AISI 1139 Carbon Steel
Products Description UNS G11390, also known as AISI 1139 carbon steel, is a remarkable material with a wide range of applications and outstanding properties. This carbon steel grade is highly regarded in the industrial sector for its exceptional performance and reliability. One of the key...
Description
Products Description
AISI 1139 Carbon steel Chemical composition and Mechanical properties
| C | 0.35-0.43 |
| Mn | 1.35-1.65 |
| P | 0.04 (max) |
| S | 0.138-0.20 |
Mechanical Properties
| Properties | Conditions | ||
|---|---|---|---|
| T (°C) | Treatment | ||
| Density (×1000 kg/m3) | 7.7-8.03 | 25 | |
| Poisson's Ratio | 0.27-0.30 | 25 | |
| Elastic Modulus (GPa) | 190-210 | 25 | |
| Tensile Strength (Mpa) | 1158 | 25 | oil quenched, fine grained, tempered at 425°C |
| Yield Strength (Mpa) | 1034 | ||
| Elongation (%) | 15 | ||
| Reduction in Area (%) | 53 | ||
| Hardness (HB) | 335 | 25 | oil quenched, fine grained, tempered at 425°C |
Another advantage of UNS G11390 is its relatively good corrosion resistance. While it may not be as corrosion-resistant as some stainless steels, it still provides a certain level of protection against mild corrosive environments. This makes it suitable for use in applications where exposure to moisture or certain chemicals is expected.
UNS G11390 is also known for its good weldability. It can be easily joined using various welding methods, allowing for the fabrication of complex structures and assemblies. However, proper welding procedures and techniques should be followed to ensure strong and reliable welds.
The availability of UNS G11390 in different forms and sizes further enhances its versatility. It can be supplied as bars, tubes, sheets, and other shapes, allowing for flexibility in design and manufacturing.
Furthermore, UNS G11390 can be heat treated to improve its mechanical properties. Heat treatment processes such as quenching and tempering can increase its hardness, strength, and toughness, or improve its ductility and machinability.
In conclusion, UNS G11390 AISI 1139 carbon steel is a high-performance material with excellent machinability, strength, toughness, dimensional stability, corrosion resistance, weldability, and heat treatability. Its versatility and reliability make it a popular choice for a wide range of applications in various industries. Whether for mechanical components, structural elements, or other demanding applications, UNS G11390 offers outstanding performance and value.
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