Chemical Composition And Mechanical Properties of Steel Back

IS:10748 - Specification Of Hot Rolling Steel Strips For Welded Tubes &Pipe
CHEMICAL COMPOSITION
Grade C% Max Mn% Max. S% Max. P% Max.
I 0.10 0.50 0.05 0.05
II 0.12 0.60 0.05 0.05
III 0.16 1.20 0.05 0.05
IV 0.20 1.30 0.05 0.05
V 0.25 1.30 0.05 0.05

MECHANICAL PROPORTIES
Grade UTS( Min.) Mpa YS( Min.) Mpa EI. % ( Min. ) 5.65   Sqrt (So)
I 290 170 30
II 330 210 28
III 410 240 25
IV 430 275 20
V 490 310 15

IS : 6240 HR - Steel Plate, Sheet and Coil for LP
CHEMICAL COMPOSITION
Consititient Percent
Carbon, Max. 0.16
Manganese, Min 0.30
Silicon, Max. 0.25
Sulphur, Max. 0.030
Phosphorous, Max. 0.030
Aluminium, Min 0.02

MECHANICL PROPORTIES
Proporty Grade *
Tensile Strength. Mpa(Kgf/mm.sq.) 350 to 450 ( 36 to 46 )
Yield Strength. Mpa ( Kg/mm.sq.)Min 240 (25)
Elongation, Min percent on guage length 5.65 OSo 25
Bend t
EC v ( for 2.80-3.15 mm thickness) min 13.5
* Both longitudinal and transverse directions.

TOLERANCE AS PER IS:513
Tolerance on Thickness of Sheets
Tolerance on the thickness for different width
Nominal
Thickness
Upto 1250mm Above 1250
Upto 1600
Above 1600
Upto 0.25 +/- 0.03 - -
Above 0.25-0.40 +/- 0.04 - -
Above 0.40-0.60 +/- 0.05 +/- 0.06 -
Above 0.60-0.80 +/- 0.06 +/- 0.07 +/- 0.08
Above 0.80-1.00 +/- 0.08 +/- 0.09 +/- 0.10
Above 1.00-1.25 +/- 0.09 +/- 0.10 +/- 0.12
Above 1.25-1.60 +/- 0.11 +/- 0.12 +/- 0.14
Above 1.60-2.00 +/- 0.12 +/- 0.14 +/- 0.16

Tolerance on Width Of Sheets
Width of Sheets Tolerance
Upto 1250 mm +7 -0
Above 1250 mm +10 -0

Tolerance on Length of Sheets
Length Tolerance
Upto 2000 mm +15 -0
Above 2000 mm +0.75% of the length -0

Chamber Tolerance For Coils and Cut Length
Form Tolerance
Coil 20mm in any 5000 mm length
Cut Length 0.4% X length

Standard Flatness Tolerance for cut lengths
Thickness Tolerance on specified width
Upto 1200 Above 1200 - Upto 1500 Above 1500
Upto 0.63 15 18 22
Above 0.63-1.25 12 15 19
Above 1.25 10 12 17

Special Flatness Tolerance for
Cut lengths Roller Levelled and Stretcher Levelled
Thickness Tolerance on specified width
Upto 1200 Above 1200 Upto 1500 Above 1500
Upto 0.63 6 7 8
Above 0.63-1.25 5 6 7
Above 1.25 4 5 6

IS:2062 - Specification of Steel for General Structural Purposes
CHEMICAL COMPOSITION
Grade C% Max. Mn% Max. S% Max. P% Max. Si% Max. C.E.% Max.
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

MECHANICAL PROPORTIES
Grade UTS(MPa)Min. Y.S.(MPa)Min. El.%Min. 5.65 Sqrt(So) Bend
Test
A 410 250 240 230 23 3T
B 410 250 240 230 23 2T & 3T *
C 410 250 240 230 23 2T
  * 2T - <=25mm
  * 3T - >   25mm

IS:3039 - Specification of Structural Steel for Ship Building
CHEMICAL COMPOSITION
Grade C% Max. Mn% S% Max. P% Max. Si% Max. Al% Min.
I 0.23 * 0.040 0.040 ** 0.01
II 0.21 0.70-1.4 0.040 0.040 0.10-0.35 -
III 0.18 0.70-1.5 0.040 0.040 0.19-0.50 0.015

MECHANICAL PROPORTIES
Grade UTS (MPa) Y.S.(MPa) Min. EI.% Min.
5.65 Sqrt (So)
<25 mm. >25<50 mm.
I 400-490 230 220 22
II 400-900 235 235 22
III 400-490 235 235 22

IS:1786 - High Strength Deformed Steel Bars and Wires for Concrete Reinforcement 
CHEMICAL COMPOSITION
Constituent Per cent,Maximum SAIL-TMT(Fe 415/FE  500/Fe 550)
  SAIL
TMT
415
Fe 415 SAIL
TMT 500
Fe 500 SAIL
TMT
550
Fe 500  
Carbon 0.25 0.30 0.25 0.30 0.25 0.30 0.20
Sulphur 0.05 0.06 0.05 0.055 0.05 0.055 0.045
Phosphorus 0.05 0.06 0.05 0.055 0.05 0.050 0.045
Sulphur and Phosphorus 0.10 0.11 0.10 0.105 0.10 0.10 0.09
Corrosion Resistant Elements - - - - - - 0.75 min
Carbon Equivalent - - - - - - 0.53 max
MECHANICAL PROPERTIES
Property Grade
  Fe 415 SAIL
TMT
415
Fe
500
SAIL
TMT
500
Fe
550
SAIL
TMT
550
0.2 per cent prrof stress/yield stress Min N/mm.sq. 415 415 500 500 550 550
Elongation.per cent ,Min,on gauge length 5.65.Square Root(A) where A is the cross-sectional area of the test piece 14.5 22(Up to 28mm dia) 20(Above 28 mm dia) 12 20(Up to 28mm dia) 18 (Above 26 mm dia) 8 18(Upto 25 mm dia)16(Above 28 mm dia)
Tensile Strength,Min. 10% more than the actual 0.2% proof stress but not less than 48.5 N/mm.sq. 10% more than the actual 0.2% proof stress but not less than 500 N/mm.sq. 8% more than actual 0.2% proof stress but not less than 545 N/mm.sq. 8% more than the actual 0.2% proof stress but not less than 580 N/mm.sq.
(Upto 28mm dia) & 560 N/mm.sq.)
(above 28 mm dia)

 

6% more than the actual
0.2% proof
stress but not less than 585 N/mm.sq. 

(Upto 28mm dia) & 560 N/mm.sq.)
(above 28 mm dia)

6% more than the actual
0.2% proof
stress but not less than 630 N/mm.sq.
(Upto 28mm dia)
& 610 N/mm.sq.

(above 28 mm dia)
Upto 28mm dia) & 560 N/mm.sq.)
(above 28 mm dia)


SPECIFICATION FOR WIRE RODS  
Specifications Grade Chemical Composition Mechanical Properties
%C %Mn %S %P Yield
Mpa
Tensile
Mpa
Elongation %
Structure Quality
Wire Rods
IS2062
Grade A
0.23max 1.50max 0.05max 0.50max 250min 410min 23min
Drawing Quality
Wire Rods
SWR-14 0.14max
0.08-013
0.60max
0.30-0.60
0.05max
0.05 max
0.05max
0.04 max
- - -
Low Carbon Drawing
Quality Wire Rods
SWR-10
SAE-1008
0.1max
0.1 max
0.6max
0.3 max
0.04max
0.05 max
0.04max
0.04 max
- - -
Electrode Quality
Wire Rod
IS-2879
Rimming Grade
0.1max 0.38-0.62 0.03max 0.03max - - -

IS:1079-Specification of Hot Rolled Carbon Steel Sheets & Strips
CHEMICAL COMPOSITION
Grade C%
Max
Mn %
Max
S%
Max
P%
Max
O 0.15 0.60 0.055 0.055
D 0.12 0.50 0.04 0.04
DD 0.10 0.45 0.035 0.035
EDD 0.08 0.40 0.030 0.03
MECHANICAL PROPERTIES
Grade UTS
MPa
YS(Min.)
MPa
EI.% Min.
Lo-80 mm b-20 mm
O - - -
D - - 28
DD 260-390 - 32
EDD 260-380 - 36

Specification Chemical composition (max) Mechanical Properties
  C Mn S P Tensile
Strength
Min mpa
Yield
Strength
Min mpa
Elong%in
guage
length
5.65 So
Nb+V+T
IS-2062 Gr A (SK) 0.23 1.5 0.050 0.050 410 240 23 0.20
IS-2062 Gr B (SK) 0.20 1.5 0.045 0.045 410 240 23  
SAIL-MA300 0.25 1.5 0.055 0.055 440-560 300 20 Maximum
for all
SAIL-MA300 HI 0.20 1.5 0.040 0.040 440-560 300 21
SAIL-MA 350 0.25 1.5 0.040 0.040 490-610 350 20
SAIL-MA 350 HI 0.20 1.5 0.040 0.040 540-660 410 19  
SAIL-MA 410 0.25 1.5 0.040 0.040 540-660 410 20 .

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