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C40 steel plate,under EN 10083 standard, we can regard C40 steel plate as high carbon steel. C40 is a high carbon structural steel with poor welding performance,so it is mainly used for manufacturing wear parts,like Shaft,Gear and so on.
C40 steel plate is one mainly of high carbon steel.EN 10083 C40 steel plate is meduim Carbon Steels are similar to low carbon steel except that the carbon ranges from 0.30 to 0.60% & the manganese from 0.50 to 1.65%. Increasing the carbon content is approximately 0.5% with an accompanying increase in manganese allows medium carbon steels to be used in the quenched & tempered conditions. This steels are of particular importance because of unique combination of strength & toughness after heat treat treatment.
C40 steel plate Chemical analysis -% by mass
|
Chemical elements |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Ni |
Cr+Mo+Ni |
|
%, by mass |
0,37-0,44 |
0,40 |
0,50-0,80 |
0,045 |
0,045 |
0,40 |
0,10 |
0,40 |
0,63 |
|
Permissible deviation |
± 0,02 |
+ 0,03 |
± 0,04 |
+ 0,005 |
+ 0,005 |
+ 0,05 |
+ 0,03 |
+ 0,05 |
|
At the option of the manufacturer the elements aluminium, titanium, vanadium and niobium may be added singly or in combination for grain size control purposes.
Elements not quoted in table shall not be added to the steel without the agreement of the purchaser, except for the purpose of finishing the heat.
Mechanical properties in the normalized conditions:
|
Thickness of ruling section tR |
|||||
|
Diameter in mm |
tR ≤ 100mm |
100< tR ≤250mm |
250< tR ≤500mm |
500< tR ≤1000mm |
|
|
Re min (N/mm2) |
290 |
260 |
- |
- |
|
|
Rm min (N/mm2) |
550 |
530 |
- |
- |
|
|
A % min. |
l-longitudinal |
17 |
17 |
- |
- |
|
tr -transverse |
- |
- |
- |
- |
|
|
KV min * (J) |
l-longitudinal |
- |
- |
- |
- |
|
tr -transverse |
- |
- |
- |
- |
|
1N/mm2=1MPa
C40 steel plate Heat treatment conditions
|
Quenching |
Cooling medium |
Tempering |
Normalizing |
|
830 to 870 |
Water or oil |
550 to 660 |
850 to 890 |
GB T 5312 Carbon and carbon-manganese steel seamless steel tubes and pipes are mainly for ship use, also known as shipbuilding steel pipes. Under GB T 5312, there are mainly 5 steel grades: grade 320, 360, 410, 460 and 490. Each grade covers three levels: I, II, III.
Angle steel, commonly known as angle iron, is a long strip of steel whose sides are perpendicular to each other. There are equal angle steels and unequal angle steels. The two sides of equal angle steel are equal in width. The unequal angle steel is also known as L shape profile steel.
Flat bar steel can be produced according to the user's needs, with fixed thickness, width and length. It can reduce the cutting process for users, reduce the consumption of labor and materials, and also reduce the processing loss of raw materials.
Bulb flat steel for shipbuilding
The bulb flat steel is a kind of medium section material which is mainly used in the field of shipbuilding and bridge building, and the shipbuilding bulb flat steel is an auxiliary medium section material for shipbuilding.
The steel for shipbuilding and oil platform---FH40, is the high tensile strength steel.The shipbuilding steel FH40 is the Hull structural steel.We can provide FH40 shipbuilding steel plate price.
The steel for shipbuilding and oil platform---EH40, is the high tensile strength steel.The shipbuilding steel EH40 is the Hull structural steel.We can provide EH40 shipbuilding steel plate price.
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