Carbon Steel EN-24 Bars are renowned for their high strength and remarkable toughness, making them a go-to choice in various demanding applications. Shalan Steel, a trusted manufacturer and supplier located in Kuala Lumpur, Malaysia, provides EN-24 bars in round, square, and flat shapes, perfect for engineering and industrial needs. These bars are designed for components that require exceptional tensile strength and durability. With a commitment to precision machining, consistent quality, and dependable delivery, Shalan Steel caters to customers in the automotive, aerospace, defense, and heavy machinery sectors throughout Malaysia and Southeast Asia.
Known as 817M40, EN-24 is a nickel-chromium-molybdenum alloy steel that boasts impressive mechanical properties. It typically offers tensile strength ranging from 850 to 1000 MPa and yield strength between 680 and 880 MPa, depending on the heat treatment process. The usual chemical makeup includes carbon (0.36–0.44%), along with manganese, chromium, nickel, and molybdenum. EN-24 bars are often supplied in a hardened and tempered state, ensuring excellent wear resistance, toughness, and machinability. For even greater surface durability, these bars can undergo additional hardening through case hardening or nitriding.
| Grade | EN24 |
|---|---|
| Specification | BS970 1.0904 55Si7 55S6 55Si2Mn ASTM 9255 |
| Round bar size | Diameter: 3-~800mm |
| Hex Bar size | 2-100mm A/F |
| Flat bar size | Thickness: 2 -100mm |
| Width: 10 to 500mm | |
| Square bar size | 4 to 100mm |
| Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Section | 3.0 to 12.0mm thickness |
| Channel Bar | 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness |
| Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| Billet Size | 1/2″ to 495mm Diameter |
| Rectangles Size | 33 x 30mm to 295 x 1066mm |
| Finish | Cold (bright) drawn, centreless ground,smooth turned, peeled, slit rolled edge, hot rolled, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| Condition | Hardened & tempered, annealed |
| Technique | EN45 Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Processing | Bar cutting to 650mm |
| Form | EN45 Welding Rod, Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
| Element | En42J |
| C | 0.75 – 0.90% |
| Mn | 0.50 – 0.90% |
| Si | 0/1 – 0.35 |
| S | 0.04% Max |
| P | 0.04% Max |
817M40T / EN24T Steel Mechanical Properties | ||||||
|---|---|---|---|---|---|---|
Size | Tensile | Yield | Elongation | Impact | Impact | Hardness |
63 to 150 | 850-1000 | 680 Min | 13% | 54 | 50 | 248/302 |
150 to 250 | 850-1000 | 654 Min | 13% | 40 | 35 | 248/302 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
These Carbon Steel EN-24 Bars find extensive use in high-stress engineering applications, including automotive shafts, axles, gears, connecting rods, crankshafts, bolts, and heavy-duty spindles. Their outstanding fatigue resistance and impact strength make them ideal for critical components like aircraft landing gear, mining equipment, and marine parts. Additionally, EN-24 bars are utilized in toolmaking and structural applications where high load-bearing capacity and toughness are crucial. Their ability to maintain strength under dynamic and heavy-load conditions makes them a preferred option for performance-critical mechanical parts in challenging environments.
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 |
EN-24 Carbon Steel Bars are used intensively in areas requiring wear-resistant, high-strength material. They possess superior toughness and endurance and therefore get used in automobile, aerospace, and heavy engineering. Their usage is in the form of high-stress axles, gears, shafts, crankshafts, spindles, bolts, machine components, etc. EN-24 bars in the aerospace industry are employed for structural components as well as landing gear. In rail and automotive, they assist in the production of axles and transmission components. They are also vital in oil & gas, construction, and defense industries where high-performance steel is required to support stringent operating conditions.
Shalan Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Kuala lumpur, Malaysia.
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