Alloy 31
Short Description:
Alloy 31 is a high‑alloy super‑austenitic iron‑nickel‑chromium‑molybdenum alloy with nitrogen and copper additions. It fills the performance gap between super‑austenitic stainless steels and premium nickel‑base corrosion‑resistant alloys. It was engineered for severe corrosive environments containing chlorides, sulfuric acid, phosphoric acid and mixed oxidizing‑reducing media, with an operating temperature range from ‑196 °C up to approximately 450 °C If you are planning to buy alloy 31 China...
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Alloy 31 is a high‑alloy super‑austenitic iron‑nickel‑chromium‑molybdenum alloy with nitrogen and copper additions. It fills the performance gap between super‑austenitic stainless steels and premium nickel‑base corrosion‑resistant alloys. It was engineered for severe corrosive environments containing chlorides, sulfuric acid, phosphoric acid and mixed oxidizing‑reducing media, with an operating temperature range from ‑196 °C up to approximately 450 °C
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| Chemical Composition: | ||||||
| Grade | % | Ni | Cr | Mo | N | Fe |
| Alloy31 | Min | 30 | 26 | 6 | 0.15 | Rest |
| Max | 32 | 28 | 7 | 0.2 | ||
| C | Mn | Si | S | Cu | P | |
| - | - | - | 3 | 1 | ||
| 0.015 | 2 | 0.3 | 0.01 | 1.4 | 0.02 | |
| Physical Performance: | ||||||
| Density | 8.1g/cm3 | |||||
| melting point | 1350-1370 | |||||
| Heat Treatment | T*S | Y*S | El | |||
| Rm N/mm2 | RP0.2N/mm2 | A5 % | ||||
| Solution | 650 | 350 | 35 | |||
Application:
Chemical and petroleum chemical engineering, environmental engineering and industrial fields such as oil and gas production
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