EN24 Round Bar
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EN24 Round Bars, EN24 Carbon Steel Rods manufacturer, EN24 Steel Round Bar Stockists, Supplier, Wholesaler, Distributor, Dealer, Trader
EN24 Round Bars, EN24 Round Bar manufacturer, EN24 Rods Supplier, Dealer, Stockists,EN24 Round Bar suppliers and manufacturers in India, buy any quantity & size at factory rate.
Tronixalloy.com is India’s best manufacturer, exporter, and supplier of EN24 Round Bar. Medium carbon steel EN24 Round Bars have a tensile strength comparable to mild steel and are made of medium carbon steel. In addition to tubes, studs, bolts, connecting rods, screws, and rollers, it is suitable for a wide range of manufacturing applications requiring high strength. We are one of the pioneering companies manufacturing and exporting EN24 Round Bar.
With nickel, chromium, and molybdenum alloying, this is a high-ductility steel that is decently ductile and resistant to corrosion. EN24 Round Bar is rugged and hardened before delivery. The EN24 round bars possess decent internal and high exterior strength, making them highly wear-resistant.
As a result of its nickel chromium molybdenum mixture, EN24 Round Bar offers excellent flexibility, wear resistance, and wear resistance. In addition, EN24 steel round bars are suitable for various elevated temperature applications, with comparatively good influence properties at low temperatures, whereas EN24 steel round bars provide a good combination of flexibility, power, and attire resistance at low temperatures.
The EN24 round bar size is also known as the 817M40 round bar size. In the complaint, EN24 is maintained at 850/1000 N/mm2. A standard EN24 plate comes from Micro Metals in thicknesses between 10mm and 300mm, widths between 10mm and 950mm, quadrangles between 20mm and 300mm, and suites between 20 x 10 up to 3000 x 300mm.
Aside from being hardened and tempered before delivery, EN24 has nickel, chromium, and molybdenum, giving it good tensile strength, flexibility, and wear resistance. EN24 offers relatively good impact properties at low temperatures but is also suitable for various applications at higher temperatures.
Round bars made from EN24 are highly wear-resistant due to their high internal and external strengths. EN24 steel round bars combine flexibility, strength, and wear resistance. En24 is an alloy engineering steel with very high strength.
Components for aircraft and heavy machinery, such as gears, shafts, and bolts, are commonly manufactured with it. The tensile strength, toughness, and wear resistance of EN24 are excellent.
EN24 round bars are made from EN24 steel that has been shaped into a cylindrical shape. Due to their strength and durability, round bars are commonly used in manufacturing shafts, axles, and other components requiring a strong and durable material.
In addition to being available in a range of diameters and lengths, En24 round bars can be cut to custom sizes if necessary. Strength and durability are often required in high-stress applications.
However, it is essential to note that EN24 steel must be heat treated to achieve its full strength and toughness. Heat treatment involves heating steel to a specific temperature, holding it for a certain period, and then quenching it in a cooling medium such as oil or water.
How is EN24T round mild steel bar/rod used?
Due to its excellent machinability in the “T” condition, EN24T round steel bar is a commonly used through-hardening alloy steel grade. Shafts, gears, bolts, and many other components are often specified in EN24T.
We stock EN24T round rod (nickel chromium molybdenum specification) with a 248/302 HB hardness rating and combine tensile strength, flexibility, and shock and wear resistance.
Hardening these round bars further to produce products with increased wear resistance is possible. Still, they should not be used for welding since they have already been heating treated during manufacture through the tempering process.
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EN24 Round Bar Specification
Specification: 817M40 / EN-24
Grade: BS 970:1955
Round Bar Size: Diameter: 3-~800mm
Section: 3.0 to 12.0mm thickness
Billet Size: 1/2″ to 495mm Diameter
Finish: Cold (bright) drawn, centreless ground,smooth turned, Rough Turned, Bright, peeled, hot rolled, hot rolled annealed, slit rolled edge, Polish, Grinding, Centreless Ground & Black
Tolerance: K9, K10, K11, K12, H8, H9, H10, H11, H12, H13, or as per clients’ requirements
Surface: Polished, Bright, Cold Drawn, Hot Rolled Pickled, Sand Blasting Finished, Hairline
Condition: Hardened & Tempered, Annealed
Technique: en24 Hot Rolled, Cold Rolled, Cold Drawn, Forged Round Bar, Rods
Processing: Bar cutting to 650mm
Form: en24 Welding Rod, Round, Round Rod, Rings, Hollow, Rod, T-Bar, Channel Bar, Flat Bar, Square, Blocks, Precision Ground Bar, Triangle, Rectangle, Hex (A/F), Threaded, Ingot, I/H Bar, Half Round Bar, Profiles, Billet, Forging etc.
Chemical Composition Of EN24 Round Bar
|
Typical chemical composition of En24. |
|||||||
|
C |
SI |
MN |
S |
P |
Cr |
Mo |
Ni |
|
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 Of EN24 Round Bar
|
Conditions |
Annealed |
S |
T |
U |
V |
W |
X |
Y |
Z |
|
Ruling Section (mm) |
250 |
250 |
250 |
100 |
65 |
30 |
30 |
30 |
30 |
|
Tensile Strength (MPa) |
620 |
680/770 |
850/1000 |
930/1080 |
1000/1160 |
1080/1240 |
1235 (Min) |
1540 (Min) |
1540 (Min) |
|
Yield Stress (MPa) |
410 |
480 |
635 |
740 |
835 |
925 |
1005 |
1130 |
1130 |
|
Elongation (% Min) |
16 |
16 |
12 |
12 |
12 |
11 |
10 |
5 |
5 |
|
ISO V Impact (Joule) |
30 |
32 |
40.7 |
47.5 |
47.5 |
40.7 |
34 |
30 |
10 |
|
Hardness (Brinell) |
180/220 |
223/277 |
248/302 |
269/321 |
293/341 |
311/375 |
341/388 |
363/415 |
444 (Min) |
|
Proof Stress (0.2%) if required (MPa, Min) |
550 |
630 |
710 |
770 |
850 |
910 |
990 |
1235 |
|
Grade |
C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| SS 316 | 0.015 max | 2 max | 1.0 max | 0.045 max | 0.030 max | 16 – 18 | 2.0 – 3.0 | 11.0 – 14.0 | 67.845 min |
| SS 316L | 0.035 max | 2 max | 1.0 max | 0.045 max | 0.030 max | 16.0-18.0 | 2.0-3.0 | 10.0-14.0 | 68.89 min |
Equivalent Grades Of EN24 Round Bar
| BS 970 1991 | BS 970 1955 EN | AISI/SAE | Werkstoff |
| 817M40 | EN24 | 4340 | 1.6582 |
Heat Treatment:
Due to factors such as the shape and size of each steel component, the temperature of the heat treatment, including the rate of heating, cooling, and soaking time will vary depending on the steel component. It is also important to consider other factors during the heat treatment process, such as the type of furnace, the quenching medium, and the facilities for transferring the work piece. If you would like full guidance on the heat treatment of alloy steel, please do not hesitate to contact your heat treatment provider.
Hardening:
The EN24 is supplied and ready to be heat treated when it is received. In order to undergo a further heat treatment, EN24 that has already been annealed should be heated slowly to 830-850°C and after adequate soaking at this temperature, it should be quenched in oil. As soon as the tools have reached room temperature, they should be tempered. As a result of hardening in a neutral salt bath, there will be less chance of scaling and decarburization occurring. The temperature should be raised to 830-850°C and after equalization, the oil should be quenched.
Tempering:
In order to temper the steel correctly, it should be heated carefully to a suitable temperature selected by reference to a tempering chart or table, soaked for 2 hours per 25mm of ruling section, and then cool in the air. Tempering within the range of 250-375°C is not recommended since tempering within this range will result in a serious loss of impact value. In terms of tempering temperature, it is dependent on the required mechanical properties of the steel. This steel can achieve EN24U, EN24V, EN24W, EN24Y & EN24Z standards.
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:
In order to forge metal, it is necessary to preheat it carefully and then raise the temperature to 1000-1100°C. Forging the steel at a temperature below 850-1100°C is not recommended. After forging cool slowly preferably in a furnace.
Stress Relieving:
It is beneficial to relieve stress before hardening parts that have been heavily machined, ground, or otherwise subjected to cold work. You need to heat the food carefully to 650-670°C, and soak it well before cooling it down in the furnace or outside.
Normalizing:
- Nominal normalized temperature: 840-900°C.
2. Hold the temperature for several hours.
3. Cooling in the air.
Annealing:
It should be heated slowly to 840-860°C, soaked well, and then allowed to cool with a furnace to 580°C before being withdrawn.
Density:
Density – 7840 kg/m3
Machinability:
In the “T” condition, EN24 is a very popular grade of through-hardening alloy steel. This steel is readily machinable and available in several different grades.
Welding:
If the welding has been completed, allow the components to cool to 180°C before undergoing the post-weld heat treatment.
EN24 Round Bar Types
| EN-24 / 817M40 Polished Round Bar | EN-24 / 817M40 T-Bar | EN-24 / 817M40 Square Bar |
| EN-24 / 817M40 Triangle Bar | EN-24 / 817M40 Flat Bar | EN-24 / 817M40 Hex Bar |
| EN-24 / 817M40 Precision Ground Bar | EN-24 / 817M40 Hollow Bar | EN-24 / 817M40 Round Bar |
| EN-24 / 817M40 Threaded Bar | EN-24 / 817M40 Rods | EN-24 / 817M40 Half-Round Bar |
EN24 Round Bar Size Charts
| Type | SIZES (mm) | SIZES (Inches) | ISO Tolerance |
| Cold Drawn and Polish | 3.00 – 75.00 | 1/8″ – 3.00″ | h8-h9-h10-h11 |
| Cold Drawn and Ground | 10.00 – 75.00 | 5/6″ – 2.50″ | h8-h9-h10-h11 |
| Peeled and Polished | 40.00 – 150.00 | 1.50″ – 6.00″ | h11, h11-DIN 1013 |
| Peeled and Ground | 20.00 – 50.00 | 3/4″ – 2.00″ | h9-h10-h11 |
| Standard lengths of EN24 Bars 2000 mm up to 6000 mm are available. Cut to size on request (tolerance +2/-0 mm). | |||
| 5.0 | 45.0 |
| 6.0 | 50.0 |
| 7.0 | 55.0 |
| 8.0 | 60.0 |
| 9.0 | 65.0 |
| 10.0 | 70.0 |
| 12.0 | 75.0 |
| 16.0 | 80.0 |
| 20.0 | 90.0 |
| 25.0 | 100.0 |
| 30.0 | 130.0 |
| 35.0 | 160.0 |
| 40.0 | 200.0 |
EN24 Round Bar Surface Finish
| CD | Cold drawn | P | Polished |
| BD | Bright drawn | SRE | Slit rolled edge |
| CG | Centreless ground | HF | Hot finished |
| CF | Cold finished | HRAP | Hot rolled annealed and pickled |
| P&T | Peeled and turned | RT | Rough-turned/peeled |
| ST | Smooth turned | PR | Peeled and reeled |
EN24 Round Bar Condition
| H&T | Hardened and tempered. |
| ANN | Annealed |
| PH | Precipitation hardened. |
Our Size Range Of EN24 Round Bar
16mm, 18mm, 20mm, 22mm, 23.5mm, 24mm, 25mm, 26mm, 27mm, 28mm, 30mm, 32mm, 34mm, 35mm, 36mm, 37mm, 38mm, 40mm, 42mm, 45mm, 46.5mm, 47mm, 50mm, 51mm,53mm, 56mm, 60mm, 63mm, 65mm, 70mm, 75mm, 78mm, 80mm, 85mm, 90mm, 95mm, 100mm, 105mm, 110mm, 115mm, 120mm, 125mm, 130mm.
Grades We Manufacture in addition to EN24 Round Bar
MS, SAE 1018, IS 2062, A-105, SAE 1008, SAE 1010, SAE 1015, C15, C18, C20, 1020, C22, 1022, C25, 1025, C30, 1030, C35, 1035, 35C8, S35C, C40, 1040, C45, 45C8, 1045, CK45, C50, 1050, C55, 55C8, 1055, C60, 1060, C70, 41Cr4, 40Cr4, 40Cr1, En18, En18D, SAE 1541, SAE 1536, 37Mn2, 37C15, En15, SAE 1141, LF2, EN19, SAE 4140, 42CrMo4, EN24, EN31, SAE 52100, 20MnCr5, 8620, EN1A, En8, 4140D, EN9, ST 52.3, EN42, En353, SS 410, SS 202, SS 304, SS 316 and other grades as per customer requirement.
Working and Heat Treatment:
- Forging within the temperature range of 1100⁰/850⁰ Celsius
- After reaching 7600 Celsius, anneal at that temperature for four hours, then soak for four hours
- Normalizing is not applicable
- A temperature of 8200/850 Celsius is used for oil quenching after soaking
Certifications for EN24 Round Bars
Our company is ISO 9001 certified. Additionally, we are licensed by the Bureau of Indian Standards to use steel rounds in various structural, bright bar, and other engineering applications. Additionally, we are BIS-certified to manufacture boiler rounds
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Us $600-1500 / ton ( fob price) - Filesteel alloy steel round bar
Us $700-1500 / ton ( fob price) - Scm420 alloy steel round bar
Us $500-1500 / ton ( fob price) - Umco50 round bar/rod/forgings/cobalt based alloy
Us $40-55 / kilogram ( fob price)
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EN24 Round Bar Applications
- Pumps/Electric Motor Industry
- Automobile Industry
- Defence Sector
- Railways
- Health & Sports
- Agriculture
- Oil & Gas
- Textile Industry
- Food Processing Industry
- Houses & Fittings
- Mining
- Miscellaneous
EN24 / EN24T / 817M40 applications:
Gears, pinions, shafts, spindles, and the like were initially designed to be used with EN24 in the motor vehicle and machine tool industries. Later, its uses expanded. It can produce parts for locomotives, cranes, rolling mills, coal-cutting machinery, etc., where strength and fatigue resistance is called for. As well as die casting and hot metal working, EN24 and EN24T can be used for pass bolsters, racks and pinions, angle pins, hot aluminum stamping dies, steel stamping beds, lower temperature nut, bolt, and rivet heading dies, and large section drop forging dies. This material is widely used in the plastic and rubber molding industries for molds (particularly rubber molds), hob retaining rings, patens, rings for built-up molds, and stop pins for molds. EN24 is usually supplied hardened and tempered to ‘T’ condition for molds. EN24T should be annealed and heat treated to achieve a higher hardness.
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