General Characteristics
317Ti/1.4571 is a titanium-stabilized, molybdenum-alloyed austenitic steel for highly corrosive environments, including applications in elevated temperatures.
Typical Applications
Chimney constructions
Flue gas applications
Chemical Composition (% by mass)
| C | Mn | Cr | Ni | Mo | N | |
Typical | 0.04 | 16.8 | 10.9 | 2.1 | ||
ASTM A240 | ≤0.08 | ≤2.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | ≤0.10 |
EN 10028-7 | ≤0.08 | ≤2.00 | 16.5-18.5 | 10.5-13.5 | 2.00-2.50 | |
IS 6911 | ≤0.08 | ≤2.0 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | ≤0.10 |
MPS/SF/0005 | ≤0.08 | ≤2.00 | 16.00-18.00 | 10.00-14.00 | 2.00-3.00 | ≤0.10 |
Mechanical Properties
| Standard | Rp0.2 | Rp1.0 | Rm | Rockwell | HB |
MPa | MPa | MPa | |||
Product type: Cold rolled coil and sheet | |||||
Typical (thickness 1 mm) | 285 | 310 | 615 | ||
ASME II A SA-240 | ≥ 205 | ≥ 515 | ≤ 217 | ||
ASTM A240 | ≥ 205 | ≥ 515 | ≤ 95HRB | ≤ 217 | |
EN 10028-7 | ≥ 240 | ≥ 270 | 540-690 | ||
IS 6911 | ≥ 205 | ≥ 515 | ≤ 95HRB | ≤ 217 | |
Product type: Hot rolled coil and sheet | |||||
Typical (thickness 4 mm) | 295 | 345 | 595 | 170 | |
ASTM A240 | ≥ 205 | ≥ 515 | ≤ 217 | ||
EN 10028-7 | ≥ 240 | ≥ 270 | 540-690 | ||
| IS 6911 | ≥ 205 | ≥ 515 | ≤ 95HRB | ≤ 217 | |
1)Elongation according to EN standard: A80 for thickness below 3 mm. A for thickness = 3 mm. Elongation according to ASTM standard A2” or A50.
Physical Properties
Physical properties according to EN 10088 are shown below.
| Density | Modulus of elasticity | Thermal exp. at 100 °C | Thermal conductivity |
kg/dm3 | GPa | 10-6/°C | W/m°C |
8.0 | 200 | 16,5 | 15 |
Product forms, available sizes and finishes
Flat
| Product type | Finishes | Thickness | Width |
Cold rolled coil | 2H | 0,05-6,00 | 3-1530 |
Cold rolled sheet | 2H | 0,30-6,00 | 100-1530 |
Precision strip | 2H | 0,05-1,50 | 3-630 |
Corrosion Resistance
| Pitting corrosion resistance | Crevice corrosion resistance | |
PRE | CPT | CCT |
24 | 15±2 | <0 |
PRE Pitting Resistant Equivalent calculated using the formula: PRE = %Cr + 3.3 x %Mo + 16 x %NCPT Corrosion Pitting Temperature as measured in the Avesta Cell (ASTM G 150), in a 1M NaCl solution (35,000 ppm or mg/l chloride ions).CCT Critical Crevice Corrosion Temperature is the critical crevice corrosion temperature which is obtained by laboratory tests according to ASTM G 48 Method F
