Verschillende soorten roestvrij staal hebben verschillende samenstellingen. Hetzelfde type roestvrij staal kan variaties hebben door de toevoeging van sporenelementen.
Deze variaties verbeteren doorgaans specifieke eigenschappen, zoals lasbaarheid, corrosiebestendigheid, hardheid of verwerkingsprestaties, door het koolstofgehalte aan te passen of specifieke legeringselementen toe te voegen om aan verschillende toepassingsvereisten te voldoen.
They exhibit their strength, corrosion resistance, weldability, and magnetism characteristics, making them suitable for a wide range of industrial applications.
The diagram on the right shows the relationship between stainless steel grades.
Let’s continue learning about the element content of stainless steel.
Stainless Steel Composition Metallurgy Tree
Samenstelling van roestvrij staal
| Stainless Steel Type | Variant | Cr (%) | Ni (%) | Ma (%) | C (%) | Other Key Elements | Belangrijkste kenmerken |
| Austenitisch | 304 | 18-20 | 8-10.5 | / | ≤0,08 | / | Excellent corrosion resistance and formability, suitable for food processing, chemical industries, etc. |
| Austenitisch | 304L | 18-20 | 8-12 | / | ≤0,03 | / | Low-carbon version of 304, less prone to intergranular corrosion during welding. |
| Austenitisch | 304H | 18-20 | 8-10.5 | / | 0.04-0.10 | / | High-carbon version of 304, suitable for high-temperature environments, higher strength. |
| Austenitisch | 316 | 16-18 | 10-14 | 2-3 | ≤0,08 | / | Increased molybdenum content, improved chloride corrosion resistance, suitable for marine environments and chemical processing equipment. |
| Austenitisch | 316L | 16-18 | 10-14 | 2-3 | ≤0,03 | / | Low-carbon version of 316, better weldability, and corrosion resistance. |
| Austenitisch | 316Ti | 16-18 | 10.5-14 | 2-3 | 0.04-0.10 | Ti: 0.5% | Titanium-stabilized, enhanced resistance to intergranular corrosion, suitable for high-temperature environments. |
| Ferritic | 430 | 16-18 | / | / | ≤0,12 | / | Good oxidation resistance and formability, suitable for home appliances, automotive trim, etc. |
| Ferritic | 430F | 16-18 | / | / | ≤0,12 | S added | Increased sulfur content, improved machinability, suitable for automatic lathes. |
| Ferritic | 409 | 10.5-11.75 | / | / | ≤0,08 | / | Economical stainless steel, good heat resistance, suitable for automotive exhaust systems. |
| Ferritic | 409L | 10.5-11.75 | / | / | ≤0,03 | / | Low-carbon version of 409, better weldability, suitable for automotive exhaust systems. |
| Martensitic | 410 | 11.5-13.5 | / | / | ≤0,15 | / | High strength and wear resistance, suitable for tools, bearings, etc. |
| Martensitic | 410S | 11.5-13.5 | / | / | ≤0,08 | / | Low-carbon version of 410, improved weldability and toughness. |
| Martensitic | 420 | 12-14 | / | / | 0.15-0.40 | / | Excellent polishing properties, suitable for surgical instruments, cutting tools. |
| Martensitic | 420J2 | 12-14 | / | / | 0.26-0.40 | / | Increased carbon content, higher hardness and wear resistance, suitable for tools, bearings. |
| Martensitic | 440C | 16-18 | / | / | 0.95-1.20 | / | Very high hardness and wear resistance, suitable for high-precision bearings, tools. |
| Martensitic | 440A | 16-18 | / | / | 0.60-0.75 | / | Lower carbon content, better corrosion resistance, suitable for tools and instruments. |
| Duplex | 2205 | 22-23 | 4.5-6.5 | 3-3.5 | ≤0,03 | / | High strength, excellent resistance to chloride stress corrosion cracking, suitable for marine and chemical processing applications. |
| Duplex | 2507 | 24-26 | 6-8 | 3-5 | ≤0,03 | / | Super duplex stainless steel, extremely high corrosion resistance and strength, suitable for oil, gas, and other extreme environments. |
| Precipitation Hardening | 17-4PH | 15-17.5 | 3-5 | / | ≤0.07 | Cu: 3-5%, Nb: 0.15-0.45% | High strength obtained through aging treatment, suitable for high-strength applications. |
| Precipitation Hardening | 15-5PH | 14.5-15.5 | 3.5-5.5 | / | ≤0.07 | Cu: 2.5-4.5%, Nb: 0.15-0.45% | Similar to 17-4PH, but with better toughness, suitable for applications requiring high strength and toughness. |
Waarom SSM uw vertrouwde leverancier is van roestvrijstalen producten
De juiste selecteren roestvrijstalen producten voor uw project is een cruciale beslissing, en bij SSM begrijpen we dat dit niet aan het toeval moet worden overgelaten. Wij gaan verder dan alleen een leverancier zijn – wij zijn uw betrouwbare partner in het leveren van roestvrijstalen producten.
Neem vandaag nog contact met ons op voor een gratis offerte en ervaar het verschil van een samenwerking met echte experts op het gebied van metaalkwaliteit.
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