Alloy 02N18K9M5T-ID
Technical characteristics
Alloy 02N18K9M5T-ID belongs to the group of martensitic-aging steels. It is melted in the induction vacuum furnace. It is produced in accordance with the following specifications: 14-1-4896-90, 14-1-2227-77; 14-1-1531-75; 14-1-3039-80 and fully meets the strict requirements of the state standard. The following types of rolled products are produced: circle, pipe, wire, sheet, strip. During plastic deformation at the initial stage the temperature is 1170 °C, and by the end - about 900 °C. This steel is easily cutable and is used in the manufacture of high-stress parts, for bolts, axles, containers, studs
Percentage composition
| Co | C | Al | Fe | Ni | Mo | Mn | P | S | Ti | S |
|---|---|---|---|---|---|---|---|---|---|---|
| 8,5-9,5 | ≤0,02 | ≤0,15 | basis | 17,7-19 | 4,6-5,5 | ≤0,1 | ≤0,01 | ≤0,01 | 0,6-0,8 | ≤0,01 |
Physical properties at 20 °С
- Specific gravity 8.05 g/cm3
- Induction of saturation is 10-12 kGs
- Modulus of elasticity 18,6 - 10 - 4 N/mm2
- Specific electrical resistance 0.38 - 0.39 Ohmxmm2/m
- Steel hardness is 200 NV MPa-1.
- Temperature coefficient of linear expansion 10.1x10-6/°C
- The magnetic permeability in the field of 500 E is equal to 1.255 microTesla/m.
Production
Pipes are made both seamless - solid drawn and by welding - electrically welded. Circle is produced by forging metal to a specific preset shape, often used in the form of forgings,
- chemical composition of alloying elements;
- maximum impurity content;
- ultrasonic inspection for absence of cracks;
- allowable deviations in size, surface quality, curvature.
Welding
Available by automatic and manual argon arc welding. During manual argon-arc welding electrodes with wire rod of steels Св- 02Н18К9М5Т-ID are used.
Use
This steel shows high reliability, it is resistant to intergranular corrosion and to corrosion cracking in alkaline and chloride environments. The alloying process makes the steel more resistant to heat and enables parts for power installations. This steel has the balanced properties of heat resistance and heat resistance that have made it so popular. It is widely used for heavy-duty parts, bolts, axles, studs and other fasteners, as well as tanks in highly aggressive environments at temperatures up to 80°C.
Furnizor
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