3мм нержавеющий лист
А 3mm stainless sheet sits at the boundary between cold rolled and hot rolled production. The correct choice depends on:
- Требования к отделке поверхности
- Размерный допуск
- Механические свойства
- Application environment
General recommendation:
- Использовать cold rolled 3mm stainless sheet for precision and appearance
- Использовать hot rolled 3mm stainless plate for structural and heavy-duty use
- Описание
А 3mm stainless sheet is a medium-thickness flat-rolled stainless steel product widely used in fabrication, строительство, производство оборудования, и промышленное применение.
At this thickness, stainless steel can be produced by both холодная прокатка и горячая прокатка, making it an important selection point in engineering and procurement.
Cold Rolled vs Hot Rolled Stainless Steel
The rolling process determines the sheet’s thickness capability, терпимость, обработка поверхности, и механические свойства.
Холоднокатаный лист из нержавеющей стали
Cold rolling is performed at room temperature after hot rolling, followed by annealing and surface finishing.
Характеристики:
- Гладкая и однородная поверхность (2Б, BA finishes)
- High dimensional accuracy and tight tolerances
- Improved strength due to work hardening
- Excellent flatness
Типичный диапазон толщины:
- 0.3mm – 6mm
- Most commonly used below 4.5mm
Приложения:
- Прецизионные компоненты
- Декоративные панели
- Кухонное оборудование и техника
- Medical and food-grade equipment
Hot Rolled Stainless Steel Sheet
Hot rolling is carried out at high temperatures above recrystallization, allowing larger deformation and thicker products.
Характеристики:
- Шероховатая поверхность (No.1 finish, pickled or scaled)
- Lower dimensional accuracy compared to cold rolled
- Better ductility for forming and welding
- Suitable for heavy-duty applications
Типичный диапазон толщины:
- 3mm – 200mm+
Приложения:
- Структурное изготовление
- Тяжелая техника
- Промышленные платформы
- Pressure vessels and tanks
Thickness and Process Comparison Table
| Тип процесса | Диапазон толщины | Толерантность | Поверхностная обработка | Основные приложения |
|---|---|---|---|---|
| Cold Rolled Stainless Sheet | 0.3mm – 6mm | Высокая точность (±0.10mm) | Гладкий (2Б, бакалавр) | Декоративный, прецизионные детали |
| Hot Rolled Stainless Sheet | 3mm – 200mm+ | Более низкая точность (±0.20–0.30mm) | Грубый (№1) | Структурный, промышленный |
Why 3mm is a Critical Thickness
The 3mm thickness is considered a transition point between cold rolled and hot rolled stainless steel.
Key Reasons:
1. Equipment and Rolling Capability
- Cold rolling requires higher pressure as thickness increases
- Efficient production typically limits cold rolled sheets to ≤6mm
- Hot rolling can easily produce thicker sections from slabs
2. Surface Requirements
- Cold rolled sheets are selected when appearance and smoothness are important
- Hot rolled sheets are used where surface finish is not critical
3. Точность размеров
- Холоднокатаный: tighter tolerances for precision manufacturing
- Горячекатаный: acceptable variation for structural use
4. Mechanical Behavior
- Cold rolled increases strength and hardness
- Hot rolled improves ductility and weldability
Standard Sizes for 3mm Stainless Sheet
Common Sheet Formats
| Толщина | Ширина (мм) | Длина (мм) | Supply Form |
|---|---|---|---|
| 3.0 мм | 1000 / 1219 / 1500 | 2000 / 2438 / 3000 | Лист |
| 3.0 мм | 1000 – 2000 | Coil length | Катушка |
Примечания:
- Cold rolled 3mm is usually supplied as precision flat sheets
- Hot rolled 3mm is often supplied as plate or pickled sheet (HRAP)
- Custom sizes are widely available for fabrication
Application Selection Guide
| Requirement | Recommended Type |
|---|---|
| High surface quality | Холоднокатаный |
| Tight tolerance machining | Холоднокатаный |
| Структурная сварка | Горячекатаный |
| Heavy load applications | Горячекатаный |
| Гигиеническая среда | Холоднокатаный |
