0.04 – –
43 D 0.16 1.5 0.5 0.04 0.04 0.003 0.003
50 B 0.2 1.5 0.5 0.05 0.05 0.003 0.003
50 C 0.2 1.5 0.5 0.04 0.04 0.003 0.003
50 D 0.18 1.5 0.5 0.04 0.04 0.003 0.003
50 DD 0.18 1.5 0.5 0.04 0.04 0.003 0.003
For further info refer to Arcelor Mittal’s Steel Data Sheet A3,2
Maximum Chemical composition (ladle analysis, percent) as specified in EN 10025-2
Grade C Mn Si P S Nb V Nb + V AI Cu Ni Cr Mo
S 275 JR 0.21 1.5 – 0.035 0.035  0.55
S 355 JR 0.24 1.6 0.55 0.035 0.005  0.55
S 355 JO 0.20 1.6 0.55 0.035 0.035  0.55
For further info refer to Arcelor Mittal’s Steel Data Sheet A3,4
Mechanical properties
Grade TENSILE

STRENGTH

(Mpa)

 MINIMUM YIELD STRESS (Mpa)

FOR THICKNESS t (mm)

 MIN ELONGATION (%)

ON A GAUGE LENGTH OF

 CHARPY V-NOTCH

IMPACT TEST

 NORMAL SUPPLY

CONDITIONS
t≤16 16<t≤40 40<t≤63 63<t≤100 50mm 200mm 5.65√ So Test

Temp

c

 Min

Ave

energy(J)

 Max

Thick

(mm)
300 WA 450-620 300 300 290 280 24 20 22 As rolled
300 WC 450-620 300 300 290 280 24 20 22 0 27 63
350 WA 480-650 350 350 340 325 22 18 20
350 WC 480-650 350 350 340 325 22 18 20 0 27 100 A/R<=16mm N>16
50 B 490-640 355 345 340 325 18 20 20 27 100 >=12.5 normalised
50 C 490-640 355 345 340 325 18 20 0 27 100
50 D 490-640 355 345 340 325 18 20 -20 27 100 Normalised
S 275 JR 410-560 275 265 255 245 Refer data sheet A3,4 table 4 20 27 100
S 275 JO 410-560 275 265 255 245 0 27 100
S275 J2G3 410-560 275 265 255 245 -20 27 100
S 355 JR 490-630 355 345 335 325 Refer data sheet A3,4 table 4 20 27 <12,5mm as rolled >=12,5 normalised
S 355 JO 490-630 355 345 335 325 0 27
S 355 J2G3 490-630 355 345 335 325 -20 27 Normalised
For further info refer to Arcelor Mittal’s Steel data sheet A3,2, A3,3 and A3,4
Flatness tolerance for carbon steel plates
Thickness t (mm) Tolerance for width w (mm)
900 < t < 1200 1200 < t < 1500 1500 < t < 1800 1800 < t < 2100 2100 < t < 2400 2400 < t < 2700 2700 < t < 3000 3000 < t < 3200
4.5 < t < 6 19 24 32 35 38 41 44 48
6 < t < 10 16 19 24 29 32 35 38 41
10 < t < 12 14 16 16 19 22 25 29 32
12 < t < 20 13 14 16 16 19 25 25 29
20 < t < 25 13 14 16 16 16 19 22 25
25 < t < 50 13 13 14 14 16 16 16 18
50 < t < 100 10 11 13 13 13 13 14 16
Flatness is measured as the maximum deviation from a horizontal flat service.
Tables show the permissible deviations from flat for plates up to 4 metre in length or for any 4 metre length of longer plates.
For carbon steels with a carbon content higher than 0.33%, the values in Table are increased by 50%.

JR = Impact @ Room Temperature (Optional)
JO = Impact @ Zero Degrees (27J)
J2 = Impact @ -20 Degrees (27J)
K2 = Impact @ -20 Degrees (27J); Also correspond to 27J @ -30 Degrees
G2 = Rimming Steel is not permitted
G3 = Normalised
G4 = Supply condition at the manufacturers discretion
AR = As Rolled
N = Normalised

Whilst every effort has been made to ensure that the above information is accurate, Genesis Steel does not accept responsibility for any inaccuracies or misinterpretations of data