In stainless steel, surface finish (matte, polished, brushed, mirror) affects price and application just as much as grade does. Learn the finish types and how to guide customers in choosing.
In carbon steel, no one cares about surface appearance; but in stainless steel, which is often used for visible and decorative applications, surface finish is sometimes as important as the grade itself and directly affects the price and suitability for the customer’s project.
Finish, the Second Dimension of Stainless Steel Quality
When a customer wants stainless steel, the grade alone is not enough; you need to know what kind of surface they want. A ۳۰۴ sheet can have a simple matte finish or a mirror-like, glossy surface, and these two have completely different prices and applications. For visible decorative applications, finish is decisive.
In stainless steel, surface finish affects price and application just as much as grade.
Common Types of Finish
| Finish | Appearance | Application and Price |
|---|---|---|
| 2B | Smooth and slightly matte | General and industrial applications; economical and basic |
| BA (glossy) | Glossy and smooth | Applications that require moderate gloss |
| Brushed (No.4/Negین) | Uniform fine lines, matte-glossy | Facades, elevators, equipment; hides scratches |
| Mirror | Completely glossy and reflective | Visible decorative applications; the most expensive |
Why You Should Not Forget to Ask About Finish
If a customer wants a brushed finish for an elevator facade and you provide a simple 2B, the product will not have the appearance they want. Conversely, selling an expensive mirror finish for a concealed industrial project is an unnecessary expense. Asking about finish, just like asking about grade, is part of a professional sale.
A salesperson who correctly asks the customer about both grade and finish delivers exactly what the customer’s project requires—not something inferior and not something more expensive than necessary.
How to Check the Finish Before Removing the Protective Film
Most stainless steel sheets with high-end finishes, such as brushed or mirror, are supplied with a layer of protective plastic film to prevent scratches. Not removing this film during inspection leaves room for mistakes; there may sometimes be a scratch or stain beneath the film that will not be noticed until installation. It is better to remove a corner of the film at the time of delivery and view the actual surface, rather than relying only on the finish label on the package.
Frequently Asked Questions
فینیش 2B در استیل یعنی چه؟
2B رایج‌ترین فینیش ورق استیل است؛ سطحی نسبتاً صاف و کمی مات که برای بیشتر مصارف عمومی و صنعتی مناسب است و پایهٔ بسیاری از فینیش‌های دیگر محسوب می‌شود.
تفاوت فینیش خط‌دار (برس‌خورده) و آینه‌ای چیست؟
فینیش خط‌دار (No.4 یا نگین) سطحی با خطوط ریز یکنواخت و ظاهر مات‌براق دارد که خش را بهتر پنهان می‌کند؛ فینیش آینه‌ای سطحی کاملاً براق و انعکاسی است که برای مصارف تزئینی نمایان به‌کار می‌رود و گران‌تر است.
چرا فینیش روی قیمت اثر می‌گذارد؟
چون هر فینیش مرحلهٔ فرآوری متفاوتی دارد؛ فینیش آینه‌ای بیشترین کار و در نتیجه بیشترین قیمت را دارد، در حالی که 2B ساده‌تر و اقتصادی‌تر است.
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