SAE/AISI 1551 Steel (UNS G15510) – Composition, Properties and Uses
Regarding industrial-grade steel, SAE/AISI 1551 is a low-alloy steel that stands out for its exceptional properties. Widely employed across various industries, this alloy is prized for its resistance to corrosion, impressive heat resistance, and ease of machinability and welding. Engineers have relied on UNS G15510, also known as SAE/AISI 1551 Steel or simply AISI 1551, for decades, recognizing it as a reliable performer. This alloy, primarily composed of iron, carbon, and manganese, also incorporates trace amounts of other elements, contributing to its distinctive mechanical properties. Notably, SAE/AISI 1551 Steel excels in toughness, ductility, and wear resistance, making it an ideal choice for applications demanding durability in challenging or corrosive environments. Whether you’re involved in manufacturing, construction, or infrastructure projects, SAE/AISI 1551 Steel is a worthwhile consideration. Its tried-and-true performance and its unique combination of properties position it as a reliable material for various industrial applications. So, if you’re searching for robust materials to meet the demands of your projects, SAE/AISI 1551 Steel is worth exploring.
What Forms of AISI 1526 is Available at Piping Mart?
- Nut
- Bar
- Bolt
- Pipe
- Screw
- Tubing
- Valves
- Washers
- Flanges
- Fasteners
- Electrodes
- Stud Bolts
- Sheet Plates
- Pipe Fittings
- Forged Fitting
- Instrumentation Fittings
AISI 1551 Composition
AISI 1551 steel boasts a composition that includes 0.45-0.56% carbon, providing strength, and 0.85-1.15% manganese for enhanced toughness. With a maximum phosphorus content of 0.04% and sulfur capped at 0.05%, this alloy ensures excellent machinability and weldability. Its precise composition makes AISI 1551 a reliable choice for diverse industrial applications.
| Element | Weight % |
| C | 0.45-0.56 |
| Mn | 0.85-1.15 |
| P | 0.04 (max) |
| S | 0.05 (max) |
AISI 1551 Mechanical Properties
AISI 1551 exhibits impressive mechanical properties, featuring a density range of 7.7-8.03. It demonstrates resilience with a Poisson’s ratio between 0.27-0.30 and an elastic modulus spanning 190-210 GPa. Tensile strength at 1158 MPa, yield strength of 1034 MPa, and 15% elongation underscore its robustness, making AISI 1551 suitable for demanding applications.
| 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 |
AISI 1551 Physical Properties
AISI 1551 exhibits notable physical properties. It has a Thermal Expansion range of 16-17 × 10^-6/K, a Thermal Conductivity of 16-16 W/m.K, and a Specific heat of 500 J/kg.K. The Density of AISI 1551 is approximately 8000 kg/m3, with a resistivity of 0.7 Ohm.mm2/m. Additionally, the alloy features a melting temperature between 1370-1400 °C and a service temperature range of 0-500 °C, making it versatile for various temperature conditions.
| Quantity | Value | Unit |
|---|---|---|
| Thermal expansion | 16 – 17 | e-6/K |
| Thermal conductivity | 16 – 16 | W/m.K |
| Specific heat | 500 – 500 | J/kg.K |
| Melting temperature | 1370 – 1400 | °C |
| Service temperature | 0 – 500 | °C |
| Density | 8000 – 8000 | kg/m3 |
| Resistivity | 0.7 – 0.7 | Ohm.mm2/m |
AISI 1551 Thermal Properties
AISI 1551 exhibits impressive thermal properties, featuring a thermal conductivity of 42.7 W/m-K and a specific heat of 477 J/kg-K. These characteristics underscore its efficient heat conduction and ability to store heat energy per unit mass, making AISI 1551 well-suited for applications where optimal thermal performance is critical.
| Properties | Conditions | ||
|---|---|---|---|
| T (°C) | Treatment | ||
| Thermal Conductivity (W/m-K) | 42.7 | 100 | |
| Specific Heat (J/kg-K) | 477 | 50-100 | |
AISI 1551 Corrosion Resistance
SAE/AISI 1551 steel stands out due to its exceptional corrosion resistance, a pivotal quality for applications involving exposure to corrosive chemicals or environments. Its ability to withstand outdoor conditions without rusting makes it a reliable choice for various settings. The corrosion-resistant nature also deems it suitable for applications in food processing equipment, marine environments, and diverse industrial uses, further emphasizing its versatility and durability.
AISI 1551 Uses
SAE/AISI 1551, classified as medium carbon steel, is widely recognized for its versatility in manufacturing due to its remarkable hardening and tempering capabilities. This quality renders it an exceptionally adaptable material suitable for defense, medical, and industrial applications. Notably, it has found utility in crafting gun racks and rifle barrels, showcasing its resilience and reliability in demanding environments. In the medical realm, SAE/AISI 1551 is employed in the production of orthopedic screws, attesting to its precision and durability. Its strength and cost-effectiveness position it as an ideal choice for projects where robustness and environmental considerations are paramount.
AISI 1551 Uses in Industries
- Construction
- Automotive
- Oil and Gas
- Machinery
- Aerospace
AISI 1551 Heat Resistance
SAE/AISI 1551 steel also boasts excellent heat resistance, making it an ideal choice for uses where high temperatures are expected. This makes it suitable for use in furnaces, boilers and other high-temperature applications such as automotive exhaust systems and engine components. Its heat-resistant properties also make it a great choice for cookware such as frying pans and woks, as well as stovetop grills or griddles.
AISI 1551 Heat Treatment
SAE/AISI 1551 steel also responds well to heat treatment, allowing it to be hardened or tempered as needed for any application. This allows the material to be tailored to meet the needs of a wide range of projects and makes it an incredibly versatile material for use in many different industries. Additionally, its ability to respond well to heat treatment means that we can also adjust the hardness levels depending on the requirements of each project – making this an incredibly useful material overall!
AISI 1551 Machining & Welding
Finally, SAE/AISI 1551 steel is relatively easy to machine, and weld compared to other materials – which makes it perfect for fabrication projects where precise cuts are required, or welding is necessary. Its ease of machining also means that parts made from this material can be produced quickly and efficiently with minimal wasted time or effort – making this an ideal choice for those looking for a cost-effective solution when producing parts from metal!
Conclusion
In short, there are many advantages associated with using SAE/AISI 1551 steel – from its excellent corrosion resistance and heat resistance qualities to its ability to respond well to heat treatment and being relatively easy to machine & weld compared with other materials available on the market today! All these benefits combine together to make this an incredibly versatile option that is suitable for many different types of industries or applications.
A passionate metal industry expert and blogger. With over 5 years of experience in the field, Palak brings a wealth of knowledge and insight to her writing. Whether discussing the latest trends in the metal industry or sharing tips, she is dedicated to helping others succeed in the metal industry.
