1.4521 stainless steel, also known as X2CrMoTi18-2 or AISI 444, is a ferritic, molybdenum-containing stainless steel characterized by its high resistance to chloride-induced stress-corrosion cracking and excellent resistance to pitting and crevice corrosion. And it comes in a variety of forms, including sheet, plate, coil, rod, tube and fittings.
1.4521 stainless steel is equivalent to AISI 444 and the UNS designation S44400. It is also known by its European nominal designation, X2CrMoTi18-2.
| Grade : | X2CrMoTi18-2 | ||||
| Number: | 1.4521 | ||||
| Classification: | Ferritic stainless steel | ||||
| Density: | 7.7 g/cm ³ | ||||
| Standard: |
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Chemical composition % of steel X2CrMoTi18-2 (1.4521): EN 10088-2-2005
| C | Si | Mn | P | S | Cr | Mo | N | Ti |
| max 0.025 | max 1 | max 1 | max 0.04 | max 0.015 | 17 - 20 | 1.8 - 2.5 | max 0.03 | 0.15 - 0.8 |
| Properties | Metric | Imperial |
| Tensile strength | 415 MPa | 60200 psi |
| Yield strength (@strain 0.200%) | 275 MPa | 39900 psi |
| Elastic modulus | 200 GPa | 29000 ksi |
| Shear modulus | 80-83 GPa | 11600-12000 ksi |
| Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break | 0.2 | 0.2 |
| Hardness, Rockwell B | 95 | 95 |
What is the difference between 1.4521 and 1.4404 stainless steel?
1.4521 is an ultra-low carbon and nitrogen, highly corrosion-resistant ferritic stainless steel containing 18% chromium and 2% molybdenum, stabilized by additions of niobium or titanium. It features high yield strength, excellent thermal conductivity, low thermal expansion coefficient, and resistance to high chloride corrosion. It is suitable for applications such as heat exchange, water treatment, food processing, and automotive exhaust systems.
1.4404 is a molybdenum-containing austenitic stainless steel with a carbon content of ≤0.03%. The inclusion of nickel and molybdenum provides excellent corrosion resistance, weldability, and high-temperature resistance up to 925°C. It is commonly used in food preparation, chemical processing, and pharmaceutical manufacturing.
who choose us?
If you have a project need for 444 1.4521 stainless steel bar, we welcome your order. GNEE has a large inventory of popular products for you to choose from. We process these bars into a variety of practical product forms, including sheet, coil, tube, bar, and wire. For detailed chemical composition and free samples, please contact our factory today. We offer competitive pricing and excellent service.
Email: info@gneestainless.com
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