SS347 Stainless Steel is a columbium/tantalum stabilized austenitic chromium-nickel stainless steel.
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E Steel supply Stainless Steel SUS347 (SS347) Round Bars , Stainless Steel SUS347 (SS347) Plates and Sheets.
We supply ASTM SS347 Stainless Steel and SS347 AMS Spec. (Origin : Italy , Germany , Japan)
Stainless Steel SUS347 Suppliers – SUS347 , SS347 , UNS S34700 , DIN 1.4550SUS347 stainless steel is a columbium/tantalum stabilized austenitic chromium-nickel stainless steel.
This material is stabilized against chromium carbide formation by the addition of columbium and tantalum. Since these elements have a stronger affinity for carbon than chromium, columbium-tantalum carbides precipitate within the grains instead of forming at the grain boundaries. SUS 347 should be considered for applications requiring intermittent heating between 800ºF (427ºC) and 1650ºF (899ºC) or for welding under conditions which prevent a post-weld anneal.
* SS347 Stainless Steel is non-magnetic.
Chemical Composition of SUS347
|Niobium||10 x C min / 1.00 max|
* Maximum, unless range is indicated
Mechanical Properties of Stainless Steel 347 , SS347Mechanical property requirements for annealed product as specified in ASTM A240 and ASME SA240.
|Yield Strength, min. (ksi)||30|
|Tensile Strength, min. (ksi)||75|
|Elongation, min. (%)||40|
|Hardness, max. (Rb)||92|
Corrosion Resistance of AISI 347 Stainless SteelAlloy 347 stainless steel plate exhibits good general corrosion resistance that is comparable to SUS304. It was developed for use in the chromium carbide precipitation range of 800 – 1500°F (427 – 816°C) where un-stabilized alloys such as SUS304 are subject to intergranular attack. In this temperature range, the overall corrosion resistance of Alloy 347 stainless steel plate is superior to Alloy 321 stainless steel plate. Alloy 347 also performs somewhat better than Alloy 321 in strongly oxidizing environments up to 1500°F (816°C).
The alloy can be used in nitric solutions, most diluted organic acids at moderate temperatures and in pure phosphoric acid at lower temperatures and up to 10% diluted solutions at elevated temperatures. Alloy 347 stainless steel plate resists polythionic acid stress corrosion cracking in hydrocarbon service. It can also be utilized in chloride or fluoride free caustic solutions at moderate temperatures.
Alloy 347 stainless steel plate does not perform well in chloride solutions, even in small concentrations, or in sulfuric acid.
Applications of Stainless Steel SUS347SUS347 stainless steel is widely used on part with the requirements of 400 ~ 900 íŠ and corrosive condition and environment
under the temperature between 400íŠ and 900 íŠ:
• containers, pipes, heat exchangers
• shafts,structural components
• aviation, petrochemical, food, paper and other industries.
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