George Metals, located in Houston, USA, stands out as a top-notch manufacturer and supplier of high-quality 20MnCr5 Round Bars. These bars are celebrated for their remarkable mechanical properties and durability. Crafted to meet rigorous industrial standards, they provide excellent wear resistance and machinability, making them perfect for precision engineering tasks. With a steadfast dedication to quality and innovation, George Metals caters to a variety of industries, offering customized solutions that guarantee reliability and long-lasting performance.
20MnCr5 Round Bars are made from low-alloy steel, containing about 1% chromium, 0.17-0.22% carbon, and trace amounts of manganese (1.1-1.4%) and silicon (up to 0.4%). These components contribute to their outstanding hardenability, wear resistance, and toughness. After undergoing carburizing, these bars can reach surface hardness levels of around 60 HRC while maintaining a robust core for shock absorption. With a tensile strength of roughly 600-800 MPa and good elongation properties, 20MnCr5 Round Bars are perfect for applications that require high fatigue strength.
|
Element |
Content |
|---|---|
|
Carbon, C |
0.310 – 0.380 % |
|
Iron, Fe |
98.63 – 99.09 % |
|
Manganese, Mn |
0.60 – 0.90 % |
|
Phosphorous, P |
0.040 % |
|
Sulfur, S |
0.050 % |
|
Properties |
Metric |
Imperial |
|---|---|---|
|
Tensile strength, ultimate |
585 MPa |
84800 psi |
|
Tensile strength, yield |
370 MPa |
53700 psi |
|
Modulus of elasticity |
190-210 GPa |
29700-30458 ksi |
|
Bulk modulus (typical for steel) |
140 GPa |
20300 ksi |
|
Shear modulus (typical for steel) |
80 GPa |
11600 ksi |
|
Poissons ratio |
0.27-0.30 |
0.27-0.30 |
|
Elongation at break (in 50 mm) |
30% |
30% |
|
Reduction of area |
53% |
53% |
|
Hardness, Brinell |
183 |
183 |
|
Hardness, Knoop (converted from Brinell hardness) |
204 |
204 |
|
Hardness, Rockwell B (converted from Brinell hardness) |
89 |
89 |
|
Hardness, Vickers (converted from Brinell hardness) |
192 |
192 |
|
Machinability (based on AISI 1212 steel. as 100 machinability) |
65 |
65 |
| EN Name | EN Number | DIN | JIS | UNI | BS |
|---|---|---|---|---|---|
| C35 | 1.0501 | C35, CM35 | S35C | C35 | 970 070M36 |
20MnCr5 Round Bars find extensive use in industries that prioritize high wear resistance and strength. They are particularly suited for manufacturing gears, shafts, crankshafts, and camshafts in the automotive and machinery sectors. Additionally, these bars excel in heavy-duty applications, such as hydraulic systems and industrial tools, thanks to their excellent machinability and fatigue strength. Their versatility in heat treatment processes also makes them ideal for creating components that need a durable, hardened surface along with a tough core.






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