What is en 1.4408 material?
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If you are looking for a stainless steel casting material with excellent corrosion resistance and strength, you may have heard of EN 1.4408. EN 1.4408 is a casting alternative to wrought stainless steel 316 (EN 1.4401), which is commonly used in valves, pumps, marine components, and chemical equipment operating in corrosive environments.
What is en 1.4408 material?
EN 1.4408 is a cast stainless steel, also known as GX5CrNiMo19-11-2, which is similar to AISI 316 but is specifically designed for casting. It is an austenitic stainless steel with high resistance to corrosion and high-temperature oxidation due to its chromium, nickel, and molybdenum content. It is often used for components like valves and pumps in various industrial applications.
EN 1.4408 Chemical Composition (Typical Values)
The 2–3% Mo addition gives EN 1.4408 much better resistance to chloride-induced pitting corrosion compared with CF8 (304 equivalent).
| Element | % (by weight) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Silicon (Si) | ≤ 1.00 |
| Manganese (Mn) | ≤ 1.50 |
| Phosphorus (P) | ≤ 0.04 |
| Sulfur (S) | ≤ 0.03 |
| Chromium (Cr) | 17.0 – 19.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 |
| Iron (Fe) | Balance |
Mechanical Properties of EN 1.4408 Stainless Steel
These values apply to cast and solution-annealed materials tested per EN 10283 or ASTM
| Property | Typical Value |
|---|---|
| Density | 7.9 g/cm³ |
| Tensile Strength | 485 – 690 MPa |
| Yield Strength (0.2% offset) | ≥ 170 MPa |
| Elongation (in 50 mm) | ≥ 30% |
| Hardness (HB) | ≤ 200 |
| Impact Strength (Charpy V-notch) | ≥ 60 J (at room temperature) |
What are the differences between 1.4408 Material and 316L?
The main difference is that 1.4408 is the cast equivalent of 316 stainless steel (often designated as CF8M), while 316L is a low-carbon, wrought stainless steel. This means 1.4408 is manufactured by casting molten metal, while 316L is formed through other processes like forging or rolling. The casting process for 1.4408 may result in slightly different properties, such as potentially higher silicon and manganese content.
Is 1.4408 the same as CF8M?
Yes, 1.4408 is the same as CF8M, as 1.4408 is the European standard designation, and CF8M is the American Society for Testing and Materials (ASTM) designation for the same cast austenitic stainless steel. They are equivalent materials used for casting, with the same alloy composition, and are often seen together as CF8M (EN 1.4408).
What is CF8M en equivalent to?
CF8M is the cast equivalent of 316 stainless steel and is equivalent to EN 1.4408 or EN 1.4401 depending on the specific standard, though 1.4408 is the direct casting equivalent. Both CF8M and 316 stainless steel are molybdenum-bearing austenitic steels that offer enhanced corrosion resistance, particularly against pitting caused by chlorides.
How does EN 1.4408 compare with CF3M?
CF3M (316L equivalent) has lower carbon content and offers better weldability with reduced risk of carbide precipitation.
EN 1.4408 Stainless Steel Castings Price per kg
| Product | Size | Price Range (USD/kg) | Delivery |
|---|---|---|---|
| EN 1.4408 Valve Body Casting | 2" – 6" | $7.00 – $8.50 | 10–15 days |
| EN 1.4408 Pump Housing | Up to 100 kg | $6.50 – $8.00 | 12–18 days |
| EN 1.4408 Flange | DN 50 – DN 300 | $5.80 – $7.20 | In stock |
| EN 1.4408 Pipe Fitting | 1" – 8" | $5.50 – $6.80 | In stock |
Tip for Buyers: When sourcing EN 1.4408, always request a Mill Test Certificate (EN 10204 3.1) and solution annealing records to ensure corrosion performance.
Gnee offers high-quality 1.4408 stainless steel castings that are dimensionally precise, corrosion-resistant, and durable. Our products typically include castings, flanges, fittings, and valve assemblies.
With over 18 years of export experience, we offer highly competitive prices and timely delivery to meet your industrial needs, ensuring you receive the most reliable and cost-effective solutions. Email: info@gneestainless.com
EN 1.4408 Stainless Steel Castings
| Product Form | Size Range | Surface Finish | Certification | Standards |
|---|---|---|---|---|
| Valve Bodies / Flanges | Up to 600 mm | Machined / Shot Blasted | EN 10204 3.1 | ASTM A351 CF8M, EN 10283 |
| Pump Housings / Impellers | Up to 100 kg casting weight | Pickled / Machined | PED 97/23/EC | NACE MR0175 |
| Fittings / Connectors | DN 15 – DN 300 | 2B / Machined | ISO 9001 | ASME B16.5 / B16.11 |
