253-MA fasteners are meticulously crafted from an alloy known as 253-MA, which is a high-temperature austenitic stainless steel. This alloy exhibits exceptional resistance to oxidation and high-temperature corrosion, making it suitable for applications in furnace components, heat exchangers, and other high-temperature industrial environments. 253-MA offers superior creep strength and structural stability at elevated temperatures up to 2000°F (1093°C), making it an ideal choice for demanding high-temperature applications.
253-MA Fasteners offer versatility in shapes and sizes, ranging from bolts, screws, nuts, washers to studs. Their utility extends across various industrial applications, serving multiple functions such as joining components, sealing against gas or liquid pressure, securing items against vibration, and ensuring a robust connection without compromising structural integrity. Their adaptability and reliability make them indispensable in industries requiring dependable fastening solutions.
Furthermore, 253-MA Fasteners find utility in applications where high-temperature resistance and corrosion resistance are paramount, such as in petrochemical plants, power generation facilities, and automotive exhaust systems. Regardless of the application, 253-MA fasteners offer exceptional mechanical properties and corrosion resistance, ensuring reliability and durability in demanding environments.
Standard 253-MA Fasteners specifications as per Fasteners manufacturers.
| Material | 253-MA |
| Specification | IS/BS/ASTM |
| Standards | ASTM A193 |
| Size | 3 mm to 200 mm |
| Length | M02 to M30 |
Each 253-MA Fasteners have unique design each of them are used in specific applications. Some of them are mentioned below.
Note that this chart includes only some of the most common sizes of 253-MA Bolt. There are many other sizes available as well, and some applications may require custom sizes or special configurations.
Chromium (Cr)
20.0 - 22.0%
Nickel (Ni)
10.0 - 12.0%
Silicon (Si)
1.40 - 2.00%
Manganese (Mn)
≤0.80%
Carbon (C)
≤0.05%
Phosphorus (P)
≤0.040%
Sulfur (S)
≤0.030%
Nitrogen (N)
0.10 - 0.20%
Copper (Cu)
0.10 - 0.70%
Silicon (Si)
1.40 - 2.00%
Aluminum (Al)
0.10 - 0.30%
Cerium (Ce)
0.03 - 0.08%
| Density | 7.8 g/cm³ |
| Melting Point | 1371 - 1421°C (2500 - 2590°F) |
| Tensile Strength | ≥515 MPa (≥74.7 ksi) |
| Yield Strength (0.2%Offset) | ≥205 MPa (≥29.7 ksi) |
| Elongation | ≥40% |
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