Database of Steel and Alloy (Marochnik)

  Home     Steel and Alloy     Search     Equivalent Grades     GOST Standards     Grading     Contacts  

    YOU HERE:   Steel and Alloy   ->   Structural steel

Characteristics for grade     45   ( 45 )

      Grade :     45   ( 45 )
      Substitute:   40Х, 50, 50Г2
      Classification :   High quality structural carbon steel
      Equivalent grades:   Go here



Chemical composition in % for grade   45   ( 45 )
C Si Mn Ni S P Cr Cu As
0.42 - 0.50.17 - 0.370.5 - 0.8max   0.3max   0.04max   0.035max   0.25max   0.3max   0.08


Temperature of critical points for grade   45   ( 45 ).
Ac1 = 730 ,      Ac3(Acm) = 755 ,       Ar3(Arcm) = 690 ,       Ar1 = 780 ,       Mn = 350


Mechanical properties under Т=20oС for grade   45   ( 45 )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Pipe, GOST 8731-87     588 323 14    
Bar cold-drawn , GOST 10702-78     590     40 Annealing
Rolled stock, GOST 1050-88 to 80   600 355 16 40 Normalizing
Rolled stock cold-worked , GOST 1050-88     640   6 30  
Rolled stock annealed , GOST 1050-88     540   13 40  
Band annealed , GOST 2284-79     440-690  14    
Band cold-worked , GOST 2284-79     690-1030       
Strip, GOST 1577-93 6 - 60   600 355 16 40 Normalizing


    Brinell hardness for     45   ( 45 )   ,     Pipe GOST 8731-87 HB 10 -1 = 207   MPa
    Brinell hardness for     45   ( 45 )   ,     Rolled stock GOST 1050-88 HB 10 -1 = 229   MPa
    Brinell hardness for     45   ( 45 )   ,     Rolled stock GOST 1050-88 HB 10 -1 = 241   MPa
    Brinell hardness for     45   ( 45 )   ,     Rolled stock GOST 1050-88 HB 10 -1 = 207   MPa
    Brinell hardness for     45   ( 45 )   ,     Rolled stock GOST 1050-88 HB 10 -1 = 197   MPa


Technological properties for grade   45   ( 45 )
  Weldability: hard weldability.
 Flakes : weakly predisposed
Temper brittleness: not predisposed


Physical properties for grade   45   ( 45 )
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 2     7826    
100 2.01 11.9 48 7799 473  
200 1.93 12.7 47 7769 494  
300 1.9 13.4 44 7735 515  
400 1.72 14.1 41 7698 536  
500   14.6 39 7662 583  
600   14.9 36 7625 578  
700   15.2 31 7587 611  
800     27 7595 720  
900     26   708  
T E 10- 5 a 10 6 l r C R 10 9


Equivalent steels for grade     45   ( 45 )
Warning! Indicated both exact and nearest equivalents.
USAGermanyJapanFranceEnglandEuropeanItalyBelgiumSpainChinaSwedenBulgariaHungaryPolandRomaniaCzechiaAustriaAustraliaSwitzerlandSouth Korea
-DIN,WNrJIS AFNORBSEN UNINBNUNEGBSSBDSMSZPNSTASCSNONORMASSNVKS
1044
1045
1045H
G10420
G10430
G10440
G10450
M1044
1.0503
1.1191
1.1193
C45
C45E
C45R
Cf45
Ck45
Cm45
Cq45
S45C
S48C
SWRCH45K
SWRCH48K
1C45
2C45
AF65
C40E
C45
C45E
C45RR
CC45
XC42H1
XC42H1TS
XC45
XC45H1
XC48
XC48H1
060A47
080M
080M46
1449-50CS
1449-50HS
50HS
C45
C45E
1.0503
1.1191
1.1192
2C45
C45
C45E
C45EC
C46
1C45
C43
C45
C45E
C45R
C46
C45-1
C45-2
C46
C45
C45E
C45k
C48k
F.114
F.1140
F.1142
45
45H
ML45
SM45
ZG310-570
ZGD345-570
1650
1672
45
C45
C45E
A3
C45E
45
OLC45
OLC45q
OLC45X
12050
12056
C45SW
1045
HK1042
K1042
C45
Ck45
SM45C
SM48C


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

  45   ( 45 ) - 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

    ©   2003 - 2018         Database of Steel and Alloy (russian title is the Marochnik)
Administration of the Marochnik is not responsible for the content's use.
Previous address of this website was splav.kharkov.com
Рейтинг@Mail.ru