Sheet, circle, wire NP1A - nickel 205
Alloy NP1A
Nickel-based alloy of NP1A grade is used in the manufacture of welded chemical equipment required in the production of liquid chlorine, chlorine, caustic soda, etc. The density of this alloy is 8.9 g/cm³; and the thermal conductivity coefficient is λ = 0.92 - 100, W/(m - K). Recommended operating parameters: pressure not more than 1.6 N/mm²; temperature from -70 to 500 °C. The following specifications are provided for NP1A alloy: 48-0814-11/0-83; 14-3-1591-88; 48-0815-84-92; 48-0815-80-92.
Chemical composition:
| C | Cu | Fe | Mg | Mn | Ni | S |
|---|---|---|---|---|---|---|
| ≤0,031 | ≤0,004 | ≤0,018 | ≤0,003 | ≤0,003 | Principal | ≤0,002 |
Mechanical properties at 20 °С
| TU | Products | σw, N/mm² | σt, N/mm² | δ, % | ψ, % |
|---|---|---|---|---|---|
| >TU 48-0815-80-92 | Cold-rolled sheets (annealed) | 430 | _ | 25 | |
| As per TU 48-0815-84-92 | Hot-rolled sheets and plates | 372 | _ | 25 | _ |
| According to TU 14-3-1591-88 | Tubes: | ||||
| hot-pressed | 323 | 196 | 42 | 85,6 | |
| Cold-deformed | 382 | 196 | 40 | - | |
| TU 48-0814-11/0-83 | Cold-deformed pipes | 392 | - | 25 | - |
Note: the mechanical properties of the plates are optional. For nickel NP2 recommend heating at 620-700 ° C. exposure 3 min/mm thickness, but not less than 30 min, cooling in air.
Mechanical properties at room temperature as well as elevated temperature
| tisp | σ in, N/mm² | σ0,2, N/mm² | δ, % | >tisp | σ in, N/mm² | σ0,2, N/mm² | δ, % |
|---|---|---|---|---|---|---|---|
| 20 °С | 430 | - | - | 300 °С | 392 | - | - |
| 100 °С | 392 | - | - | 400 °С | 314 | - | - |
| 200 °С | 392 | - | - | 500 °С | 265 | - | - |
| 100 °С | 416 | 29 835 400 °С30 020 043 | |||||
| 300 °С | 366 | 251 | 44 | 500 °С | 263 | 237 | 33 |
| 20 °С | 323/382 | - | - | 400 °С | 288 | - | - |
| 100 °С | 357 | - | - | 500 °С | 225 | - | - |
| 200 °С | 350 | - | - | 600 °С | 166 | - | - |
| 300 °С | 337/382 | - | - |
Corrosion-resistant alloy NP1A
- In cold and hot alkaline and neutral salt solutions (nitrites, carbonates, chlorides, sulphates, acetates) that do not have oxidizing properties;
- in dilute non-oxidizing inorganic, organic acids at low or medium temperatures;
- in contact with hydrogen, fluorine, dry chlorine, hydrogen chloride or hydrogen fluoride up to 540 °C; in contact with dry sulphur dioxide up to t° 320 °C. In potassium and sodium hydroxyls up to t° 350 °C.
Welding
Vessels and appliances made of nickel are welded by manual argon-arc welding with a non-consumable electrode, as well as by manual arc welding. During welding, it is necessary to protect the weld and the surrounding area from the air. During argon-arc welding welding welding wire NMZ ATK-0,15-2.5-0,15 (TU 48-21-284-73) is used as filler material. Welding mode: 40-120 A for thickness of 1-4 mm, 180-250 A for thickness of 6-12 mm. Welded joints made by manual argon-arc welding with a non-consumable electrode have the following mechanical properties: σ0,2 = - 225 N/mm2, σv = 420 N/mm2, KCU = 130 J/cm².
Delivery
All the presented products of grade NP1A are certified. Technical documentation includes data on chemical composition, limiting percent of impurities and mechanical properties of products. From us you can buy in bulk any semi-finished products for large-scale production. We also offer optimum conditions for retail buyers. High level of service and prompt service is the face of our company.