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ASTM A182 F347 Flange

  • Material:stainless
  • Production:slip on/WN /SW/Threaded/Blind/Lapped joint/Long WN flange
  • Product standards:ASME B16.5
  • Min.Order Quantity:1 Piece/Pieces

Type 347 is a niobium stabilized chromium nickel austenitic stainless steel with corrosion resistance similar to 304/304L.
This grade is typically used in the 800-1500˚F temperature range where it is stabilized against chromium carbide precipitation by the addition of niobium,
which results in the precipitation of niobium carbides. Type 347 has excellent intergranular corrosion resistance after exposure to this temperature range,
and this grade resists oxidation up to 1500˚F and has higher creep and stress rupture properties than 304/304L.
It also possesses good low temperature toughness and is non-magnetic in the annealed condition.

 

Chemical Composition

Element

347

Carbon

0.08

Chromium

17.0-19.0

Nickel

9.0-13.0

Manganese

2.00

Silicon

0.75

Phosphorus

0.045

Sulfur

0.030

Niobium

10 x C min / 1.00 max

* Maximum, unless range is indicated

 Mechanical Properties

Property

347

Yield Strength, min. (ksi)

30

Tensile Strength, min. (ksi)

75

Elongation, min. (%)

40

Hardness, max. (Rb)

92

 

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