EN24 Bright Bars, EN24 Bright bar manufacturer, EN24 Bright bar Rods Supplier, EN24 Bright bar Stockiest, EN24 Bright bar Dealers, EN24 Bright bar Distributors, EN24 Bright bar Whole sellers.
 
EN24 is a very high strength steel alloy which is supplied hardened and tempered. The grade is a nickel chromium molybdenum combination – this offers high tensile steel strength, with good ductility and wear resistance characteristics. With relatively good impact properties at low temperatures, EN24 is also suitable for a variety of elevated temperature applications. EN24 sections larger than 250mm may still be available in the quenched and tempered condition, but it should be noted that a fall-off in mechanical properties may be apparent approaching the center of the bar. It is therefore recommended that larger sizes are supplied in the annealed (softened) condition, and that quenching and tempering is carried out after initial stock removal.  This should achieve better mechanical properties towards the core.
 
Grade Application:
• High strength shafts
• Punches & dies
• Drill bushings
• Retaining rings
• Gears
 
Equivalent grades:
BS 970:1955 EN24T
BS 970:1991 817M40T
German / DIN 34CrNiMo6
French AFNOR 35NCD6
American AISI / SAE 4340
German Werkstoff No. 1.6582
European Standard EN10277-5
 
Addition to other grades:
MS, EN1a, EN3b, EN8, EN8D, EN9, EN19, EN31, EN32B, EN36C, EN41B, EN43B, En47, EN353, IS2062, 42Crmo4, HCHCR, D2, D3, H-11, H-13, CW-1, OHNS, M2, M35, M42, 2714, SKD-11, P20, P20+s, P20+Ni, ASTM Sa-36, ASTM SA-105, SAE 1018, SAE 4140, SAE 8620, 16MNCR5, 20MNCR5, C20, C35, C40, C45, C50, C60, CK45, 20C8, 40C8, 45C8, 55C8, C55MN75, SAE52100, S40C, S355J2G3.
 
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Chemical composition:
The following table shows the chemical composition of EN24 steel:
Element
C
Si
Mn
S
P
Cr
Mo
Ni
Content (%)
0.36-0.44
0.10-0.35
0.45-0.70
0.040 Max
0.035 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
 
Hardness:
248 – 302
 
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.
 
Hardening:
EN24 is supplied  ready heat treated. If further heat treatment is required annealed EN24 should be heated slowly to 830-850°C and after adequate soaking at this temperature quench in oil. Temper as soon as tools reach room temperature. Hardening from a neutral salt bath, will reduce the possibility of scaling or decarburization. Heat to 830-850°C and after equalization quench in oil.
 
Tempering:
Heat carefully to a suitable temperature selected by reference to the tempering chart or table, soak at the temperature for 2 hours per 25mm of ruling section, then all to cool in the air. Tempering between 250-375°C is not advised as tempering within this range will seriously reduce the impact value. The tempering temperature is dependent on the required mechanical properties, the steel can achieve EN24U, EN24V, EN24W, EN24Y & EN24Z.
 
Physical Properties:
Thermal conductivity at °C
W/(m*k)
40.5
20
32.5
350
25.5
700
 
Thermal Properties:
Thermal conductivity – 41.9 W/m-°C
 
Forging Properties:
Preheat carefully, then raise temperature to 1000-1100°C for forging. Do not forge the steel below 850-1100°C. After forging cool slowly preferably in a furnace.
 
Stress Reliving:
When parts are heavily machined, ground or otherwise subject to cold work, stress relieving will be beneficial prior to hardening. Heat carefully to 650-670°C, soak well before cooling in the furnace or in the air.
 
Normalizing:
1.Nominal normalizing temperature:840-900°C.
2.Hold the temperature for several hours.
3.Cooling in the air.
 
Annealing:
Heat slowly to 840-860°C, soak well and allow to cool with the furnace to 580°C, before withdrawing.
 
Density:
Density – 7840 kg/m3
 
Supply Cities:
Ahmedabad, Amaravathi, Ambattur, Bangalore, Belgaum, Chennai, Chittoor, Coimbatore, Dindigul, Mysore, Nellore, Hyderabad, Kochi, Mangalore, Tirupur, Thoothukudi, Madurai, Andhra Pradesh, Karnataka, Puducherry, Kerala, Tamil Nadu, Telangana, Salem, Thajavur, Tiruchurapalli, Comibatore, Erode,  Vellore, Ranipet, Sivakasi, Karur, Hosur, Nagercoil, Kanchepuram, Karaikudi, Neyveli, Cuddalore, Kumbakonam, Thiruvannamalai, Pollachi, Rajapalayam, Gudiyatham, Pudukottai, Vaniyambadi, Ambur, Nagapattinam, Trivandrum, Vijaywada, Guntur, Thirupathi, Nazarathpet, Kakinada, Kurnool, Kadapa, Nizamabad, Mahabubnagar, Karimnagar.