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Characteristics for grade     12k   ( 12К )



      Grade :     12k   ( 12К )
      Classification :   High quality structural carbon steel
      Equivalent grades:   Go here



Chemical composition in % for grade   12k   ( 12К )
C Si Mn Ni S P Cr Cu As
0.08 - 0.160.17 - 0.370.4 - 0.7max   0.3max   0.04max   0.04max   0.3max   0.3max   0.08


Mechanical properties under Т=20oС for grade   12k   ( 12К )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Sheet to 20   350-440225 24  780As-delivered state
Sheet 21 - 40   350-440215 24  780As-delivered state
Sheet 41 - 60   350-440205 24  780As-delivered state


Technological properties for grade   12k   ( 12К )
  Weldability: without limitations.


Equivalent steels for grade     12k   ( 12К )
Warning! Indicated both exact and nearest equivalents.
USAGermanyJapanFranceEnglandEuropeanItalySwedenPolandCzechiaFinlandAustria
-DIN,WNrJIS AFNORBSEN UNISSPNCSNSFSONORM
A285
Gr.55
Gr.A
1.0345
ASt35
H1
SGV410
SPV450
A37AP
A37CP
141-360
1.0345
5235GH
P235GH
Fe360-1KG
Fe360-1KW
FeE235
1330
St36K
11364
11366
Fe37BP
St35KW



Types of delivery of grade   12k   ( 12К )
B23 - Sheets and Strips


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]

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

  12k   ( 12К ) - High quality structural carbon 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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