Tấm thép không gỉ dày

Thick stainless steel sheets cover a wide range of specifications from medium plates around 3 mm to extra heavy plates above 100 mm thickness. These materials are widely used in heavy industrial and structural applications where strength, chống ăn mòn, 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.

Thick stainless steel sheet refers to medium and heavy gauge stainless steel plates used in structural engineering, thiết bị công nghiệp, bình áp lực, đóng tàu, chế tạo máy móc, and heavy fabrication industries. Compared with thin stainless steel sheets, thick plates provide higher strength, khả năng chịu tải tốt hơn, và cải thiện sự ổn định của cấu trúc.

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

Category Phạm vi độ dày Typical Application
Thin Stainless Steel Sheet 0.3 mm – 3 mm trang trí, thiết bị nhà bếp, chế tạo chính xác
Medium Thickness Plate 3 mm – 20 mm Chế tạo kết cấu, xe tăng, máy móc
Thick Stainless Steel Plate 20 mm – 60 mm Heavy industry, bình áp lực
Extra Thick Stainless Steel Plate 60 mm trở lên Ngoài khơi, đóng tàu, heavy engineering

2. Common Standard Thickness Specifications

The following thicknesses are commonly available in international stainless steel markets:

Thin to Medium Thickness

  • 1 mm
  • 1.5 mm
  • 2 mm
  • 3 mm
  • 4 mm
  • 5 mm
  • 6 mm

Medium to Heavy Thickness

  • 8 mm
  • 10 mm
  • 12 mm
  • 14 mm
  • 16 mm
  • 20 mm
  • 25 mm

Heavy Plate Thickness

  • 30 mm
  • 40 mm
  • 50 mm
  • 60 mm
  • 80 mm
  • 100 mm trở lên

3. Thông số kỹ thuật chiều rộng và chiều dài phổ biến

Thick stainless steel sheets are typically supplied in standard plate dimensions.

Chiều rộng Chiều dài chung
1000 mm 2000 mm
1219 mm 2438 mm
1500 mm 3000 mm
1800 mm 6000 mm
2000 mm 6000 mm

Custom cutting and processing sizes are also common in industrial applications.

4. Hot Rolled vs Cold Rolled Thickness Range

Thép không gỉ cán nguội

  • Usually produced from 0.3 mm đến 6 mm
  • Better surface finish and dimensional accuracy
  • Common surface finishes: 2B, cử nhân, chải

Thép không gỉ cán nóng

  • Commonly produced above 3 mm thickness
  • Suitable for heavy plates and structural applications
  • Typical surface finish: Kết thúc số 1

Thicker stainless steel plates are generally manufactured using hot rolling processes.

5. Common Stainless Steel Grades for Thick Plates

Cấp Main Characteristics
304 Chống ăn mòn chung
304L Khả năng hàn tốt hơn
316 Cải thiện khả năng kháng clorua
316L Carbon thấp, chemical applications
310S Chịu nhiệt độ cao
2205 song công High strength and corrosion resistance

6. Industrial Applications of Thick Stainless Steel Plates

Thick stainless steel sheets are widely used in:

  • Bình chịu áp lực
  • Bể chứa hóa chất
  • Shipbuilding structures
  • Nền tảng ngoài khơi
  • Heavy machinery manufacturing
  • Bộ trao đổi nhiệt
  • Industrial pipelines
  • Structural engineering systems

7. Processing Characteristics of Thick Stainless Steel

As thickness increases, processing difficulty also increases.

Phương pháp xử lý thông thường:

  • Cắt plasma
  • Cắt tia nước
  • gia công CNC
  • Heavy plate welding
  • Rolling and forming

Key considerations:

  • Higher welding heat input required
  • Stronger forming equipment needed
  • Slower machining speed
  • Stress control during fabrication

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