SS 309/310/310S Flanges Specifications
| Grade | SS 309/310/310S (UNS S30900/S31000/S31008) |
| Werkstoff Nr | 309 / 1.4828 310 / 1.4841 310S / 1.4845 |
| Dimension Std. | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges etc. |
| Specification | ASTM A182 / A240 & ASME SA182 / SA240 |
| Size | ½” NB – 48” NB |
| Class | 150#, 300#, 600#, 900#, 1500#, 2500#, etc |
| Pressure | DIN PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160, etc |
Chemical Compositions of SS 309/310/310S Flanges
| SS 309 | SS 310 | SS 310S | |
|---|---|---|---|
| Ni | 12 – 15 | 19 – 22 | 19 – 22 |
| Cr | 22 – 24 | 24 – 26 | 24 – 26 |
| C | 0.2 max | 0.25 max | 0.08 max |
| Fe | Balance | ||
| Mn | 2 max | 2 max | 2 max |
| Si | 1.0 max | 1.50 max | 1.50 max |
| S | 0.03 max | 0.03 max | 0.03 max |
| P | 0.045 max | 0.045 max | 0.045 max |
Mechanical Properties of SS 309 Flanges
| Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Brinell) MAX |
|---|---|---|---|---|
| 309 | 40 | 30 | 40 | 217 |
Mechanical Properties of SS 310/310S Flanges
| SS 310/310S | ||
|---|---|---|
| Tensile Strength | Psi – 75000 , MPa – 515 | |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 | |
| Elongation | 35 % | |
Physical Properties of SS 309 Flanges
| Grade | Density lbm/in3 |
Thermal Conductivity (BTU/h ft. °F) |
Electrical Resistivity (in x 10-6) |
Modulus of Elasticity (psi x 106 |
Coefficient of Thermal Expansion (in/in)/ °F x 10-6 |
Specific Heat (BTU/lb/ °F) |
Melting Range (°F) |
|---|---|---|---|---|---|---|---|
| 309 | at 68°F: 0.285 | 9.0 at 32- 212°F | 30.7 at 68°F | 28.5 | 8.28 at 32 – 212°F | 0.1200 at 68°F to 212°F | 2500-2590 |
Physical Properties of SS 310/310S Flanges
| SS 309/310/310S | |
|---|---|
| Density | 8.0 g/cm3 |
| Melting Point | 1454 °C (2650 °F) |
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