Dalam 1.4571 Keluli tahan karat: Full Guide to Properties, Penggunaan & Fabrikasi

If you need a stainless steel that combines chloride corrosion resistance, high-temperature strength, and weld stability, Dalam 1.4571 Keluli tahan karat is the ideal choice. As the titanium-stabilized equivalent of AISI 316Ti, it’s trusted in industries like pharmaceuticals, Marin, and chemical processing. This guide covers everything from its specs to real-world applications, helping you make informed decisions for your projects.

1. Dalam 1.4571 Keluli tahan karat: Gambaran Keseluruhan & Spesifikasi utama

Let’s start with the basics ofDalam 1.4571 Keluli tahan karat—its composition, piawaian, and core properties.

Komposisi kimia

TheDalam 1.4571 komposisi is defined by its unique blend: 16-18% kromium (Rintangan kakisan), 10-14% nikel (austenitic structure), 2-3% molibdenum (chloride resistance), and 0.05–0.10% titanium (stabilization). This titanium content prevents intergranular corrosion, while molybdenum boosts performance in harsh environments.

Industry Standards & Equivalents

Dalam 1.4571 adheres to strict global standards for consistency:

• 1.4571 AISI 316Ti equivalent: It’s the direct European counterpart to AISI 316Ti, so they’re interchangeable in most projects.
• 1.4571 UNS S31635: The Unified Numbering System identifier, used in North America.
• 1.4571 Dalam 10088-2: European standard for flat products (lembaran/plat), dan 1.4571 ASTM A240 / 1.4571 ASME SA-240: ASTM/ASME standards for plates/sheets.

Fizikal & Sifat mekanikal

Below is a table of critical properties that makeDalam 1.4571 Keluli tahan karat ideal for harsh environments:

Contoh: A pharmaceutical company usesDalam 1.4571 Keluli tahan karat for drug mixing reactors. Itstitanium-stabilised austenitic structure prevents intergranular corrosion, keeping drugs pure and meeting FDA standards.

2. Rintangan kakisan & Prestasi alam sekitar

Dalam 1.4571 Keluli tahan karat’s biggest advantage is its exceptional corrosion resistance—especially against intergranular and chloride-induced corrosion.

Key Corrosion Behaviors

• 1.4571 Imuniti kakisan antara: Titanium binds with carbon to form 1.4571 titanium carbide/nitride stabilization, preventing carbon from combining with chromium. This makes it immune to intergranular corrosion—even after welding.
• 1.4571 chloride stress corrosion cracking immunity: Molybdenum and titanium work together to resist stress corrosion cracking in chloride environments (Mis., saltwater, Tangki kimia).
• 1.4571 pitting corrosion resistance: Its PREN ~23 rating means it resists pitting in harsh chloride settings (Mis., marine environments), far better than EN 1.4307 (AISI 304L).
• 1.4571 seawater corrosion limits: Can handle full seawater submersion (Mis., offshore ballast lines) with a corrosion rate of <0.1 mm/tahun.

Critical Corrosion Considerations

• 1.4571 crevice corrosion threshold: Avoid tight crevices (Mis., uncoated bolts) in wet areas—use sealants to prevent moisture trapping.
• 1.4571 sulfuric acid resistance: Resists dilute sulfuric acid (hingga 10% Konsentrasi) pada suhu bilik, suitable for chemical processing piping.
• 1.4571 acetic acid performance: Handles acetic acid (used in food processing) well, making it ideal for brewery tanks.
• 1.4571 vs 1.4401 Perbandingan kakisan: Both offer excellent chloride resistance, but EN 1.4571 is far better at resisting intergranular corrosion (Dalam 1.4401 may need post-weld annealing).

Kajian kes: An offshore oil rig usesDalam 1.4571 Keluli tahan karat for ballast lines. The lines are submerged in seawater, and EN 1.4571’schloride stress corrosion cracking immunity keeps them leak-free for 15+ tahun.

3. Suhu tinggi & Low-Temperature Properties

Dalam 1.4571 Keluli tahan karat performs reliably across a wide temperature range—from cryogenic to high heat.

Prestasi suhu tinggi

• 1.4571 high-temperature strength: Maintains strength up to 750 ° C., suitable for marine exhaust systems and industrial furnaces.
• 1.4571 rintangan pengoksidaan sehingga 850 °C intermittent: Resists scaling when used intermittently at high temperatures (Mis., furnace components).
• 1.4571 continuous service temperature: Safe for long-term use up to 700 °C—avoid higher temps to prevent strength loss.
• 1.4571 data pecah merayap: At 700 °C and 100 MPa stress, it resists creep (ubah bentuk perlahan) for over 10,000 jam.

Low-Temperature Performance

• 1.4571 low-temperature toughness: Remains ductile at -196 ° C. (liquid nitrogen temperature), used for cryogenic storage tanks.
• 1.4571 impact energy at -196 ° C.: Absorbs over 60 J of energy, preventing brittle fracture in cold environments.
• 1.4571 cryogenic ductility: Retains 90% of its room-temperature ductility at -196 °C—critical for LNG (liquefied natural gas) peralatan.

Thermal Properties

• 1.4571 thermal expansion coefficient: 16.5 × 10⁻⁶/°C (20–100 °C) — important for designing parts that handle temperature changes.
• 1.4571 thermal conductivity: 16.0 W/(m·K) pada 100 °C — efficient heat transfer for heat exchangers.

4. Rawatan haba & Kawalan Mikrostruktur

Proper heat treatment helps maintainDalam 1.4571 Keluli tahan karat’s corrosion resistance and high-temperature performance.

Common Heat Treatment Processes

Critical Considerations

• 1.4571 Penghindaran pemendakan karbida: Solution annealing prevents carbide formation at grain boundaries—critical for maintaining corrosion resistance.
• 1.4571 austenitic grain size ASTM 5–8: Controlled heating keeps grains small, balancing strength and ductility.
• 1.4571 cold working strain hardening: Kerja sejuk (Mis., membongkok) increases hardness but doesn’t reduce corrosion resistance.
• 1.4571 sigma phase formation kinetics: Low risk at temperatures below 700 °C—avoid prolonged exposure to 700–900 °C to prevent brittle sigma phase.
• 1.4571 magnetic permeability after cold work: May become slightly magnetic after heavy cold working, but this doesn’t impact performance.

Contoh: A heat exchanger manufacturer usesDalam 1.4571 Keluli tahan karat for tubes. They solution anneal at 1050 °C and do astabilising anneal 870–900 °C—tubes resist corrosion from hot coolants for 20+ tahun.

5. Kimpalan, Fabrikasi & Garis Panduan Pemesinan

Dalam 1.4571 Keluli tahan karat is easy to weld and fabricate, making it suitable for complex parts.

Petua kimpalan

• 1.4571 weldability rating: Cemerlang (rated 9/10)—works with TIG, Saya, and stick welding.
• 1.4571 Tiada pemantauan yang diperlukan: Saves time compared to martensitic grades (Mis., 410).
• 1.4571 filler metal ER316L/ER316Ti: Use ER316Ti for maximum stabilization, or ER316L for general applications.
• 1.4571 interpass temperature 150 °C max: Prevents overheating and carbide formation.
• 1.4571 post-weld stabilising PWHT: Optional but recommended for thick parts—anneal at 870–900 °C to enhance stabilization.
• 1.4571 Pemekaan haz percuma: The Heat-Affected Zone (Haz) near welds won’t become sensitized—unlike EN 1.4401.

Pemesinan & Fabrikasi

• 1.4571 Kelajuan dan suapan pemesinan: Use 120–180 m/min (turning) and 0.1–0.25 mm/rev—slower than EN 1.4301 due to molybdenum and titanium.
• 1.4571 Kehidupan alat dengan karbida bersalut: Coated carbide tools (Mis., Tialn) last 2–3x longer than uncoated tools.
• 1.4571 Kebolehbagaian Lukisan Deep: Good—its austenitic structure lets it be drawn into shapes like pharmaceutical reactor components.
• 1.4571 Teknik kawalan distorsi: Use balanced welding sequences and clamps to minimize warping—critical for precision parts like surgical implants.

Kajian kes: A brewery usesDalam 1.4571 Keluli tahan karat for fermentation tanks. They weld tanks with ER316Ti filler and followinterpass temperature 150 °C max—tanks resist corrosion from beer acids for 10+ tahun.

6. Borang produk, Saiz & Rantaian bekalan

Dalam 1.4571 Keluli tahan karat is available in diverse forms to fit any project.

Borang produk biasa

• 1.4571 Ketebalan plat keluli tahan karat: 3–200 mm (Reaktor kimia, Struktur luar pesisir).
• 1.4571 Carta tolok lembaran: 26 Tolok (0.45 mm) ke 8 Tolok (4.0 mm) (food equipment, implan pembedahan).
• 1.4571 seamless pipe EN 10216-5: Sizes ½–24 inches (oil and gas piping, desalination plants).
• 1.4571 welded tube EN 10217-7: Sizes ½–12 inches (pharmaceutical piping, brewery lines).
• 1.4571 Stok bar bulat: Diameters 5–300 mm (pengikat, Perkakasan Marin).

Petua Rantaian Bekalan

• 1.4571 Saiz besi sudut: 20x20x3 mm to 100x100x10 mm (structural supports in coastal buildings).
• 1.4571 Toleransi bar rata: ±0.1 mm for thickness—ideal for precision parts like 1.4571 surgical implants ISO piawaian.
• 1.4571 Pembekal Bar Hollow: Choose ISO 9001-certified suppliers for consistent wall thickness and titanium content.
• 1.4571 mirror finish sheets: 0.5–5 mm thicknesses (architectural cladding, peralatan perubatan).

7. Aplikasi industri & Kajian kes

Dalam 1.4571 Keluli tahan karat is used in industries where corrosion resistance, suhu tinggi, and hygiene are critical.

Aplikasi utama

• 1.4571 Reaktor farmaseutikal: Handle drugs and solvents without corrosion—meet strict hygiene standards.
• 1.4571 brewery tanks: Store beer and wort without adding metallic tastes—resist acid corrosion.
• 1.4571 chemical process piping: Transports harsh chemicals (Mis., Asid sulfurik) without rusting.
• 1.4571 marine exhaust systems: Resist high temperatures and saltwater corrosion.
• 1.4571 offshore ballast lines: Withstand full seawater submersion for decades.
• 1.4571 surgical implants ISO: Biocompatible and corrosion-resistant—used for hip and knee implants.

Contoh dunia nyata: Penggunaan pembuat peranti perubatanDalam 1.4571 Keluli tahan karat for surgical implants. The metal meets1.4571 surgical implants ISO piawaian, adalah biokompatibel, and resists corrosion from bodily fluids—ensuring implants last 20+ tahun.

Yigu Technology’s Perspective on EN 1.4571 Keluli tahan karat

Di Yigu Technology, we supplyDalam 1.4571 Keluli tahan karat to pharmaceutical, Marin, and medical clients globally. Its titanium stabilization and high PREN rating make it perfect for welded parts in harsh environments. We offer custom cuts (Mis., seamless pipe for desalination plants) and provide certification (Dalam 10088-2, ASTM A240) to meet industry standards. For medical clients, we ensure our EN 1.4571 meets ISO standards, so their implants are safe and durable.

FAQ About EN 1.4571 Keluli tahan karat

1. Is EN 1.4571 stainless steel magnetic?
   No—unless it’s heavily cold-worked. Its 1.4571 titanium-stabilised austenitic structure is non-magnetic, but heavy bending or stamping can make it slightly magnetic. This doesn’t affect corrosion resistance or strength.
2. When should I use EN 1.4571 instead of EN 1.4404?
   Use EN 1.4571 if your project involves high temperatures (di atas 600 ° C.) or needs Imuniti kakisan antara without post-weld annealing. Dalam 1.4404 is better for ultra-low carbon needs but lacks EN 1.4571’s high-temperature strength.
3. Can EN 1.4571 be used in food processing?
   Ya! Its acetic acid performance and corrosion resistance make it ideal for food equipment like brewery tanks and food conveyors. It meets FDA standards for food contact and is easy to clean—critical for food safety.