4mm Stainless Plate

أ 4مم لوحة الفولاذ المقاوم للصدأ is typically classified as المدرفلة على الساخن (الموارد البشرية) rather than cold rolled (سي آر).

• In industry practice, cold rolled stainless steel is mainly used for thin sheets
• Hot rolled stainless steel يستخدم ل medium to thick plates, including 4mm and above

Minimum Thickness of Hot Rolled Stainless Steel

Hot rolling is suitable for thicker materials, but modern rolling technology can achieve relatively thin gauges.

Typical Hot Rolled Thickness Range

النقطة الرئيسية

• ال minimum thickness of hot rolled stainless steel is حوالي 3.0 مم
• Below this thickness, it becomes difficult to control surface quality and dimensional accuracy

خاتمة:
أ 4mm stainless plate is within the standard hot rolled range, close to the lower limit of hot rolling.

Maximum Thickness of Cold Rolled Stainless Steel

Cold rolling is designed for precision thin materials, but it also has an upper thickness limit.

Typical Cold Rolled Thickness Range

النقطة الرئيسية

• ال maximum thickness of cold rolled stainless steel is generally around 3.0 مم
• In some advanced mills, it may reach ما يصل الى 4.0 مم, but this is uncommon and less economical

Why These Limits Exist

Hot Rolling Limitations

• At high temperatures, controlling flatness and surface quality becomes difficult for very thin sheets
• Oxide scale formation affects surface finish

Cold Rolling Limitations

• Requires high rolling force → difficult for thick materials
• Equipment and cost constraints limit thickness
• Increased internal stress in thicker cold rolled sheets

Hot Rolled vs Cold Rolled for 4mm Plate

Practical Recommendation

• 4mm stainless plate is almost always hot rolled
• If a smooth surface is required:
  • يستخدم تخليل + طحن
  • Or process from thicker hot rolled plate and finish mechanically