

Толстый лист нержавеющей стали
Thick stainless steel sheets cover a wide range of specifications from medium plates around 3 mm to extra heavy plates above 100 толщина мм. These materials are widely used in heavy industrial and structural applications where strength, коррозионная стойкость, and durability are required.
Common grades such as 304, 316, and duplex stainless steels are available in various thicknesses and dimensions, allowing stainless steel plates to meet diverse engineering and fabrication requirements.
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- Описание
Thick stainless steel sheet refers to medium and heavy gauge stainless steel plates used in structural engineering, промышленное оборудование, сосуды под давлением, судостроение, machinery manufacturing, and heavy fabrication industries. Compared with thin stainless steel sheets, thick plates provide higher strength, лучшая несущая способность, и улучшенная структурная стабильность.
The definition of “thick” stainless steel sheet varies by industry, but materials above approximately 3 mm thickness are generally classified as medium or thick stainless steel plates.
1. Common Thickness Range of Stainless Steel Sheets and Plates
| Категория | Диапазон толщины | Типичное применение |
|---|---|---|
| Thin Stainless Steel Sheet | 0.3 мм – 3 мм | Decoration, кухонное оборудование, прецизионное изготовление |
| Medium Thickness Plate | 3 мм – 20 мм | Структурное изготовление, танки, техника |
| Thick Stainless Steel Plate | 20 мм – 60 мм | Heavy industry, сосуды под давлением |
| Extra Thick Stainless Steel Plate | 60 мм и выше | Оффшор, судостроение, heavy engineering |
2. Common Standard Thickness Specifications
The following thicknesses are commonly available in international stainless steel markets:
Thin to Medium Thickness
- 1 мм
- 1.5 мм
- 2 мм
- 3 мм
- 4 мм
- 5 мм
- 6 мм
Medium to Heavy Thickness
- 8 мм
- 10 мм
- 12 мм
- 14 мм
- 16 мм
- 20 мм
- 25 мм
Heavy Plate Thickness
- 30 мм
- 40 мм
- 50 мм
- 60 мм
- 80 мм
- 100 мм и выше
3. Common Width and Length Specifications
Thick stainless steel sheets are typically supplied in standard plate dimensions.
| Ширина | Общая длина |
|---|---|
| 1000 мм | 2000 мм |
| 1219 мм | 2438 мм |
| 1500 мм | 3000 мм |
| 1800 мм | 6000 мм |
| 2000 мм | 6000 мм |
Custom cutting and processing sizes are also common in industrial applications.
4. Hot Rolled vs Cold Rolled Thickness Range
Холоднокатаная нержавеющая сталь
- Usually produced from 0.3 мм до 6 мм
- Better surface finish and dimensional accuracy
- Common surface finishes: 2Б, бакалавр, матовый
Горячекатаная нержавеющая сталь
- Commonly produced above 3 толщина мм
- Suitable for heavy plates and structural applications
- Typical surface finish: No.1 finish
Thicker stainless steel plates are generally manufactured using hot rolling processes.
5. Common Stainless Steel Grades for Thick Plates
| Оценка | Main Characteristics |
|---|---|
| 304 | Общая коррозионная стойкость |
| 304л | Улучшенная свариваемость |
| 316 | Improved chloride resistance |
| 316л | Низкоуглеродистый, chemical applications |
| 310С | Устойчивость к высоким температурам |
| 2205 Дуплекс | High strength and corrosion resistance |
6. Industrial Applications of Thick Stainless Steel Plates
Thick stainless steel sheets are widely used in:
- Сосуды под давлением
- Резервуары для хранения химикатов
- Shipbuilding structures
- Морские платформы
- Heavy machinery manufacturing
- Теплообменники
- Промышленные трубопроводы
- Structural engineering systems
7. Processing Characteristics of Thick Stainless Steel
По мере увеличения толщины, processing difficulty also increases.
Common processing methods:
- Плазменная резка
- Гидроабразивная резка
- обработка с ЧПУ
- Heavy plate welding
- Rolling and forming
Key considerations:
- Higher welding heat input required
- Stronger forming equipment needed
- Slower machining speed
- Stress control during fabrication












