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ASTM A312 S30815 253MA Seamless Pipe
ASTM A312 specification covers seamless, straight seam welded, and heavily cold worked welded austenitic stainless steel pipe for high temperature service (Grade TP304H, TP316H, TP347H). However, there is no specific mention of "S30815" or "253MA" in this standard.
"S30815" typically refers to the UNS (Unified Numbering System) designation for the alloy 253MA, which is a high-alloy austenitic stainless steel with excellent corrosion resistance in a variety of aggressive environments.
"253MA" stands for a type of stainless steel that is a high performance austenitic stainless steel. It has high strength, good ductility, and outstanding resistance to corrosion, especially in sulfuric acid environments. This material is often used in applications such as heat exchangers, chemical processing equipment, and marine applications.
If you're referring to a specific product or application that uses ASTM A312 specifications but with the alloy 253MA, it might be a custom or proprietary product. In such cases, you should refer to the manufacturer's specifications or consult with a materials expert to ensure the correct use and compatibility of this material within the ASTM A312 framework.
Equivalent Grades of ASTM A312 253MA SS Pipe
| Grade | UNS | WERKSTOFF NR. | EN | SS |
| 253MA(UNS S30815) | S30815 | 1.4835 | X9CrNiSiNCe21-11-2 | 2368 |
Chemical Composition of ASTM A312 253MA SS Pipe
| Grade | C max | Si max | Mn max | P max | S max | Cr | Ni | Mo | N |
| UNS S30815 | 0.05~0.10 | 1.4~2.0 | 0.80 | 0.030 | 0.030 | 20.0-22.0 | 10.0-12.0 | / | 0.14-0.20 |
Physical properties of ASTM A312 253MA SS Pipe
| Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (mm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat | Electrical Resistivity (nW.m) | |||
| 0-100°C | 0-600°C | 0-1000°C | at 20°C | at 1000°C | 0-100°C (J/kg.K) | |||
| 7800 | 200 | 17 | 18.5 | 19.5 | 15 | 29 | 500 | 850 |
Mechanical Properties of ASTM A312 253MA SS Pipe
| Tensile Str (MPa) min | Yield Str 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | |||
| 600 | 310 | 40 | 95 | 217 |
Application Of ASTM A312 S30815 253MA Seamless Pipe
1. Oil and gas industry
2. Chemical processing industry
3. Power generation industry
4. Water treatment industry
5. Marine industry
6. Food processing industry
