GB 0Cr18Ni10Ti Stainless Steel: Характеристики, Использование & Comparison Guide

If you’re looking for a stainless steel that handles heat and resists corrosion—especially after welding—GB 0Cr18Ni10Ti Stainless Steel это главный соперник. But what makes its titanium-stabilized design unique? And when should you choose it over common grades like SUS304? This guide breaks down its key features, Реальное мир использует, manufacturing steps, and how it stacks up to other materials. К концу, you’ll have all the info to pick the right steel for your project.

1. Material Properties of GB 0Cr18Ni10Ti

ПроизводительностьGB 0Cr18Ni10Ti starts with its one-of-a-kindalloy composition иАустенитная структура—paired with a critical feature: титановая стабилизация. Let’s break down what makes it reliable:

Core Alloy Elements

• High chromium content (17.0-19.0%): Forms a protective oxide layer to fight rust and general corrosion.
• Высокое содержание никеля (9.0-12.0%): Keeps the Аустенитная структура stable, boosting ductility and low-temperature toughness.
• Titanium stabilization (0.20-0.80% Из): Binds with carbon in the alloy, preventing chromium carbides from forming during high-heat processes (like welding). This eliminates a major cause of межцентральная коррозия (a common flaw in non-stabilized steels).
• Содержание углерода (максимум 0.08%): Balances strength and weldability without compromising corrosion resistance.

Key Mechanical Strength Data

Реальный пример: A Shanghai boiler manufacturer usesGB 0Cr18Ni10Ti for heat exchanger tubes. The material’s high elongation (≥40%) lets tubes bend into tight shapes, покатитановая стабилизация ensures they don’t corrode—even after welding and repeated exposure to 300°C hot water.

2. Applications of GB 0Cr18Ni10Ti

GB 0Cr18Ni10Ti shines in projects that involve heat, сварка, or mild corrosive environments—where non-stabilized steels (Как SUS304) might fail. Вот его главное использование, with practical cases:

• Химическая обработка заводов: Ideal for pipes and reactors that handle mild acids (НАПРИМЕР., acetic acid) and high temperatures. A Jiangsu chemical plant replaced SUS304 pipes with GB 0Cr18Ni10Ti—the new pipes showed no intergranular corrosion after 2 years of welding and heat cycles.
• Продовольственное оборудование: Used for baking ovens, sterilizers, and mixing tanks. A Guangdong bakery chose GB 0Cr18Ni10Ti for oven interiors—its heat resistance (до 800 ° C.) and easy-to-clean surface prevent food sticking and rust.
• Аэрокосмические компоненты: Found in internal parts of aircraft (НАПРИМЕР., топливные линии) that need to withstand temperature changes. A Chinese aerospace supplier reported that GB 0Cr18Ni10Ti parts meet strict weight and durability requirements, with no corrosion issues at high altitudes.
• Медицинские устройства: Used for surgical instrument trays and autoclave chambers. A Wuhan hospital uses GB 0Cr18Ni10Ti trays—their resistance to high-temperature sterilization (121° C.) and non-toxicity keep instruments clean and safe.
• Construction Materials: Used for high-temperature exhaust systems in commercial buildings. A Beijing mall installed GB 0Cr18Ni10Ti exhaust ducts—they’ve resisted corrosion from city pollution and heat for 5 годы.
• Other uses: Автомобильные детали (exhaust manifolds for heavy-duty trucks), Electrical Appliances (oven heating elements), и Санитарные фитинги (high-temperature water faucets).

3. Manufacturing Processes for GB 0Cr18Ni10Ti

ProducingGB 0Cr18Ni10Ti requires precise steps to preserve itsтитановая стабилизация иАустенитная структура. Вот как это сделано:

1. Горячая катящика: Heat the alloy to 1100-1200°C and roll it into thick plates or coils. This step softens the material for shaping—critical for making large parts like reactor shells. A Hebei steel mill uses hot rolling to produce 20mm-thick GB 0Cr18Ni10Ti plates for chemical plants.
2. Холодный катание: Use room-temperature pressure to reduce thickness (НАПРИМЕР., to 1mm for oven sheets). Cold rolling improves surface smoothness but hardens the metal—so annealing is needed next.
3. Отжиг: Heat to 950-1050°C, hold for 30 минуты, then cool rapidly. This restores ductility and ensures titanium fully binds with carbon (key for титановая стабилизация). A Zhejiang factory anneals all GB 0Cr18Ni10Ti sheets to prevent cracking during bending.
4. Маринованный: Dip in nitric acid to remove oxide scales from rolling. Pickling brightens the surface and enhances corrosion resistance—essential for food or medical parts.
5. Drawing/Extrusion: Pull the alloy through dies to make wires or tubes. Drawn GB 0Cr18Ni10Ti wires are used for medical instrument springs, while extruded tubes work in chemical pipes.
6. Обработка: Cut the material into final parts (НАПРИМЕР., valve handles). Use high-speed steel tools—its ductility means it can be drilled or turned easily without chipping. A Shenzhen workshop recommends a cutting speed of 180 m/min for best results.
7. Ковкость: Hammer the alloy into complex shapes (НАПРИМЕР., насосные оболочки). Forging at 900-1000°C ensures parts keep their strength and титановая стабилизация преимущества.

6. Standards and Specifications for GB 0Cr18Ni10Ti

Чтобы убедиться, что вы получаете высокое качество, genuineGB 0Cr18Ni10Ti, always check compliance with these standards:

• GB/T 20878: The core Chinese standard for stainless steels—it defines the alloy’s alloy composition (including titanium content), mechanical strength, и методы тестирования.
• ASTM A240: НАС. standard—GB 0Cr18Ni10Ti is equivalent to ASTM 321, so it meets this standard’s requirements for flat products (тарелки, простыни).
• В 10088: European standard—equivalent grade is X6CrNiTi18-10, making it suitable for EU-based projects (НАПРИМЕР., food processing plants in Germany).
• Стандарты ISO: Iso 15510 aligns with GB 0Cr18Ni10Ti for pressure equipment (НАПРИМЕР., химические реакторы).

Always ask suppliers for:

• Сертификация материала (НАПРИМЕР., Mill Test Report) Чтобы проверить содержание титана (must be 0.20-0.80%) и механические свойства.
• Conformance Testing results (НАПРИМЕР., GB/T 4334.5 for intergranular corrosion resistance—critical for welded parts).
• Technical Data Sheets (TDS) with details on annealing temperatures and welding guidelines.

Контроль качества это ключ: A Fujian supplier once sold fakeGB 0Cr18Ni10Ti with too little titanium—parts developed intergranular corrosion after welding. Always confirm compliance before buying.

7. Сравнение: GB 0Cr18Ni10Ti vs. Другие материалы

Как это делаетGB 0Cr18Ni10Ti stack up against common stainless steels and alloys? Below is a side-by-side comparison focusing on key factors like corrosion resistance, сила, и стоимость:

Например: If you’re building a welded chemical reactor, GB 0Cr18Ni10Ti is better than SUS304 (no intergranular corrosion) and cheaper than SUS316. If you’re making a home kitchen sink, хотя, SUS304 is more cost-effective.

Перспектива Yigu Technology

В Yigu Technology, Мы поставилиGB 0Cr18Ni10Ti to chemical, аэрокосмическая, and food clients for 14 годы. Its biggest strength isтитановая стабилизация—it eliminates the need for post-weld heat treatment, saving clients time and money. Our data shows it reduces welded part failures by 35% против. SUS304 in high-heat projects. We also offer custom machining to ensure parts fit tight tolerances, like aerospace fuel lines. For clients needing reliable performance in welded, hot environments, it’s our go-to recommendation.

Часто задаваемые вопросы

1. Can GB 0Cr18Ni10Ti be used in seawater?
   No—its Pitting Resistance Equivalent (PRE) из 18 is too low for saltwater. It will develop pitting corrosion over time. For marine applications, use SUS316 or duplex stainless steel instead.
2. Do I need post-weld heat treatment for GB 0Cr18Ni10Ti?
   Нет-титановая стабилизация binds carbon, preventing intergranular corrosion. This skips the need for post-weld annealing, unlike SUS304 (which requires heat treatment after welding for corrosive projects).
3. Is GB 0Cr18Ni10Ti safe for food contact?
   Yes—it meets global food safety standards (НАПРИМЕР., China’s GB 4806.9). Its non-toxic composition and resistance to high temperatures make it ideal for baking ovens and food sterilizers.