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Nitronic 50 (XM19/ AMS 5764)
Technical Data Sheet
Nitronic 50 is a nitrogen-strengthened austenitic stainless steel that has properties that combine excellent strength, ductility, toughness, corrosion resistance and fabricability. Nitronic 50 is a very versitile and useful alloy due to it retaining its very good mechanical properties at both elevated and sub-zero temperatures. Also Nitronic 50 has outstanding corrosion resistance (greater than alloy 316 and 316L) and it is an effective alloy for use in the Petroleum, Chemical, Marine, Nuclear, Pulp and Paper, Textile, Food Processing industries.
| Chemical Composition Limits | ||||||||||||
| Weight% | C | P | Si | Ni | Nb (Cb) | N | Mn | S | Cr | Mo | V | Fe |
| Nitronic 50 | 0.06 max | 0.040 max | 1.00 | 11.5-13.5 | 0.10-0.30 | 0.20-0.40 | 4-6 | 0.030 max | 20.5-23.5 | 1.5-3.0 | 0.10-0.30 | Bal |
Typical Mechanical Properties
| Alloy | Condition | Tensile of Strength (ksi) | Yield Strength (ksi) | Elongation (%) |
Reduction of Area % | Hardness HRC |
| Nitronic 50 | Annealed AMS 5764 | 100 | 55 | 35 | 55 | >20 |
| Material is annealed at 1065°C to 1120°C (1950°F to 2050°F) | ||||||
Availability
Nitronic 50 is available as Bar (Bar Stock List), Wire, Sheet, Plate, Strip, Coil, Fasteners, Forgings and Forging Billets. For all stock availability contact Sales.
Nitronic 50 is also available strain-hardened for increased strength and hardness. Different levels of strength can be achieved as in the following table:
| Alloy | Strength Level | Diameter Range | Ultimate Tensile Strength ksi (min) | Yield Strength ksi (min) | Elongation (min) |
Reduction of Area (min) |
| Nitronic 50 HS | 1 | 0.125" - 4.00" | 110 | 90 | 35 | 55 |
| Nitronic 50 HS | 2 | 0.125" - 4.00" | 135 | 105 | 20 | 50 |
| Nitronic 50 HS | 3 | 0.125" - 3.50" | 160 | 130 | 15 | 45 |
| Nitronic 50 HS | 4 | 0.062" - 2.00" | 180 | 145 | 12 | 45 |
| Nitronic 50 HS | 5 | 0.062" - 1.50" | 200 | 180 | 10 | 45 |
Specifications
AMS 5764 Bar / Forgings / Rings
ASTM A314 / ASME SA314
ASTM A479 XM19
ASTM A276 XM19
ASTM A240 / ASME SA240
ASTM A412 / ASME SA412
ASTM A193 Grade B8R
ASTM A194 Grade B8
AWS A5.9- ER209 Weld wire
UNS S20910
* Nitronic® is a registered trademark of AK Steel
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Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.
