BÖHLER P501
BÖHLER P501 is a highly corrosion-resistant, nitrogen-strengthened Cr-Ni-Mo-N steel that is characterised by its resistance to corrosion in seawater and very good resistance to intergranular corrosion and stress corrosion cracking. Due to the alloy design, the yield strength is significantly higher than that of a comparable Cr-Ni-Mo stainless steels and a stable austenitic microstructure is achieved, so that the steel remains non-magnetisable even after cold forming and has the lowest magnetic permeability. In addition to its original application as a hull and structure for submarines, BÖHLER P501 is also used for magnetic shielding and components in the oil and gas industry, for example.
Available Product Shapes
Long Products: Presented data refer exclusivly to long products. Please observe the detailed explanations at the end of the data sheet (pdf).
Melting Route
Airmelted
Property Features
Non-magnetic austenitic steel. Resistance to seawater and intergranular corrosion. Weldable.
Material Numbers
- SEL
- 1.3964
- EN
- X2CrNiMoNNb21-16-5-3
- UNS
- S20910
Standards
- Others
- SEW 390
Chemical Composition
* Chemical Composition (Average %)
- C
- max. 0.030
- Si
- max. 1.0
- Mn
- 4.0 to 6.0
- P
- max. 0.025
- S
- max. 0.010
- Cr
- 20.0 to 21.5
- Mo
- 3.0 to 3.5
- Ni
- 15.0 to 17.0
- Nb
- max. 0.25
- N
- 0.20 to 0.35