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Alloy steel / constructional steel ( picture to be attached alloy steel picture )
Description
Use of Alloy Steel is mainly in automobile industry and machinery parts. It is used for making machinery spares , shafts , gears , body parts , automotive industry body parts extra
Normally it comes in wide range of grades some them are
Through harndening steel
En 8 , en 9 , en 24 , en 19 , 4140 , 52100 , en 31 , c45 .extra
Case hardening steel
20mncr5 , 16mncr5 , en 353 , en 36 , sae 8620 extra
Applications
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Used in construction of aircrafts and heavy vehicles for crank shafts, camshafts and propellor shafts, etc.
- General Engg and mould basis.
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The chemical details of some grades are as under
PRODUCT SPECIFICATIONS OF ALLOY STEEL
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MATERIAL
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CHEMISTRY
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HEAT TREATMENT DETAILS
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AISI/
ASTM
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EN
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DIN
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JIS
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C
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SI
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MN
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P
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S
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Cr
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Ni
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M o
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V
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Anealing
(Slow Cooling)
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Quenchent
(Hot Bath)
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Quenching
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empering
(Air Cooling)
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Annealed
(HB) - Max
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Quenched
(Hrc) Tempered
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43 40
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EN24
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0.40
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0.25
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0.65
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0.03
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0.04
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1.2
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1.5
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0.37
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650-700
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OIL
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830-850
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670-530
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220
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48
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10 45
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EN43B
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CK45
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0.45
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0.25
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0.8
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0.03
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0.03
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660-700
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OIL/W ATER
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830-860
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670-53
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190
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38
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STOCKING PROGRAMME OF COLD ALLOY STEEL
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ALLOY STEEL
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AISI
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DIN
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Supply Condition
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Rounds
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Square
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Flat
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Application
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4340
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(En24)
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Annealed
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8-1000
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100-100
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300x50-500x300
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Used in construction of aircrafts and heavy vehicles for crankshafts, gearshafts, camshafts and propellor shafts etc
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1045
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Ck45
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Annealed
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25-700
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300x20-1500x250
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General engineering and mould basis.
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