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Cold Rolled SS Sheet Coil Strips Grade 347 Used In Strong Oxidizing Acid Environment
| MOQ: | negotiated |
| Price: | negotiated |
| Standard Packaging: | Standard Seaworthy package |
| Delivery Period: | negotiated |
| Payment Method: | L/C,T/T,Western Union |
| Supply Capacity: | 5000tons per moth |
Cold rolled ss sheet coil
,347 ss sheet coil
,Mill edge stainless steel strips
Good Quality Ss Sheet Coils Strips Grade 347 Used In Strong Oxidizing Acid Environment
Description
Chemical Composition and Principle:
Basic Composition: Similar to 304 stainless steel, containing approximately 18% chromium and 9% nickel.
Key Stabilizing Element: Niobium (Nb) is added, with a niobium content at least 10 times the carbon content (usually expressed as Nb ≥ 10 × C). Sometimes a small amount of tantalum (Ta) is also added.
Role of Niobium: Similar to titanium (Ti) in 321. At high temperatures (sensitization range of 450°C - 850°C), niobium preferentially combines with carbon to form stable niobium carbide (NbC), thus preventing chromium depletion at grain boundaries caused by carbon combining with chromium, fundamentally immune to intergranular corrosion.
Key Differences from 321 (Titanium Stabilized):
Stronger Carbon Fixation Capacity: Niobium has a stronger and more stable carbon-binding capacity than titanium.
Better High-Temperature Performance: Niobium carbide is less prone to aggregation and growth at high temperatures. Therefore, 347 exhibits better microstructure stability and higher strength retention during long-term high-temperature service (e.g., above 600°C).
Improved weldability: The addition of niobium has minimal impact on the fluidity of the weld pool, resulting in excellent weldability.
Surface quality and machinability: The absence of titanium avoids titanium oxide inclusions, leading to superior surface finish and polishing properties, and facilitating cold forming.
Key properties:
Excellent resistance to intergranular corrosion: Stable performance after welding or high-temperature sensitization.
Excellent high-temperature strength: Superior creep strength and resistance to creep in environments above 500°C compared to 321 and 304.
Good corrosion resistance: Superior corrosion resistance to strong oxidizing acids (such as nitric acid) compared to 321 and 304.
Good weldability and formability.
PRODUCTS DISPLAY
Q1. What are your company's main products ?
A1: Our main products are stainless steel plate/sheet, coil, round/square pipe, bar, channel, etc.
Q2. How do you control quality ?
A2: Mill Test Certification is supplied with shipment, Third Party Inspection is available. and we also get ISO,SGS.
Q3. What are the advantages of your company ?
A3: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.
Q4. How many coutries you already exported ?
A4: Exported to more than 50 countries mainly from America, , UK, Kuwait, Egypt, Turkey, Jordan,India, etc.
Q5. Can you provide sample ?
A5: We can provide the samll samples in stock for free, as long as you contact us.
Customized samples will take about 5-7days.
