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Characteristics for grade     15L   ( 15Л )



      Grade :     15L   ( 15Л )
      Substitute:   20Л
      Classification :   Non-alloy casting steel
      Equivalent grades:   Go here



Chemical composition in % for grade   15L   ( 15Л )
C Si Mn S P
0.12 - 0.20.2 - 0.520.45 - 0.9max   0.06max   0.06


Temperature of critical points for grade   15L   ( 15Л ).
Ac1 = 735 ,      Ac3(Acm) = 863 ,       Ar3(Arcm) = 840 ,       Ar1 = 685


Mechanical properties under Т=20oС for grade   15L   ( 15Л )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Casting, GOST 977-88 to 100   392 196 24 35491Normalizing 910 - 930oC,Drawing 670 - 690oC,


    Brinell hardness for     15L   ( 15Л )   ,       HB 10 -1 = 109 - 136   MPa


Technological properties for grade   15L   ( 15Л )
  Weldability: without limitations.
 Flakes : not predisposed
Temper brittleness: not predisposed


Technological properties of the material   15L   ( 15Л ) .
        Linear shrinkage : 2.2 - 2.3   %


Heat treatment of the material   15L   ( 15Л )
Normalizing 910 -930 ° C or Normalizing 910 -930 ° C, Tempering 670 - 690 ° C


Physical properties for grade   15L   ( 15Л )
T E 10- 5 a 10 6 l r C R 10 9
Grade MPa 1/Grade Watt/(m·Grade) kg/m3 J/(kg·Grade) Ohm·m
20       7820    
100   11.9 78   470  
200   12.5 67   479  
300            
400   13.6 48   517  
500   14.2 41      
600         571  
T E 10- 5 a 10 6 l r C R 10 9


Equivalent steels for grade     15L   ( 15Л )
Warning! Indicated both exact and nearest equivalents.
USAGermanyJapanFranceEnglandEuropeanItalyChinaSwedenBulgariaHungaryPolandRomaniaCzechiaInterTaiwan
-DIN,WNrJIS AFNORBSEN UNIGBSSBDSMSZPNSTASCSNISO-
J01700
1.0416
1.0420
1.1142
GS-38
GS-CK16
SC360
E20-40M
AM1
AW1
CLA9
1.0416
C18D
FeG42
ZG200-400
1035
15LI
15LII
Ao400
Ao400FK
L400
LII400
OT400-1
OT400-3
422630
200-400
SC(37)C



Types of delivery of grade   15L   ( 15Л )
B42 - Rails: Pads, Pads, Crutches
B82 - Steel Castings


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

  15L   ( 15Л ) - Non-alloy casting 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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