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Characteristics for grade     20848   ( 20848 )



      Grade :     20848   ( 20848 )
      Classification :   Electrotechnical unalloyed steel
      Equivalent grades:     Is absent



Chemical composition in % for grade   20848   ( 20848 )
C Si Mn
max   0.04max   0.3max   0.3


Magnetic properties for grade   20848   ( 20848 )
Assortment Dimension Hc μmax P1.0/50 P1.5/50 B100 B500 B1000 B2500 B5000 B10000 B30000
- mm A/m - W/kg W/kg A/m A/m A/m A/m A/m A/m A/m
Sheet 0.7 - 3.9 48 6       1.38 1.5 1.62 1.71 1.81 2.05


Technological properties for grade   20848   ( 20848 )
  Weldability: without limitations.



Types of delivery of grade   20848   ( 20848 )
B23 - Sheets and Strips
B33 - Sheets and Strips
B34 - Ribbons


Specification :
Mechanical properties :
sв - Tensile strength , [MPa]
sT - Yield stress, [MPa]
d5 - Specific elongation at fracture , [ % ]
y - Reduction of area , [ % ]
KCU - Impact strength , [ kJ / m2]
HB - Brinell hardness , [MPa]

Physical properties :
T - Test temperature , [Grade]
E - Young modulus , [MPa]
a - Coefficient of linear expansion (range 20o - T ) , [1/Grade]
l - Termal (heat) condition coefficient , [Watt/(m·Grade)]
r - Density , [kg/m3]
C - Specific heat ( range 20o - T ), [J/(kg·Grade)]
R - Electrical resistance , [Ohm·m]

Magnetic properties :
Hc - Coercive force [ A/m ]
μmax - Magnetic permeability [ ]
P1.0/50 - Maximum specific total loss at [ W/kg ]
B100 - Minimum magnetic flux density T for H, [ А/m ]

Weldability :
without limitations - welding is done without heating and subsequent heat treeting
limited weldability - welding is possible under heating up to 100-120 grade and subsequent heat treeting
hard weldability - obtaining the quality welding needs the additional operations:heating up to 200-300 grade; the heat treeting ia annealing

  20848   ( 20848 ) - Electrotechnical unalloyed steel: chemical composition, mechanical and physical properties, hardness
Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys

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