Nitronic 40 Stainless Steel
UNS S21900
Description
Nitronic 40 is a high-manganese stainless steel with great versatility, high strength and excellent resistance to corrosion at high temperatures. Nitronic 40 provides remarkably good elevated temperature properties and also retains its high strength and toughness at cryogenic temperatures. The product is readily weldable and can be fabricated and remains essentially non-magnetic at cryogenic temperatures or after up to 60% cold work. It has been used for chemical processing, pollution control equipment and various aircraft engine components.
Chemical Component
| Cr | Ni | P | S | Si | C | Mn | N | Fe |
|---|---|---|---|---|---|---|---|---|
| 19.00-21.50% | 5.50-7.50% | 0.060% max | 0.030% max | 1.00% max | 0.08% max | 8.00-10.00% | 0.15-0.40% | Balance |
Basic Information
| Items | Nitronic 40 Stainless Steel |
|---|---|
| Catalog | ACMA-Fe-A031 |
| Density | 0.283 lb/in3, 7. 83 g/cm3 |
| Thermal Conductivity, BTU/hr/ft2/° F (W/m·K) | At -290 ° F (-179 °C): 54 (7.8); At -100 ° F (-73 °C): 76 (10.9); At 200 ° F (93 °C): 96 (13.8); At 400 ° F (204 °C): 112 (16.1); At 600 ° F (316 °C): 126 (18.2); At 800 ° F (427 °C): 140 (20.2); At 1000 ° F (538 °C): 156 (22.5); At 1200 ° F (649 °C): 172 (24.8); At 1400 ° F (760 °C): 186 (26.8); At 1600 ° F (871 °C): 200 (28.8) |
| Magnetic Permeability, H = 200 Oersteds | Annealed: 1.004; 15% Cold Reduction: 1.003; 35% Cold Reduction: 1.005; 60% Cold Reduction: 1.012 |
Material Forms
Alfa Chemistry offers Nitronic 40 stainless steel in a variety of forms, including Coil, Sheet, Strip, Ribbon, Wire.
Mechanical Properties
- Mechanical properties at room temperature properties: annealed typical
| Ultimate Tensile Strength | Yield Strength | Elongation | Hardness |
|---|---|---|---|
| 112 KSI (772 MPa) | 68 Ksi (469 MPa) | 44% | Rb 96 |
Additional Properties
Corrosion Resistance: Refer to NACE (National Association of Corrosion Engineers) for recommendations.
Heat Treatment: Nitronic 40 is non hardenable by heat treatment.
Welding: For best results refer to: SSINA's "Welding of Stainless Steels and Other Joining Methods".
Specifications
Coil, Sheet, Strip, Ribbon, Wire: ASTM A276 (XM-10), ASTM A314 (XM10), ASTM A412 (XM-10), ASTM A473 (XM-10), ASTM A580 (XM-10), AMS 5575, AMS 5656, ASTM A240 (XM-11), ASTM A276 (XM-11), ASTM A314 (XM-11), ASTM A412 (XM-11), ASTM A473 (XM-11), ASTM A479 (XM-11), ASTM A580 (XM11)
Applications
- Aircraft engine components
- Chemical process equipment
- Application where low magnetic permeability is required even after severe cold work.
- Pollution control equipment
- Ducting
* Technical data included herein should be used as a guideline only, and should not be construed as maximum or minimum values for specification or for final design, or for a particular use or application. The data may be revised anytime without notice.
You Want It? We Got It!
Alfa Chemistry is a manufacturer of standard & custom specialty metals & alloys. We stock a wide variety of alloys in different shapes and specifications. If you can't find the product or specification you need, please contact us directly.
Contact Us