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304H
DSM
1.4948
304H
SUH304H
07Cr19
304H is often used in applications where both corrosion resistance and high-temperature strength are required. Common applications include industrial boilers, pressure vessels, heat exchangers, and components for the chemical and petrochemical industries.
| DESCRIPTION | 304H stainless steel is a high-carbon variant of the widely used 304 stainless steel, which falls under the austenitic stainless steel category. The "H" in 304H denotes its higher carbon content. The standard composition of 304 stainless steel includes about 18% chromium and 8% nickel, providing excellent corrosion resistance and good formability. The addition of carbon in 304H enhances its high-temperature strength. | ||||||||
| 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 | |||
| High-Temperature Strength | The higher carbon content in 304H enhances its strength at elevated temperatures, making it suitable for applications involving high heat. | N/A | |||||||
| Weldability | 304H is generally weldable using common welding methods. However, care should be taken to use appropriate filler materials to maintain the desired properties, especially in high-temperature applications. | N/A | |||||||
| CORROSION RESISTANCE | Like standard 304 stainless steel, 304H offers excellent corrosion resistance in various environments. However, its resistance to corrosion may be slightly reduced compared to 304 in certain corrosive conditions due to the increased carbon content. | ||||||||
| 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. | |||||||||
Applications: 304H is often used in applications where both corrosion resistance and high-temperature strength are required. Common applications include industrial boilers, pressure vessels, heat exchangers, and components for the chemical and petrochemical industries.
It's crucial to consider the specific requirements of your application when choosing a stainless steel grade, as different compositions are better suited for particular conditions.
| DESCRIPTION | 304H stainless steel is a high-carbon variant of the widely used 304 stainless steel, which falls under the austenitic stainless steel category. The "H" in 304H denotes its higher carbon content. The standard composition of 304 stainless steel includes about 18% chromium and 8% nickel, providing excellent corrosion resistance and good formability. The addition of carbon in 304H enhances its high-temperature strength. | ||||||||
| 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 | |||
| High-Temperature Strength | The higher carbon content in 304H enhances its strength at elevated temperatures, making it suitable for applications involving high heat. | N/A | |||||||
| Weldability | 304H is generally weldable using common welding methods. However, care should be taken to use appropriate filler materials to maintain the desired properties, especially in high-temperature applications. | N/A | |||||||
| CORROSION RESISTANCE | Like standard 304 stainless steel, 304H offers excellent corrosion resistance in various environments. However, its resistance to corrosion may be slightly reduced compared to 304 in certain corrosive conditions due to the increased carbon content. | ||||||||
| 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. | |||||||||
Applications: 304H is often used in applications where both corrosion resistance and high-temperature strength are required. Common applications include industrial boilers, pressure vessels, heat exchangers, and components for the chemical and petrochemical industries.
It's crucial to consider the specific requirements of your application when choosing a stainless steel grade, as different compositions are better suited for particular conditions.
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