Wire, rod, tube made of X6CrNiTi18-10, aisi 321
|Grade||analogue||W. Nr.||Aisi Uns||En||Order|
|08Х18Н10Т||EI914||~1.4541||~321||X6CrNiTi18-10||Buy from stock, view availability|
X6CrNiTi18−10 alloy relates to chrome-nickel steels of austenitic class. In comparison to steels X12CrNiTi18−10, X10CrNiTi18−10, it possesses high resistance to intercrystalline corrosion in industrial environment. It is applied in manufacture of welded constructions that operate in temperature range of -196 to +600 in corrosive environments without pressure limits.
Percentage composition of alloy, GOST 5632−72
|basis||17 — 19||≤ 0,08||≤ 2||≤ 0,02||≤ 0,035||9 — 11||≤ 0,3||5С-0,7||≤ 0,8|
Available mill-products: rod, pipe, wire, sheet, strip.
Physical properties at t° of 20°С:
— Specific weight is 7,9 g/cm3
— Heat conductivity of steel (temperature is 20°С) is 0,134 10² V/(m К).
— Module of elasticity is 17,8 10 — 4 N/mm2
— Unit-area resistance is 0,8 Ohm-mm2/m;
— Hardness is 200 HB MPa -1
— Specific heat capacity is 0,504 103, J/(kg К);
— Magnetic permeability is 1,255 micro-tesla/m in H field of 500
Starting temperature of plastic deformation is 1170 °C and finishing is about 900 °C. This steel is satisfactorily welded by manual or automatic welding under flux. There are used electrodes with wire core er 308lsi during manual electric-arc welding. During atomatic welding, there are used the same residual elements that are utilized at welding of steels X12CrNiTi18−10, X10CrNiTi18−10. To protect welding seams, there is applied finishing heat treatment.
Steel of X6CrNiTi18−10 grade is smelted in open electric-arc furnaces according to the following GOST: 18 907−73, 5632−72; 4405−75, 5949−75; 5582−75, 9940−81, 25 054−81. This grade is classified as a stainless corrosion resistant simple heat-resistant steel. It complies with the most severe requirements of GOST. It can be easily processed by cutting. This expands opportunities for its application.
Manufacture of welded constructions that operate in a temperature range of -196 +600°С in highly-corrosive environments without pressure limits. It is used in welding of tanks that operate in solutions of phosphorus, 55% H2 SO4, spirit of verdigris and similar aggressive environments up to a temperature of 80 °C. It is also utilized in equipment that is intended for making of mineral fertilizers, welding wire, welding electrodes, repair of welding compositions of tools that work in radioactive environment. X6CrNiTi18−10 steel is applied as a means of clad layer in installations for production of ethylene, ammonia, carbon disulfide and other chemical elements.
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