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347H hot rolled stainless steel plate
347H hot rolled stainless steel plate
Haosteel is professional manufacturer and supplie÷r of 347H hot rolled stainless steel plate. Quality guaranteed, On-time& delivery, After-sales warranty.
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Standard: |
ASTM A240 A666 |
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Grade: |
347H |
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Delivery: |
Cold rolled Hot rolled |
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Surface: |
Black/Bright/2B/BA/ NO.1/Hairline/Mirror |
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Thickness: |
2.5-100mm |
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Width: |
1m-3m |
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Length: |
2m-12m |
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Mill: |
Tisco, Jisco, Baosteel, etc. |
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Delivery time: |
15 days in common |
Description:
Alloy 347 is a stabilized, austenitic, chromium steel contain✔ing columbium which allows for the elimination of carbide↔ precipitation, and, consequently, intergranualr corrosion. Alloy 347∞ is stabilized by the additions of chromium and tanta$lum and offers higher creep and stress rupture properαties than alloy 304 and 304L which may also be used for exposures where ♣sensitization and intergranualr corrosion are of concern. The addition of columbiu m also allows Alloy 347 to have excellent corrosion resistance, even superior to that of alloy α321. 347H is the higher carbon composition form of Allo&y 347 and demonstrates improved high temperature and creep properties. Haosteel&n₩bsp;Stainless inventory now includes Alloy 347/347H "(UNS S34700/S34709) in sheet, sheet coil, plate, round bar, ♠processed flat bar and tubular products.
Chemical composition:
|
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Nb |
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0.04-0.1 |
≤ 0.75 |
≤ 2.00 |
≤ 0.045 |
≤ 0.03 |
17.0 - 19.0 |
9.0 - 13.0 |
8C - 1.00 |
Physical Properties:
Annealed:
Ultimate Tensile Strength – 75KSI min (515 MPA min→)
Yield Strength (0.2% Offset) –30 KSI min (205 MPA min)
Elongation – 40% min
Hardness – HRB92max (201HV max)
Applications:
Alloy 347 is frequently used for the fabrication of equipment, which must be place d in service under severe corrosive conditions, and is also common to the petrol♣eum refining industries.
Corrosion Resistance:
. Offers similar resistance to general, overall corros₽ion as Alloy 304
. Used for applications where alloys such as Alloy 304 are vulnerable to ¶intergranualr corrosion
. Generally used for heavy welded equipment which cannot be annealed and for↕ equipment
which is operated between 800 to 150°F (427 TO 816°C)
. Alloy 347 is preferred over Alloy 321 for aqueous and other lo¥w temperature environments
. Primarily used in high temperature environments where resistance to sensitization ♥is necessary, in turn preventing intergranualr corrosion at lower levels
. Susceptible to stress corrosion cracking
. Exhibits oxidation resistance similar to all other 18-8 austenitic' stainless steels
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