Mark 03H20N16AG6 refers to the chrome-nickel-manganese austenitic steels. Smelted in electric arc furnaces. Production is carried out according to the specifications and 14−1-3291−81 14−1-2922−80. This steel is used in cryogenic engineering in the manufacture of welded large-sized vessels, which are under pressure for a long time with the periodic change tº from 20 ° C to -250 ° C.
The percentage of
Mechanical properties at t = 20 ° C
|TU||products||σ 0,2, N / mm²||σ in N / mm²||δ 5%||KCV,|
J / cm²
|14−1-2922−80||rods||350−370||650−670||> 30||> 120|
|14−1-3291−81||sheets, hot-rolled||> 370||> 670||-||-|
Mechanical properties at low (cryogenic) tº (bars Ø 16 mm, in water quenching process from 1000 ° C)
|es t, ° C||σ 0,2, N / mm²||σ in N / mm²||δ 5%||ψ,%||KCU, J / cm 2||KCV, J / cm ²|
Mechanical properties at high tº (16 mm sheet, the water-hardened at 1050 ° C)
|es t, ° C||σ 0,2, N / mm²||σ in N / mm²||δ 5%||ψ,%||n, of|
Mechanical properties regardless of the degree of cold plastic deformation (a sheet of 3 mm, after quenching in water at 1000 ° C)
|The degree of compression,%||σ 0,2, N / mm²||σ in N / mm²||δ 5%||The degree of compression,%||σ 0,2, N / mm²||σ in N / mm²||δ 5%|
Physical properties at 20 ° C
The density is 7.8 g / cm3; the specific heat of 481 J / (kg · K); modulus 19.6×10−4 N / mm2; the temperature coefficient of linear expansion α = 16,1×10−6 / ° C. Thermal conductivity at 100 ° C = 17,5 W / (m · K);
In the hardened condition steel is resistant to corrosion, not only a weakly acidic media, but also in mildly and in industrial condensate. In 15−55% HNO3 solution, its resistance similar to steel H18N10.
Hot deformation occurs at t ° 1200−900 ° C. Steel stamped easily as hot and cold in the states. Due to the tendency to strain hardening during cold forging greater effort is necessary.
Steel welded by electric arc method of manual or automatic submerged arc automatic TIG welding. Heat treatment of the welds is not required.
The properties of welded joints made arnonodugovoy manual welding (sheet Tolya 16 mm).
|es t, ° C||es t, ° C||es t, ° C||es t, ° C||σ in N / mm²||σ in N / mm²||σ in N / mm²||σ in N / mm²||KCU, J / cm 2||KCU, J / cm 2||KCU, J / cm 2||KCU, J / cm 2||The angle of bend, deg.|
All submitted 03H20N16AG6 rental brand certified. The technical documentation includes data on the chemical composition, limiting the percentage of impurities; mechanical properties of products. We can buy in bulk, any semi-finished products for large-scale productions. We also offer optimal conditions for retail customers. High level of service and efficiency of service are the face of our company.
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