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TP317H/TP347H

Alloy 317L (UNS S31703) is a low carbon corrosion resistant austenitic chromium-nickel-molybdenum stainless steel. The high levels of these elements assure the alloy has superior chloride pitting and general corrosion resistance to the conventional 304/304L and 316/316L grades. The alloy provides improved resistance relative to 316L in strongly corrosive environments containing sulfurous media, chlorides, and other halides.
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Product Description

Chemical Composition

C

Si

Mn

P

S

Cr

Mo

Ni

≤0.035

≤0.075

≤2.00

≤0.04

≤0.03

18.00-20.22

3.00-4.00

11.00-15.00


Mechanical Properties

Tensile Strength ksi (min.)

Yield Strength 0.2% Offset ksi (min.)

Elongation -% in 50 mm (min.)

Hardness (Brinell) MAX

75

30

40

217

Applications

Alloy 317L is commonly used to handle sulfur, pulp liquor, acid dyestuffs, acetylating and nitrating mixtures, bleaching solutions, severe coal and oil, and many chemical compounds. Some other applications that use alloy 317L include:

• Paper and pulp handling equipment

• Chemical and petrochemical processing equipment

• Condensers in fossil and nuclear fueled power generation stations

• Food processing equipment

• Textile equipment



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Shengguang Stainless Steel co.,ltd is the leading manufacturer and supplier of stainless steel, duplex stainless, super nickle alloy and titanium pipes and tubes with more than 20 years experience of supplying to a great variety of end users from different fields.
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