| Product Name: | Stainless Steel | Standard: | ASTM A312 / ASME SA312 |
|---|---|---|---|
| Material: | TP304/304L/304H/316L/309S/310S/316L/316H/317H/321/253MA， Etc. | O.D.: | 1/2”to 48” |
| W.T.: | SCH 5S To SCH XXS | Length: | Fixed Length， Random Length |
| End: | Plain Ends / Beveled Ends | Type: | Seamless / Welded |
| Surface: | Pickled And Annealed | ||
| High Light: | UNS S30815 Stainless Steel， ASTM A312 Stainless Steel， Pickled Annealed Stainless Steel | ||
ASTM A312 253MA / UNS S30815 / EN 1.4835 Stainless Steel
253MA， also known as UNS S30815， is a high-temperature austenitic stainless steel alloy that provides good oxidation resistance at elevated temperatures. It contains relatively high levels of both chromium and nickel， along with additions of nitrogen and manganese， to enhance its high-temperature capabilities. The alloy also exhibits good creep strength and structural stability at high temperatures， making it a valuable material in challenging operating conditions.
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 |
Key properties of 253MA / UNS S30815 include:
- High oxidation resistance: It can withstand high temperatures and resist oxidation， making it suitable for use in heat treatment equipment， industrial furnaces， and other high-temperature applications.
- Good creep strength: The alloy maintains its strength and structure even under prolonged exposure to high temperatures.
- Excellent resistance to sulfidation and carburization: It can resist damage caused by sulfur and carbon compounds in harsh environments.
- High weldability: 253MA stainless steel can be easily welded using common welding techniques.
Standard Available in forms
• ASTM A182/ ASME SA182 Stainlees Steel Pipe Fittings
• ASTM A213 / ASME SA213 Seamless Stainless Steel Pipes
• ASTM A240/ ASME SA240 Stainless Steels Sheets / Plates
• ASTM A249/ ASME SA249 Stainless Steel Welded Tubes
• ASTM A269/ ASME SA269 Stainless Steel Tubes
• ASTM A270/ ASME SA270 Stainless Steel Sanitary Tubes
• ASTM A312/ ASME SA312 Stainless Steel Pipes
• ASTM A403/ ASME SA403 Stainless Steel Pipe Fittings
• ASTM A554/ ASME SA554 Stainless Steel Welded Tubes
• ASTM A731/ ASME SA731 Stainless Steel Pipes
• ASTM A789/ ASME SA789 Stainless Steel Tubes
• ASTM A790/ ASME SA790 Stainless Steel Pipes
• ASTM A791/ ASME SA791 Stainless Steel Tubes
Apllications
Chemical
Pharmaceutical & Bio-Medical
Petrochemical & Refinery
Environmental
Food Processing
Chemical Fertilizer
Sewage Disposal
Desalination
Waste Incineration etc.
