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TECHNICAL INFO
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Mild Steel Plates

Chemical Composition

Specification Grade %C %Mn %P %S %Si %CE %Nb+V+Ti Al%
Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max
IS 2062/1999 A - 0.23 - 1.50 - 0.050 - 0.050 - 0.40 - 0.42 - - - -
B - 0.22 - 1.50 - 0.045 - 0.045 - 0.40 - 0.41 - - - -
C - 0.20 - 1.50 - 0.040 - 0.040 - 0.40 - 0.39 - - - -
Mode of deoxidation : Grade A - Killed or Semi Killed, Grade B and C - Killed. Cu between 0.2 and 0.35% for copper bearing quality.
SAILMA 300 - 0.25 - 1.50 - 0.055 - 0.055 - - - - 0.30 - -
300 HI - 0.20 - 1.50 - 0.040 - 0.040 - - - - 0.30 - -
350 - 0.25 - 1.50 - 0.055 - 0.055 - - - - 0.30 - -
350 HI - 0.20 - 1.50 - 0.040 - 0.040 - - - - 0.30 - -
410 - 0.25 - 1.50 - 0.055 - 0.055 - - - - 0.30 - -
410 HI - 0.20 - 1.50 - 0.040 - 0.040 - - - - 0.30 - -
450 - 0.25 - 1.50 - 0.055 - 0.055 - - - - 0.30 - -
450 HI - 0.20 - 1.50 - 0.040 - 0.040 - - - - 0.30 - -
ASTM-A-36 - 0.25 0.80 1.20 - 0.040 - 0.050 0.15 0.40 - - - - - -
DIN 17100 ST 52.3 0.20 0.22 - 1.60 - 0.040 - 0.040 - 0.55 - - - - 0.02 -


Mechanical Properties

Specification Grade Yield Strength
Mpa Min		 Ultimate Tensile
Strength Mpa Min		 Elongation % Min
GL 5.65 /S0
< 20 20-40 > 40
IS 2062/1999 A 250 240 230 410 23
B 250 240 230 410 23
C 250 240 230 410 23
SAILMA 300 300 440-560 20
300 HI 300 440-560 21
350 350 490-610 20
350 HI 350 490-610 21
410 410 540-660 19
410 HI 410 540-660 20
450 450 570-720 18
450 HI 450 570-720 19
ASTM-A-36 250 400-550 200 mm - 18,
50 mm - 21
DIN 17100 ST 52.3 ≤ 16 mm >16 ≤ 40 >40 ≤ 63 490-630 18
355 345 335