Alloy 02X25N22AM2-PT
Technical characteristics
High-alloyed steel 02Х25Н22АМ2-ПТ is melted in plasma furnaces using special charge materials. The combination of high corrosion resistance and strength allows to use it instead of 03X17H14MZ steel which increases reliability, service life of equipment and ensures lower metal consumption. At temperature from -70° to +200° the alloy can withstand pressure up to 200 N/mm2. It is advisable to use it for work in nitric, phosphoric and sulfuric environments, as well as instead of steel grade X17N14M2 (3) T - under conditions of pitting corrosion.
Application
Production of welding equipment for the synthesis of acids of high concentration, production of mineral fertilizers, nitrophos, phosphoric acid and other compounds that are characterized by high aggressiveness.
Percentage composition:
| Fe | Cr | C | Mo | Ni | N | Mn | P | Si | S |
|---|---|---|---|---|---|---|---|---|---|
| Basis. | 24 - 26 | ≤0,02 | 2 - 2,5 | 21 - 23 | 0,1 - 0,14 | 1,5 - 2 | ≤0,020 | ≤0,4 | ≤0,015 |
Production
Production of 02Х25Н22АМ2-PT alloy is regulated by the following technical specifications: 14-134-277-91; 14-1-5072-91; 14-1-5203-93; 14-159-252-95, melted in electric arc furnaces. It is classified as stainless corrosion-resistant ordinary heat-resistant and heat-resistant steel. Refers to the group of steels of austenitic class.
The characteristics of the alloy at 20 ° C
- Thermal conductivity 0.134 - 10² W/(m - K)
- Density 7.98 g/cm3
- Modulus of elasticity 17.8 - 10 - 4 N/mm2
- Hardness 200 NV MPa-1
- Specific resistance 0.75 Ohmxmm2/m
- The magnetic permeability in the 500 E field is 1.255 microTesla/m
Technological processing
The temperature for stamping, rolling and forging is 1170 °C at the start of the process and about 900 °C when finished. This grade is relatively easy to cut. It is welded by argon arc manual welding. In the process of manual arc welding, electrodes with wire rod Sv-01H23N23MZTZ are used. This type of filler material is also used in automatic arc and argon arc welding. Final heat treatment is used to protect welds.
Furnizor
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