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MANGANESE STEEL IS 276
Chemical Composition
GRADE
C
Si
Mn
P
S
Cr
Mo
Ni
1
1.05-1.35
1.0
11.0-14.0
0.08
0.025
-
-
Mn12
2
0.90-1.05
1.0
11.5-14.0
0.08
0.025
-
-
-
3
1.05-1.35
1.0
11.5-14.0
0.08
0.025
1.5-2.5
-
Mn14cr2
4
0.70-1.30
1.0
11.5-14.0
0.08
0.025
-
-
3.0-5.0
5
1.05-1.45
1.0
11.5-14.0
0.08
0.025
-
1.8-2.1
-
6
1.05-1.35
0.30-0.90
16.0-19.0
0.08
0.025
-
-
-
7
1.05-1.35
0.30-0.90
16.0-19.0
0.08
0.025
1.5-2.5
-
Mn18cr2
Physical Properties
Grade
Tensile Strength Min. (MPa)
Yield Stress Min. (MPa)
Elongation Percent Min.
Hardness HB Max.
Angle of Bend Degrees Min.
1
600
300
24
229
150
2
---
---
---
229
150
3
600
300
24
229
150
4
---
---
---
229
150
5
---
---
---
229
150
6
---
---
---
280
150
7
---
---
---
280
150
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CAST STEEL IS 1030
Chemical Composition
Grade
C Max.
Si Max.
Mn Max.
P Max.
S Max.
Cr Max.
Ni Max.
Mo Max.
Cu Max.
V Max.
200-400N
---
---
---
0.045
0.040
---
---
---
---
---
200-400W
0.25
0.60
1.00
0.040
0.035
0.35
0.40
0.15
0.40
0.05
230-450N
---
---
---
0.045
0.040
---
---
---
---
---
230-450W
0.25
0.50
1.20
0.040
0.035
0.35
0.40
0.15
0.40
0.05
280-520N
----
---
---
0.045
0.040
---
---
---
---
---
280-520W
0.25
0.60
1.20
0.040
0.035
0.35
0.40
0.15
0.40
0.05
340-570N
---
---
---
0.045
0.040
---
---
---
---
---
340-570W
0.25
0.60
1.50
0.040
0.035
0.35
0.40
0.15
0.40
0.05
Note: The choice of chemical composition except for P and S in the grades other than the grades requiring case if welding and           having the suffix W is left to the discretion of the manufacturer.
Physical Properties
Grade
 Tensile Strength MPa min.
Yield Stress MPs Min.
Elongation Percent Min.
Reduction of Area Percent Min.
Impact Strength J Min.
Angle of Bend Degrees Min.
200-400N
400
200
25
40
30
90
200-400W
400
200
25
40
45
90
230-450N
450
230
22
31
25
90
230-450W
450
230
22
31
45
90
280-520N
520
280
18
25
22
60
280-520W
520
280
18
25
22
60
340-570N
570
340
15
21
20
60
340-570W
570
340
15
21
20
60
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CAST IRON IS 210
Physical Test Requirements
Grade (See IS 4843:1968)
Tensile Strength Min MPa (N/mm2)
Brinell Hardness HB
FG 150
150
130 to 180
FG 200
200
160 to 220
FG 220
220
180 to 220
FG 260
260
180 to 230
FG 300
300
180 to 230
FG 350
350
207 to 241
Fg 400
400
207 to 270