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|
Grade |
Code |
UNS |
Nickel Alloys |
|
NITRONIC 50 |
XM-19 |
S20910 |
Nickel Alloy Specification
NITRONIC 50 / UNS S20910 / XM-19 is manganese alloyed austenitic stainless steel with improved corrosion resistance compared to AISI 316L due to increased chromium content plus about twice the yield strength of the same at room temperature. Unlike many austenitic alloys, NITRONIC 50 does not become magnetic when cold formed. NITRONIC 50 Stainless has very good mechanical properties at both elevated and sub-zero temperatures.
Chemical Composition (XM-19)
|
Ni % |
Cr % |
C % |
S % |
Mn % |
Si % |
Mo % |
Nb % |
V % |
Fe % |
|
11,50 – 13,50 |
20,50 – 23,50 |
0,06 max. |
0,03 max. |
4,00 – 6,00 |
1,00 max. |
1,50 – 3,00 |
0,10 – 0,30 |
0,10 – 0,30 |
Balance |
Mechanical Properties (Annealed)
|
Product Form |
Rp0.2, Mpa |
Rm, Mpa |
Elongation [%] |
Hardness[HB] |
|
Rod & Bar |
345 |
≥ 655 |
≥ 35 |
≤ 293 |
|
Typical |
420 |
730 |
50 |
201 |
|
High strength version* |
≥ 586 |
≥ 896 |
≥ 20 |
≤ 330 |
* Normal stock version
Suitable For
The combination of corrosion resistance and mechanical strength, XM-19 is utilized in marine hardware, pump shafting, petrochemical, pulp & paper, food processing and petroleum industries. Can also be used in “down hole” applications due to sulfide stress cracking resistance.
Remarks
Field service experience have shown that NITRONIC 50 stainless has excellent resistance to sulfide stress cracking in air conditions.
Specification
NITRONIC 50, XM-19, S20910
Norm
NACE Standard MR01-75/ ISO 15156-3
