WUXI HONGJINMILAI STEEL CO.,LTD
Professional stainless steel coils, sheets and pipes Manufacturer Customer is first ,integrity-based
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Product Description
304 stainless steel is a common material in stainless steel with a density of 7.93 g / cm³. It is also called 18/8 stainless steel in the industry. High temperature resistance of 800 ℃, with good processing performance and high toughness, widely used in industry and furniture decoration industry and food and medical industry.
304 is a versatile stainless steel that is widely used to make equipment and parts that require good overall performance (corrosion resistance and formability). In order to maintain the inherent corrosion resistance of stainless steel, steel must contain more than 18% chromium and more than 8% nickel.
| Chemical Composition% | |||||||||
| Material | C | Si | Mn | P | S | Cr | Ni | ||
| 304 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 18.0~20.0 | 8.0~10.5 | ||
| Mechanical Properties | |||||||||
| Material | Yield Strength N/mm2 | Tensile Strength N/mm2 | Elongation (%) | ||||||
| 304 | ≥205 | ≥515 | ≥40 | ||||||
1D—The surface has discontinuous particles, which is also called matte. Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling.
2D—Slightly shiny silver-white. Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling.
2B—Silver white and better gloss and flatness than 2D surface. Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + quenching and tempering rolling.
BA—The surface gloss is excellent and has a high reflectivity, just like the mirror surface. Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + surface polishing + quenched and tempered rolling.
No.3—has better gloss and rough surface. Processing technology: Polishing and tempering rolling of 2D products or 2B with 100 ~ 120 abrasive materials.
No.4—has better gloss and fine lines on the surface. Processing technology: Polishing and tempering rolling of 2D products or 2B with 150 ~ 180 abrasive materials.
HL—Silver gray with hair streaks. Processing technology: Polish the 2D product or 2B product with a suitable size of abrasive material to make the surface appear continuous grain.
MIRROR—is in a mirror state. Processing technology: 2D or 2B products are ground and polished to a mirror effect with a suitable abrasive material.
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