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Chemical Composition And Mechanical Properties of Steel (Indian Standard)

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 PROPERTIES

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
Constituent 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
MECHANICAL PROPERTIES
Property Grade *
Tensile Strength Mpa (kgf/mm²) 350 to 450 ( 36 to 46 )
Yield Strength. Mpa ( Kg/mm²) 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 1250
mm
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

 

Chamfer Tolerance For Coils and Cut Length

Form Tolerance
Coil   20 mm 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 PROPERTIES
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

Percent, 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 percent proof stress/yield stress Min N/mm.sq. 415 415 500 500 550 550
Elongation.percent ,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
0.23 max 1.50 max 0.05 max 0.50 max 250 min 410 min 23 min
Drawing Quality
Wire Rods
SWR-14 0.14 max
0.08-013
0.60 max
0.30-0.60
0.05 max
0.05 max
0.05 max
0.04 max
- - -
Low Carbon Drawing
Quality Wire Rods
SWR-10
SAE-1008
0.1 max
0.1 max
0.6 max
0.3 max
0.04 max
0.05 max
0.04 max
0.04 max
- - -
Electrode Quality
Wire Rod
IS-2879
Rimming Grade
0.1 max 0.38-0.62 0.03 max 0.03 max - - -

 

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
% Elongation
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-MA 300 0.25 1.5 0.055 0.055 440-560 300 20 Maximum
for all
SAIL-MA 300 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 .

THINK!- MARYLAND METRICS - The One-Stop Source For Metric And British Sized Fasteners, Wrenches, Cutting, & Measuring Tools, Metal Shapes, Oil Seals, O-Rings, Mechanical Power Transmission Equipment, Bearings, Hydraulic And Pneumatic Fittings & Tubing, Workholding Components, Plumbing Fittings, & Some Electrical & Electronic Components. Click to go to Maryland Metrics home page


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