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EN24 24CrMo4 Alloy Steel For Crankshaft, Gear, Drive Shaft

EN24 is an alloy steel, also known as 40CrNiMo.
It is a medium carbon alloy steel with a chemical composition of about 0.36-0.44% carbon, 0.45-0.70% silicon, 0.45-0.70% manganese, 1.00-1.40% chromium, 0.3-0.6% nickel, 0.20-0.35% molybdenum and residual iron. EN24 alloy steel obtains different mechanical properties by adjusting heat treatment process. For EN24 steel, it is usually quenched and tempered to improve its strength and toughness. After proper heat treatment, EN24 provides high strength, excellent wear resistance and good impact toughness.
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  • EN24/40CrNiMo/24CrMo4

Chemical composition:
The following table shows the chemical composition of EN24 steel:
Element
C
Si
Mn
P
S
Cr
Mo
Ni
Content (%)
0.36-0.44
0.10-0.35
0.45-0.70
0.035 Max
0.040 Max
1.00-1.40
0.20-0.35
1.30-1.70
Mechanical Properties:
Condition
Tensile
N/mm²
Yield
N/mm²
Elongation
%
Izod
KCV J
Hardness
Brinell
T
850-1000
650
13
35
248-302
U
925-1000
755
12
42
269-331
V
1000-1150
850
12
42
293-352
W
1075-1225
940
11
35
311-375
X
1150-1300
1020
10
28
341-401
Y
1225-1375
1095
10
21
363-429
Z
1550
1235
5
9
444
Heat treatment:
Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each steel component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of alloy steel.
Other:
EN24 Steel Round Bar, EN24 Steel Round Bar Manufacturers, EN24 Steel Suppliers, EN24 Stockist, EN24 Steel Dealers, EN24 Steel Distributors, EN24 Wholesalers, EN24 Steel Traders, EN24 Steel Square Distributors, EN24 Steel Flat Bar,
EN24, EN24 Steel, EN24 Chemical composition, EN24 Mechanical properties, EN24 Equivalent Grades, EN24 Steel plate, EN24 Steel sheet, EN24 Manufacturers, EN24 Suppliers, EN24 Dealers, EN24 Stockist, EN24 Distributors, EN24 Wholesalers, EN24 Traders.

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 Finishing rolling process: 

Finishing rolling is a process to obtain higher precision and better surface quality by rolling the heat-treated seamless steel pipe multiple times. The specific steps include: heat treatment - pickling - cooling - finishing rolling - sizing - cutting - length - inspection - packaging. Finishing rolling can improve the precision, surface quality and mechanical properties of steel pipe.

Cold drawing process: 

Cold drawing is a process of drawing the heat-treated seamless steel pipe one by one in a cold state to obtain high precision, high surface quality and high mechanical properties. The specific steps include: heat treatment - pickling - cooling - cold drawing - deoxygenation - wet pickling - cold water washing - leveling - straightening - pickling - cold water washing - oxide skin - cold drawing - sizing - straightening - pickling - cold water washing - deoxygenation - polishing - inspection - packaging. Cold drawing can significantly improve the dimensional accuracy, surface quality and mechanical properties of steel pipes.

Hot rolling production process: 

Hot rolling is the process of heating the blank to a certain temperature, and then forming it into seamless steel pipe through multiple rolls. The specific steps include: heating - rolling - roll probe - sizing - cooling - trimming - rod breaking - inspection - packaging. Hot rolling can produce seamless steel pipes with large diameters and wall thickness, but the accuracy and surface quality are not as good as fine rolling and cold drawing.

These three processes have different applications in the production of seamless precision steel pipes, and the specific choice depends on the required dimensional accuracy, surface quality and mechanical properties.

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