Database of Steel and Alloy (Marochnik)

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Metals -> Structural steel -> High quality structural carbon steel

Characteristics of the material 58   ( 58,   58 ).

Material : 58   ( 58,   58 )
Substitute: 30ХГТ, 20ХГНТР, 20ХН2М, 12ХН3А, 18ХГТ
Classification : High quality structural carbon steel


Chemical composition in % of the material 58   ( 58,   58 ) .
C Si Mn Ni S P Cr Cu As
0.55 - 0.630.1 - 0.3max   0.2max   0.25max   0.04max   0.035max   0.15max   0.25max   0.08


Temperature of critical points of the grade 58   ( 58,   58 ).
Ac1 = 720 ,      Ac3(Acm) = 785


Mechanical properties under Т=20oС of the material 58   ( 58,   58 ) .
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Steel hotrolled 130   600 300 10 25350Normalizing


    Brinell hardness of the material   58   ( 58,   58 )   ,       HB 10 -1= 255   MPa


Technological properties of the material 58   ( 58,   58 ) .
  Weldability: is not used.
 Flakes : not predisposed
Temper brittleness: not predisposed



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]

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

Database of steels and alloys (Marochnik) contains information about chemical composition and properties of 1500 steels and alloys (stainless steel, alloy steel, carbone steel, structural steel, tool steel, cast iron, aluminum alloy, titanium alloy, copper alloy, nickel alloy, magnesium alloy and others).
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