Martensitic 9Cr-1Mo steel P91
Purchase and sale of P91 scrap and turnings (9Cr-1Mo steel for power plants) in regular quantities for European consumers. Fast quotations and collection across the whole territory.
Modified martensitic 9Cr-1Mo alloy steel (V-Nb-N), designed for high-temperature and high-pressure service. Markets: thermal power plants, boilers, steam piping, petrochemical plants.
- Forms scrap · tube cut-offs · turnings · offcuts
- Density ~7.77 g/cm³ (indicative)
- Rm ≥ 585 MPa
Main elements
| Chromium (Cr) | 8.0 – 9.5 % |
|---|---|
| Molybdenum (Mo) | 0.85 – 1.05 % |
| Vanadium (V) | 0.18 – 0.25 % |
| Niobium (Nb) | 0.06 – 0.10 % |
| Manganese (Mn) | 0.30 – 0.60 % |
| Carbon (C) | 0.08 – 0.12 % |
| Nitrogen (N) | 0.030 – 0.070 % |
| Iron (Fe) | balance |
Indicative values according to ASTM A335 / EN 10216-2 (Grade 91). Martensitic steel for high-temperature applications, NOT a high-speed steel; composition certified for each batch.
Physical and mechanical data
| Density | ~7.77 g/cm³ (indicative) |
|---|---|
| Tensile strength Rm | ≥ 585 MPa (typ. 585 – 760) |
| Yield strength Rp0.2 | ≥ 415 MPa |
| Hardness (quenched and tempered) | ≤ 250 HB |
| Continuous service | up to ~600 °C (indicative) |
| Structure | tempered martensite (normalised + tempered) |
Indicative values for the normalised and tempered condition; service properties depend on the heat treatment and the service temperature.
Where our P91 ends up.
Thermal power plants
Superheaters, reheaters and boiler headers.
Steam piping
High-pressure and high-temperature steam lines.
Petrochemical and refining
Tubes and components for high-temperature processes.
Recovery at steel mills
Charge for remelting chromium-molybdenum alloyed steels.
We collect P91 in every form.
Tube cut-offs
Drops and cut-offs of decommissioned piping and headers.
Bulk scrap
Offcuts, flanges and components from overhauled plants.
Turnings and chips
Machining chips from machine shops.
Have P91 to sell?
Send us the material, approximate quantity and collection area: we will reply with a fast and competitive quotation.
Tel +41 91 9856992
Mobile +39 3494906948
contacts@giulianimetalli.com