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| DESCRIPTION | This is the basic austenitic stainless steel 18/8, the most widely used. It exhibits good properties regarding corrosion resistance, forming and weldability. | ||||||||
| CHEMICAL COMPOSITION | C | Si | Mn | P | S | Cr | Ni | 列1 | 列2 |
| ≤0.070 | ≤0.75 | ≤2.00 | ≤0.040 | ≤0.015 | 17.50-19.00 | 8.00-10.00 | |||
| APPLICATIONS | Tableware /Household appliances /Industry /Construction /decoration | ||||||||
| MECHANICAL PROPERTIES AFTER COLD ROLLING AND FINAL ANNEALING | Rp0.2 | > 230 N/mm2 | |||||||
| Rm | 540 - 750 N/mm2 | ||||||||
| Elongation | > 45% | ||||||||
| Hardness | < 200 HB | ||||||||
| PHYSICAL PROPERTIES | 20℃ | 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | |||
| Modulus of elasticity (GPa) | 200 | 194 | 186 | 179 | 172 | 165 | |||
| Mean coefficient of linear expansion between 20℃ (10-6 x K-1) and | - | 16 | 16.5 | 17 | 17.5 | 18 | |||
| Thermal conductivity (W/m·K) | 15 | 17 | 18 | 19 | 20.5 | 22 | |||
| Electrical resistivity (Ω·mm2/m) | 0.73 | 0.8 | 1 | 1.15 | 1.22 | 1.25 | |||
| WELDING | 304 is suitable for all conventional welding techniques.This grade does not require thermal treatment after welding. | N/A | |||||||
| PITTING CORROSION | 304 is successfully used in media where chloride concentration does not exceed 200 ppm. | N/A | |||||||
| CORROSION RESISTANCE | 304 shows good corrosion resistance in a wide range of applications. As an example, 304 exhibits corrosion rates lower than 0.10 mm/year in the following media: -20% acetic acid at 800C. -90% formic acid at 200C. -20% phosphoric acid at 600C. -20% nitric acid at 500C. -90% sulphuric acid at 200C. -Toluene. -Milk. -Beer. -Juice. -Wine. | ||||||||
| SURFACE CLEANING | Wash the surface with neutral soap and water applied with a cloth or a brush without scratching the stainless steel. Then, always rinse the stainless steel with water to remove completely the cleaning agent. Finally, it is recommended to dry the surface to preserve a good superficial condition. In severe environments, a frequent cleaning is strongly recommended. | ||||||||
| SPECIFICATIONS | 304 can be delivered according to EN, ASTM, ASME, AMS, QQS and MILS standard requirements. | ||||||||
| 304 is approved in compliance with: -PED (Pressure Equipment Directive), DGRL 97/23/EG according to EN 10028-7 and AD2000 Merkblatt W2 and W10. -Lloyd´s Register of Shipping. | |||||||||
| It complies with the European Directives: -Food industry, RE 1935/2004. -Hexavalent chromium, ROHS. -Electrical instruments, ROHS. | |||||||||
| DESCRIPTION | This is the basic austenitic stainless steel 18/8, the most widely used. It exhibits good properties regarding corrosion resistance, forming and weldability. | ||||||||
| CHEMICAL COMPOSITION | C | Si | Mn | P | S | Cr | Ni | 列1 | 列2 |
| ≤0.070 | ≤0.75 | ≤2.00 | ≤0.040 | ≤0.015 | 17.50-19.00 | 8.00-10.00 | |||
| APPLICATIONS | Tableware /Household appliances /Industry /Construction /decoration | ||||||||
| MECHANICAL PROPERTIES AFTER COLD ROLLING AND FINAL ANNEALING | Rp0.2 | > 230 N/mm2 | |||||||
| Rm | 540 - 750 N/mm2 | ||||||||
| Elongation | > 45% | ||||||||
| Hardness | < 200 HB | ||||||||
| PHYSICAL PROPERTIES | 20℃ | 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | |||
| Modulus of elasticity (GPa) | 200 | 194 | 186 | 179 | 172 | 165 | |||
| Mean coefficient of linear expansion between 20℃ (10-6 x K-1) and | - | 16 | 16.5 | 17 | 17.5 | 18 | |||
| Thermal conductivity (W/m·K) | 15 | 17 | 18 | 19 | 20.5 | 22 | |||
| Electrical resistivity (Ω·mm2/m) | 0.73 | 0.8 | 1 | 1.15 | 1.22 | 1.25 | |||
| WELDING | 304 is suitable for all conventional welding techniques.This grade does not require thermal treatment after welding. | N/A | |||||||
| PITTING CORROSION | 304 is successfully used in media where chloride concentration does not exceed 200 ppm. | N/A | |||||||
| CORROSION RESISTANCE | 304 shows good corrosion resistance in a wide range of applications. As an example, 304 exhibits corrosion rates lower than 0.10 mm/year in the following media: -20% acetic acid at 800C. -90% formic acid at 200C. -20% phosphoric acid at 600C. -20% nitric acid at 500C. -90% sulphuric acid at 200C. -Toluene. -Milk. -Beer. -Juice. -Wine. | ||||||||
| SURFACE CLEANING | Wash the surface with neutral soap and water applied with a cloth or a brush without scratching the stainless steel. Then, always rinse the stainless steel with water to remove completely the cleaning agent. Finally, it is recommended to dry the surface to preserve a good superficial condition. In severe environments, a frequent cleaning is strongly recommended. | ||||||||
| SPECIFICATIONS | 304 can be delivered according to EN, ASTM, ASME, AMS, QQS and MILS standard requirements. | ||||||||
| 304 is approved in compliance with: -PED (Pressure Equipment Directive), DGRL 97/23/EG according to EN 10028-7 and AD2000 Merkblatt W2 and W10. -Lloyd´s Register of Shipping. | |||||||||
| It complies with the European Directives: -Food industry, RE 1935/2004. -Hexavalent chromium, ROHS. -Electrical instruments, ROHS. | |||||||||
