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  ALLOY STEELS
BS : 970 EN:Specn
Type of Application
Chemical Composition %
C
Mn
Ni
Cr
Mo
EN-16
Manganese-Molybdenum Steel suitable for tensile ranges of 45/75 tons according to the ruling section.
0.30/0.40
1.30/1.80
0.20/0.35
EN-18
1 per cent Chromium Steel Suitable for tensile ranges of 45/65 tons according the ruling section
0.35/0.45
0.60/0.90
0.85/1.15
EN-19
1 per cent Chromium-Molybdenum Steel suitable for tensile ranges of 45/80 tons according to the ruling section of the part
0.35/0.45
0.50/0.80
0.90/1.50
0.20/0.40
EN-24
1  1/2 percent Nickel-Chromium Molybdenum Steel suitable for tensile ranges of 50/100 tons according to the ruling section of the part
0.35/0.45
0.45/0.70
1.30/1.80
2.30/2.80
0.20/0.35
EN-25
2 1/2 percent Nickel-Chromium Molybdenum Steel. (Medium Carbon), suitable for tensile ranges of 50/100 tons according to the ruling section of the part
0.27/0.35
0.50/0.70
2.30/2.80
0.50/0.80
0.40/0.70
EN-26
2 1/2 percent Nickel-Chromium Molybdenum Steel (High Carbon), suitable for tensile ranges of 60/100 tons according to the ruling section of the part
0.36/0.44
0.50/0.70
2.30/2.80
2.30/2.80
0.40/0.70
EN-27
3 per cent Nickel-Chromium Molybdenum Steel suitable for tensile ranges of 55/80 tons, according to the ruling section of the part
0.25/0.35
0.40/0.70
3.00/3.75
0.50/1.30
0.20/0.65
EN-28
3 1/2 percent Nickel-Chromium Molybdenum Steel suitable for tensile ranges of 60/90 tons according to the ruling section of the part
0.25/0.40
0.40/0.70
3.00/4.50
0.75/1.50
0.20/0.65
EN-29 B
3 percent Nickel-Chromium Molybdenum Steel suitable for tensile ranges of 45/100 tons, according to the ruling section of the part
0.15/0.35
0.30/0.65
0.40 max
2.50/3.50
0.30/0.70
EN-30 B
3 per cent Nickel-Chromium Steel Case Hardening Steel
0.26/0.34
0.40/0.60
3.90/4.30
1.10/1.40
0.20/0.40
EN-36
4 1/2 percent Nickel-Chromium Molybdenum Steel suitable for tensile for gears, aero engine connecting rounds high duty bolts, spindles etc.
0.12/0.18
0.30/0.60
3.00/3.75
0.60/1.10
EN-36 C
4 percent Nickel-Chromium Molybdenum Case Hardening Steel
0.12/0.18
0.30/0.60
3.00/3.75
0.60/1.10
0.10/0.25
EN-39 B
4 1/4 Percent Nickel-Chromium case hardening steel suitable for High Duty Transmission & Reduction gears
0.12/0.18
0.50 max
3.80/4.50
1.00/1.40
0.15/0.35
EN-40 B
3 per cent Chromium-Molybdenum Nitriding Steel
0.20/0.30
0.40/0.650
0.40 max
2.90/3.50
0.40/0.70
EN-41 B*
1 1/4 percent Chromium-Aluminium Molybdenum Nitriding Steel
0.35/0.45
0.30/0.65
0.40 max
1.40/1.80
0.10/0.25
** EN 52
Silicon Chromium Valve Steel
0.40/0.50
0.30/0.60
7.50/9.50
EN-100
Low Alloy Steel
0.35/0.45
1.20/1.50
0.50/1.00
0.30/0.60
0.15/0.25
EN-111
Low Nickel Chromium Steel
0.30/0.40
0.60/0.90
1.00/1.50
0.45/0.75
EN-202
Carbon-Manganese Case-Hardening Steel (Semi - free cutting)
0.08/0.18
1.20/1.50
EN-353
1 1/4 per cent Nickel-Chromium Case-Hardening Steel
0.10/0.20
0.50/1.00
1.00/1.50
0.75/1.25
0.08/0.15
EN-354
1 1/2 percent Nickel-Chromium Molybdenum Case-Hardening Steel
0.10/0.20
0.50/1.00
1.50/2.00
0.75/1.25
0.10/0.20

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