Lembaran Baja Tahan Karat Canai Dingin Dalam Kumparan

Cold rolled stainless steel sheet in coil is produced by further processing hot rolled stainless steel through precision rolling at room temperature. The material is supplied in coil form, allowing continuous processing, pemotongan, and fabrication for industrial applications.

This product is widely used where tight tolerances, permukaan akhir yang halus, and consistent mechanical properties diperlukan.

Cold Rolling Process of Stainless Steel

The cold rolling process involves multiple controlled steps to improve surface quality and dimensional accuracy.

1. Persiapan Gulungan Canai Panas

• Raw material starts as hot rolled stainless steel coil (black coil)
• Surface contains oxide scale and requires cleaning

2. Pengawetan

• Acid treatment removes oxide scale
• Produces a clean metallic surface for further rolling

3. Penggulungan Dingin (Room Temperature Reduction)

• Material is passed through rolling mills under high pressure
• Thickness is reduced with high precision
• Strength increases due to strain hardening

4. Anil (Perlakuan Panas)

• Restores ductility lost during cold rolling
• Conducted in controlled atmosphere furnaces

5. Tiket Kulit / Temper Rolling

• Light rolling process improves:
  • Kebosanan
  • Permukaan akhir
  • Konsistensi mekanis

6. Penyelesaian Permukaan

• Final finishes include:
  • 2B (standard industrial finish)
  • BA (anil cerah, seperti cermin)
  • Brushed or polished surfaces

7. Slitting and Recoiling

• Coil is cut into required widths
• Recoiled for delivery or further processing

Key Characteristics of Cold Rolled Stainless Steel Coil

Cold rolling significantly enhances the performance of stainless steel.

1. Kualitas Permukaan Tinggi

• Mulus, membersihkan, and uniform surface
• Suitable for decorative and hygienic applications

2. Toleransi Dimensi Ketat

• Thickness accuracy typically within ±0.10 mm
• Ideal for precision fabrication

3. Increased Strength

• Work hardening improves:
  • Kekuatan hasil
  • Kekuatan tarik

4. Excellent Flatness

• Minimal waviness
• Better performance in laser cutting and stamping

5. Sifat mampu bentuk yang baik (After Annealing)

• Maintains ductility for:
  • Pembengkokan
  • Gambar yang dalam
  • Pembentukan

Typical Thickness and Width Range

Catatan:

• Most common thickness: 0.5 mm – 3.0 mm
• Standard widths: 1000 mm, 1219 mm, 1500 mm

Sifat Mekanik (General Range)

Values vary depending on grade (misalnya, 304, 316, 430).

Advantages Over Hot Rolled Stainless Steel

Aplikasi Khas

Cold rolled stainless steel coil is widely used in:

• Peralatan dan perlengkapan dapur
• Mesin pengolah makanan
• Dekorasi arsitektur
• Komponen otomotif
• Precision stamping parts
• Medical and pharmaceutical equipment