Chuck Metals, located in Singapore on Pulau Ujong, has earned a solid reputation as a reliable manufacturer and supplier of high-performance steel products, particularly Carbon Steel EN-44 Bars. These bars are celebrated for their impressive blend of strength, toughness, and resistance to fatigue, all crafted to meet the rigorous demands of various industries. At Chuck Metals, advanced manufacturing techniques and stringent quality controls are employed to guarantee consistent mechanical properties and precise dimensions. This makes EN-44 Bars perfect for a variety of heavy-duty applications in sectors like automotive, construction, and engineering. With a strong focus on durability and customer satisfaction, Chuck Metals proudly supplies EN-44 Bars that are trusted by clients throughout Southeast Asia and beyond.
Carbon Steel EN-44 Bars are medium-carbon alloy steels, primarily made up of about 0.40–0.50% carbon, along with manganese, silicon, and chromium to boost their strength and hardenability. These bars typically exhibit a tensile strength ranging from 600 to 800 MPa, showcasing excellent impact resistance and fatigue performance. EN-44 is particularly well-suited for heat treatment processes like quenching and tempering, which results in a tough core and a hard surface. These characteristics make EN-44 Bars ideal for applications that involve repeated loading and dynamic stress. Manufactured in accordance with BS 970 and other global standards, they ensure long-lasting structural integrity.
| Specifications | ASTM B446 / ASTM SB446 |
| size | 2-100mm A/F |
|---|---|
| Square bar size | 4 to 100mm |
| Flat bar size | Thickness: 2 -100mm Width: 10 to 500mm |
| Round bar size | Diameter: 3-~800mm |
| Rectangles Size | 33 x 30mm to 295 x 1066mm |
| 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 |
| Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, 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 | Hot Rolled Pickled, Bright, Sand Blasting Finished, Cold Drawn, Hairline, Polished |
| Condition | Hardened & tempered, annealed |
| Technique | Cold Drawn, Hot Rolled, Forged Round Bar,Cold Rolled, Rod |
| Processing | Bar cutting to 650mm |
| Form | Round, Welding Rod, T-Bar, Rod, Precision Ground Bar, Channel Bar, Square, Flat Bar, Blocks, Round Rod, Hollow, Rings, Rectangle, Hex (A/F), Triangle, Threaded, Profiles, Billet, Ingot, I/H Bar, Half Round Bar, Forging etc. |
| Grade | ||||||
| C% | Si% | Mn% | Cr% | Mo% | W% | |
| EN-1A | 0.007 TO 0.15 | 0.10 | 0.80 TO 1.00 | S | P | – |
| 0.20 TO 0.30 | 0.70 MAX | |||||
| EN-8 | 0.35 TO 0.45 | 0.05 TO 0.30 | 0.60 TO 1.00 | S | P | – |
| 0.06 MAX | 0.06 MAX | |||||
| EN-9 | 0.50 TO 0.60 | 0.05 TO 0.30 | 0.5 TO 0.80 | – | – | – |
| EN-19(V 320) | 0.35 TO 0.45 | 0.10 TO 0.30 | 0.5 TO 0.80 | 0.90 TO 1.40 | 0.20 TO 0.40 | |
| EN-24(V 130) | 0.35 TO 0.45 | 0.10 TO 0.35 | 0.45 TO 0.70 | 0.90 TO 1.40 | 0.20 TO 0.35 | NI |
| 1.3 TO 1.8 | ||||||
| EN-31 R-100 | 0.90 TO 1.20 | 0.10 TO 0.35 | 0.30 TO 0.75 | 1.00 TO 1.60 | – | – |
| EN-36C E-200 | 0.12 TO 0.18 | 0.10 TO 0.35 | 0.30 TO 0.60 | 0.60 TO 1.10 | – | NI |
| 3.0 TO 3.75 | ||||||
| EN-42 | 0.70 TO 0.85 | 0.10 TO 0.40 | 0.55 TO 0.75 | – | – | – |
| EN-44 | 0.90 TO 1.20 | 0.30 | 0.45 TO 0.70 | – | – | – |
| EN-45 F-110 | 50 TO 0.60 | 1.5 TO 2.0 | 0.70 TO 1.00 | – | – | – |
| EN-351 | 0.10 TO 0.20 | 0.35 | 0.60 TO 1.00 | 0.40 to 0.80 | 0.08 to 0.10 | NI |
| 0.60 TO 1.00 | ||||||
| EN-353 | 0.10 TO 0.20 | 0.35 | 0.50 TO 1.00 | 0.75 TO 1.25 | 0.08 to o.15 | NI |
| 1.00 TO 1.50 |
| Grade | HEAT TREATMENT | CORRESPONDING SPECIFICATION | |||||
| Hardening Temperature | Quenching Medium | Tempering Temperature | Brinell Rock well hardness | JAPAN JIS | AISI | POLDI THREAD | |
| EN-1A | – | – | – | – | – | – | – |
| EN-8 | 750-900 | OIL | 150-200 | ||||
| EN-9 | 850-900 | OIL | 200-250 | 55-60 | |||
| EN-19 (V 320) | 900-950 | OIL | 200-225 | 45-55 | SCM 4 | 4140 | |
| EN-24 (V 130) | 830-860 | OIL | 540-680 | 45-55 | SNCM 8 | 4340 | |
| EN-31 R-100 | 820-860 | OIL | 180-225 | 59-65 | |||
| EN-36C E-200 | 780-860 | OIL | 170-210 | 61-63 | SNC 22 | 3415 | |
| EN-42 | 600-700 | DIRECT HARDENING | 40-45 | ||||
| EN-44 | 650-750 | OIL | 150 | 45-50 | |||
| EN-45 | 830-860 | OIL | 470-520 | 50-55 | 9255 | ||
| EN-351 | 850-860 | OIL | 175-200 | 62-64 | |||
| EN-353 | 840-870 | OIL | 150-200 | 62-64 | |||
| Standard | CS EN-9 |
| UNS | – |
| WERKSTOFF NR. | CK55 |
| BS | 070M55 |
| IS | C55 |
| JIS | – |
| EN | EN9 |
| SAE/AISI | 1055 |
Yes, Carbon Steel EN-44 Bars can be heat-treated to improve mechanical properties such as strength and hardness. Common treatments include annealing, quenching, and tempering, depending on application requirements.
Carbon Steel EN-44 Bars are used in manufacturing automotive components, tools, and industrial equipment due to their excellent toughness, wear resistance, and high tensile strength, making them suitable for heavy-duty applications.
Carbon Steel EN-44 Bar offers high tensile strength (~700-850 MPa), excellent toughness, good wear resistance, moderate ductility, and hardness (~230-290 HB), making it suitable for heavy-duty applications.
In various applications that demand high strength, toughness, and fatigue resistance, Carbon Steel EN-44 Bars are widely utilized. In the automotive sector, they are used to create components like connecting rods, crankshafts, and suspension parts. The construction industry relies on them for heavy-duty fasteners, anchor bolts, and structural supports. In mechanical and general engineering, EN-44 Bars are perfect for gears, levers, and shafts that face high impact or dynamic loading. Their capacity for heat treatment makes them highly versatile for precision applications. Chuck Metals’ EN-44 Bars promise reliable performance and durability, making them a go-to choice for many industries.






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Chuck Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Singapore, Singapore
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