Ojas Pipes and Tubes, located in Kolkata, India, has earned a solid reputation as a reliable manufacturer and supplier of top-quality 20MnCr5 Round Bars, designed to meet a wide range of engineering and industrial needs. Our 20MnCr5 bars are well-known for their outstanding case-hardening capabilities, precise dimensions, and remarkable mechanical strength. Crafted with cutting-edge techniques and rigorous quality checks, these alloy steel bars are perfect for heavy-duty applications. Committed to timely deliveries and tailored solutions, Ojas Pipes and Tubes guarantees that our clients receive products that adhere to international standards, making us a go-to choice for OEMs, fabricators, and machine part manufacturers both in India and overseas.
20MnCr5 Round Bars are primarily composed of carbon (0.17–0.22%), manganese (1.10–1.40%), and chromium (1.00–1.30%), along with small amounts of phosphorus and sulfur. This low-carbon alloy steel boasts excellent hardenability, wear resistance, and toughness after heat treatment. The tensile strength typically falls between 800–1100 MPa, with a yield strength around 450 MPa. It strikes a great balance between machinability and core strength, making it perfect for surface hardening processes like carburizing. These bars also maintain consistent mechanical properties across different temperatures and stress conditions.
|
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 |
Yes, 20MnCr5 Round Bars can be used for underground applications due to their high strength and durability.
Yes, 20MnCr5 Round Bars may require corrosion protection coatings for enhanced durability in harsh environments.
Choose 20MnCr5 Round Bars based on required strength, wear resistance, and application-specific environmental conditions.
20MnCr5 Round Bars find extensive use in the automotive and mechanical engineering industries for crafting high-performance components such as gears, shafts, crankshafts, pinions, and camshafts. Their exceptional case-hardening properties make them perfect for creating wear-resistant surfaces while keeping a tough core. These bars are also employed in making fasteners, spindles, and bushings for agricultural and industrial machinery. Thanks to their dependable strength and hardness balance, they are the preferred choice for applications that demand fatigue resistance, dimensional stability, and a long service life in dynamic and impact-prone environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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