EN 1.4438, ASTM TYPE 317L / UNS S31703 Stainless Steel

EN 1.4438, ASTM TYPE 317L / UNS S31703 Stainless Steel

EN 1.4438, ASTM TYPE 317L / UNS S31703 Stainless Steel General Characteristics Mo alloyed austenitic grade with higher corrosion resistance than “316L”, e.g. used in the chemical processing industry. Typical Applications Chemical tankers Pulp and Paper equipment Condenser tubes and heat...
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Product Details

EN 1.4438, ASTM TYPE 317L / UNS S31703 Stainless Steel

General Characteristics

Mo alloyed austenitic grade with higher corrosion resistance than “316L”, e.g. used in the chemical processing industry.


Typical Applications

  • Chemical tankers

  • Pulp and Paper equipment

  • Condenser tubes and heat exchanger tubes

  • Equipment for the petrochemical industry

  • Flue-gas desulfurization equipment


Chemical Composition

The chemical composition may vary slightly between different product standards. The required standard will be fully met as specified on the order.

The chemical composition is given as % by weight.



C

Mn

CrNiMoN

Typical

0.02


18.2

13.7

3.1


ASME II A SA-240

≤0.030

≤2.00

18.0-20.0

11.0-15.0

3.0-4.0

≤0.10

ASTM A240

≤0.030

≤2.00

18.0-20.0

11.0-15.0

3.0-4.0

≤0.10

EN 10028-7

≤0.030

≤2.00

17.5-19.5

13.0-16.0

3.0-4.0

≤0.10

EN 10088-2

≤0.030

≤2.0

17.5-19.5

13.0-16.0

3.0-4.0

≤0.10

EN 10088-3

≤0.030

≤2.00

17.5-19.5

13.0-16.0

3.0-4.0

≤0.10

EN 10088-4

≤0.030

≤2.0

17.5-19.5

13.0-16.0

3.0-4.0

≤0.10

IS 6911

≤0.030

≤2.00

18.0-20.0

11.0-15.0

3.0-4.0

≤0.10


Mechanical Properties

The mechanical properties of the available products are given in the table below.


StandardRp0.2Rp1.0RmElongationRockwellHB

MPa

MPa

MPa

%



Product type: Cold rolled coil and sheet

Typical (thickness 1 mm)







ASME II A SA-240

≥ 205


≥ 515



≤ 217

ASTM A240

≥ 205


≥ 515


≤ 95HRB

≤ 217

IS 6911

≥ 205


≥ 515


≤ 95HRB

≤ 217

Product type: Hot rolled coil and sheet

Typical (thickness 4 mm)







ASME II A SA-240

≥ 205


≥ 515



≤ 217

ASTM A240

≥ 205


≥ 515



≤ 217

IS 6911

≥ 205


≥ 515


≤ 95HRB

≤ 217

Product type: Hot rolled quarto plate

Typical (thickness 15 mm)

300

340

610

50



ASME II A SA-240

≥ 205


≥ 515


≤ 95HRB

≤ 217

ASTM A240

≥ 205


≥ 515


≤ 95HRB

≤ 217

EN 10028-7

≥ 220

≥ 260

520-720

≥ 40



EN 10088-2

≥ 220

≥ 260

520-720

≥ 40



EN 10088-4

≥ 220

≥ 260

520-720

≥ 40



IS 6911

≥ 205


≥ 515


≤ 95HRB

≤ 217

Product type: Wire rod

Typical

260

280

580

50




Physical Properties

Data according to EN 10088, EN 10095 or typical values.

DensityModulus of elasticityThermal exp. at 100 °CThermal conductivity

kg/dm3

GPa

10-6/°C

W/m°C

8.0

200

16,0

14


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