Maduka Metals, a reputable manufacturer and supplier located in Abuja, Nigeria, focuses on delivering top-notch **C45 Round Bars** that are built for outstanding strength, toughness, and machinability. The company is committed to crafting steel products that adhere to international engineering standards, guaranteeing exceptional performance across a variety of industrial applications. The **C45 Round Bar** is a medium carbon steel grade celebrated for its impressive tensile strength and wear resistance. Maduka Metals caters to sectors like automotive, mechanical engineering, construction, and manufacturing, providing materials that blend durability, precision, and reliability for critical uses.
Typically, the **C45 Round Bar** contains 0.42–0.50% carbon, 0.50–0.80% manganese, along with trace elements of silicon, phosphorus, and sulfur. This specific composition yields a tensile strength ranging from 570–700 MPa and a yield strength of about 330 MPa in its normalized state. After undergoing heat treatment (quenching and tempering), the hardness can soar up to 55 HRC, striking a perfect balance between strength and toughness. C45 steel is known for its excellent machinability and moderate weldability, making it a great choice for manufacturing parts that need high surface hardness and core ductility.
|
Variant |
Cast |
Weldability |
C % |
Si % |
Mn % |
P % |
S % |
Cr % |
Ni % |
Mo % |
V % |
Ti % |
Cu % |
Al % |
DI % |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
SB8673 |
CC |
CEV 0.71max |
Min |
0.46 |
0.15 |
0.70 |
– |
0.020 |
0.25 |
0.10 |
– |
– |
– |
– |
0.020 |
1.70 |
|
Pcm 0.55max |
Max |
0.49 |
0.35 |
0.80 |
0.020 |
0.035 |
0.30 |
0.20 |
– |
– |
– |
0.25 |
0.040 |
2.00 |
||
|
SB1672 |
CC |
CEV 0.72max |
Min |
0.42 |
0.10 |
0.50 |
– |
0.020 |
– |
– |
– |
– |
– |
– |
– |
1.10 |
|
Pcm 0.55max |
Max |
0.50 |
0.40 |
0.90 |
0.045 |
0.045 |
0.40 |
0.40 |
0.10 |
– |
– |
– |
– |
1.80 |
||
|
SB1671 |
CC |
CEV 0.58max |
Min |
0.42 |
0.15 |
0.50 |
– |
0.035 |
– |
– |
– |
– |
– |
– |
– |
1.20 |
|
Pcm 0.51max |
Max |
0.50 |
0.40 |
0.80 |
0.045 |
0.050 |
– |
– |
– |
– |
– |
– |
– |
1.60 |
||
|
5081, Imatra 4 M |
CC |
CEV 0.72max |
Min |
0.42 |
0.10 |
0.50 |
– |
0.020 |
– |
– |
– |
– |
– |
– |
– |
1.10 |
|
Pcm 0.55max |
Max |
0.50 |
0.40 |
0.90 |
0.030 |
0.035 |
0.40 |
0.40 |
0.10 |
– |
– |
– |
– |
1.80 |
||
|
5155 |
CC |
CEV 0.72max |
Min |
0.44 |
0.10 |
0.50 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
1.10 |
|
Pcm 0.55max |
Max |
0.49 |
0.40 |
0.80 |
0.030 |
0.025 |
0.40 |
0.40 |
0.10 |
– |
– |
– |
– |
1.80 |
||
|
047A |
IC |
CEV 0.76max |
Min |
0.46 |
0.15 |
0.50 |
– |
0.020 |
– |
– |
– |
– |
– |
– |
0.015 |
– |
|
Pcm 0.6max |
Max |
0.50 |
0.40 |
0.80 |
0.030 |
0.030 |
0.25 |
0.25 |
0.10 |
0.100 |
0.005 |
0.25 |
0.030 |
– |
||
|
C45 EN 10083-2:2006 |
Std |
CEV 0.68max |
Min |
0.42 |
– |
0.50 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
|
Pcm 0.55max |
Max |
0.50 |
0.40 |
0.80 |
0.045 |
0.045 |
0.40 |
0.40 |
– |
– |
– |
– |
– |
– |
||
|
C45R EN10083-2:2006 |
Std |
CEV 0.65max |
Min |
0.42 |
– |
0.50 |
– |
0.020 |
– |
– |
– |
– |
– |
– |
– |
– |
|
Pcm 0.53max |
Max |
0.50 |
0.40 |
0.80 |
0.030 |
0.040 |
0.40 |
0.40 |
– |
– |
– |
– |
– |
– |
||
|
C45E EN 10083-2:2006 |
Std |
CEV 0.71max |
Min |
0.42 |
– |
0.50 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
– |
|
Pcm 0.55max |
Max |
0.50 |
0.40 |
0.80 |
0.030 |
0.035 |
0.40 |
0.10 |
– |
– |
– |
– |
– |
– |
|
Diameter d (mm) |
Thickness t (mm) |
0.2 % proof stress (N/mm2) |
Tensile strength (N/mm2) |
Elongation A5 (%) |
Reduction Z (%) |
|
<16 |
<8 |
min. 490 |
700-850 |
min. 14 |
min. 35 |
|
<17-40 |
<8<=20 |
min. 430 |
650-800 |
min. 16 |
min. 40 |
|
<41-100 |
<20<=60 |
min. 370 |
630-780 |
min. 17 |
min. 45 |
USA | Germany | China | Japan | France | England | Italy | Poland | ISO | Austria | Sweden | Spain |
ASTM/AISI/ UNS/SAE | DIN,WN-r | GB | JIS | AFNOR | BS | UNI | PN | ISO | ONORM | SS | UNE |
1045 G10450 | C45/Ck45/1.1191/C45 | 45# | S45C | C45E Ck45 | C40E 080M466 | 1660 |
Yes, C45 Round Bar can be recycled and repurposed without losing its essential properties.
C45 Round Bar does not have a specific pressure rating, as it is primarily used for mechanical and structural applications, not pressure-bearing components.
Yes, C45 Round Bar may require corrosion protection coatings when exposed to harsh environmental conditions to prevent rust and degradation.
The **C45 Round Bar** finds extensive use in creating shafts, axles, gears, bolts, studs, crankshafts, and couplings. Its unique combination of strength and wear resistance makes it perfect for components that face mechanical stress and impact. In the automotive and machinery industries, it’s utilized for crafting drive parts and precision tools. Additionally, it plays a vital role in construction and fabrication, where it’s used to make high-strength fasteners and fittings. Maduka Metals guarantees that each C45 round bar delivers consistent performance, precise dimensions, and long-lasting reliability for even the most demanding industrial applications.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Maduka Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Abuja, Nigeria
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