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Classifications Mechanical  Properties
Yield Point N/mm(min)ff Tensile Strength N/mm Yield Ratio %(max) Elongation % (min)ff
Thickness Thickness Thickness
t  16 16  t  40 t  12 t  5 5 < t  16 t > 16
TIS 1227 SM400 245 235 400-510 - 23 18 22
SM490 325 315 490-610 - 22 17 21
SM520 365 355 520-640 - 19 15 19
SS400 245 235 400-510 - 21 17 21
SS490 285 275 490-610 - 19 15 19
SS540 400 390 540 min - 16 13 17
JIS G3101 SS400 245 235 400-510 - 21 17 21
SS490 285 275 490-610 - 19 15 19
SS540 400 390 540 min - 16 13 17
JIS G3106 SM400A 245 235 400-510 - 23 18 22
SM400B 245 235 400-510 - 23 18 22
SM490A 325 315 490-610 - 22 17 21
SM490B 325 315 490-610 - 22 17 21
SM490YA 365 355 490-610 - 19 15 19
SM490YB 365 355 490-610 - 19 15 19
JIS G3136 SN400A 235 235 400-510 - 17 17 21
SN400B 235-355G 235-355 400-510 80H 18 18 22
SN490B 325-445G 325-445 490-610 80H 17 17 21
JIS G3116 SG295 295 440 min -   26  
          t  1.6 1.6 < t 3.2 t > 3.2
JIS G3131 SPHC - - 270 min - 27 29 31
EN10025 S275JR 275 265 410-560 - 22 22 22
S355JR 355 345 490-630 - 22 22 22
ASTM A36 250 400-550 -   20  
A572 Gr42 290 415 min -   20  
A572 Gr50 345 450minE -   18  
A992 345-450 450 min 85D   18  
A283C 205 380-515 -   22  
DIN 17100 St33 185 175 290 -   16  
St37-2 235 225 340-470 -   24  
St44-2 275 265 410-540 -   20  
St50-2 295 285 470-610 -   18  
St52-3 355 345 490-630 -   20  

Remark :
  • Carbon Equivalent (%) = C+Mn/6 + Si/24 + Ni/40 + Cr/5 + Mo/4 + V/14 (JIS Standard)
  • Carbon Equivalent (%) = C+Mn/6 + (Cr + Mo + V) / 5 + (Ni + Cu) / 15 (AS, ASTM Standard)
  • Chemical Composition on sensitivity of welding crack = C + Si/30 + Mn/20 + Cu/20 + Ni/60 + Cr/20 + Mo/15 + V/10 + 5B
  • Bend test on material grades SS400, SS490, SS540
  • Additionnal chemical composition controls for material under grade A992 are as follows : Ni (max) = 0.45, Cr (max)= 0.35,Mo (max.) = 0.15 and Mn/S (min.) = 20
    * Nitrogen control excluded

 

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