EN 1.4571, ASTM 317Ti / UNS S31635 Stainless Steel

EN 1.4571, ASTM 317Ti / UNS S31635 Stainless Steel

EN 1.4571, ASTM 317Ti / UNS S31635 Stainless Steel 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...
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EN 1.4571, ASTM 317Ti / UNS S31635 Stainless Steel

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)


CMnCrNiMoN

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

StandardRp0.2Rp1.0RmRockwellHB

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.

DensityModulus of elasticityThermal exp. at 100 °CThermal conductivity

kg/dm3

GPa

10-6/°C

W/m°C

8.0

200

16,5

15


Product forms, available sizes and finishes

Flat

Product typeFinishesThicknessWidth

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 resistanceCrevice 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

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