Stainless Steel - Austenitic - S31700 Sheet And Plate

Stainless Steel - Austenitic - S31700 Sheet And Plate

Stainless Steel - Austenitic - S31700 Sheet and Plate 317(18cr-12ni-3.5 Mo) stainless steel has better pitting corrosion resistance than 316 steel. 317 stainless steel used for printing and dyeing equipment materials. Stainless steels are known as high-alloy steels. They consist about 4-30% of...
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Stainless Steel - Austenitic - S31700 Sheet and Plate

317(18cr-12ni-3.5 Mo) stainless steel has better pitting corrosion resistance than 316 steel. 317 stainless steel used for printing and dyeing equipment materials.


Stainless steels are known as high-alloy steels. They consist about 4-30% of chromium. They are classified into martensitic, austenitic, and ferritic steels based on their crystalline structure.


Chemical Composition

Carbon 0.08 max

Chromium 18 - 20

Iron Balance

Manganese 2 max

Molybdenum 3 - 4

Nickel 11 - 15

Phosphorus 0.045 max

Silicon 1 max

Sulphur 0.03 max


Machanical PropertiesMetricImperial

Tensile strength

620 MPa

89900 psi

Yield strength

275 MPa

39900 psi

Elastic modulus

193 GPa

27993 ksi

Poisson's ratio

0.27-0.30

0.27-0.30

Elongation at break (in 50 mm)

45%

45%

Hardness, Rockwell B

85

85


Physical Properties

Density (lb / cu. in.)0.29

Specific Gravity7.9

Specific Heat (Btu/lb/Deg F - [32-212 Deg F])0.12

Electrical Resistivity (microhm-cm (at 68 Deg F))444

Melting Point (Deg F)2550

Modulus of Elasticity Tension28


Machinability

    Grade 317 stainless steel is tougher than 304 stainless steel. It is recommended to use chip breakers. Hardenability of this alloy will be reduced if constant feeds and low speeds are used.


    Welding

    Grade 317 stainless steel can be welded using fusion and resistance methods. Oxyacetylene welding method is not preferred for this alloy. AWS E/ER317 or 317L filler metal can be used to obtain good result.


    Hot Working

    Grade 317 stainless steel can be hot worked using all common hot working procedures. It is heated at 1149-1260°C (2100-2300°F). It should not be heated below 927°C (1700°F). Post-work annealing can be done to retain the corrosion resistance property.


    Cold Working

    Stamping, shearing, drawing, and heading can be done successfully. Post-work annealing is performed in order to reduce internal stress.


    Annealing

    Grade 317 stainless steel is annealed at 1010-1121°C (1850-2050°F) followed by cooling.


    Hardening

    Grade 317 stainless steel does not react to heat treatment. It can be hardened by cold working.


    Applications

    Grade 317 stainless steel is used in the following applications:

    • Pulping paper

    • Textile

    • Chemical equipment


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