C45 round bar manufacturer in India

Grade C45 Carbon Steel Round Bar is an unalloyed medium carbon steel alloy.  The Carbon Steel C45 Hex Bar is regarded as a general carbon engineering steel grade. The medium tensile strength properties of Carbon Steel C45 Bars along with good machinability.

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C45 Round Bar
C45 Round Bar
  C45 rod
C45 rod
Carbon Steel C45 Round Bar
Carbon Steel C45 Round Bar

Typically the C45 CS Forged Bars are supplied in either a black hot rolled condition or they could be supplied occasionally in a normalised condition. The tensile strength of Carbon Steel C45 Round Bars ranges between 570 Mpa – 700 Mpa, while the Brinell hardness value ranges between 170 – 210 in both, normalised and black hot rolled condition. However, these Carbon Steel C45 Bright Bars do not respond satisfactorily to nitriding conditions due to a lack of suitable elements for its alloying.

C45 steel round bar is equivalent to EN8 or 080M40. Application of the C45 welding rod includes its suitable for the manufacture of equipment such as general-purpose axles,  gears, bolts, and shafts, keys and studs. The aforementioned equipment requires good mechanical strength, therefore CS C45 Round Bar demonstrates their suitability here. The strength and wear resistance of C45 steel rod is much higher as compared to a low carbon mild steel alloy grade. As one of the leading C45 round bar manufacturer in India, we offer highly competitive pricing solutions.

 

Chemical Equation of C45 round bar

Variant
Cast
Weldability
 
C %
Si %
Mn %
P %
S %
Cr %
Ni %
Mo %
V %
Ti %
Cu %
Al %
DI %
SB8673
CC
CEV 0.71max
Min
0.46
0.15
0.70
0.020
0.25
0.10
0.020
1.70
Pcm 0.55max
Max
0.49
0.35
0.80
0.020
0.035
0.30
0.20
0.25
0.040
2.00
SB1672
CC
CEV 0.72max
Min
0.42
0.10
0.50
0.020
1.10
Pcm 0.55max
Max
0.50
0.40
0.90
0.045
0.045
0.40
0.40
0.10
1.80
SB1671
CC
CEV 0.58max
Min
0.42
0.15
0.50
0.035
1.20
Pcm 0.51max
Max
0.50
0.40
0.80
0.045
0.050
1.60
5081, Imatra 4 M
CC
CEV 0.72max
Min
0.42
0.10
0.50
0.020
1.10
Pcm 0.55max
Max
0.50
0.40
0.90
0.030
0.035
0.40
0.40
0.10
1.80
5155
CC
CEV 0.72max
Min
0.44
0.10
0.50
1.10
Pcm 0.55max
Max
0.49
0.40
0.80
0.030
0.025
0.40
0.40
0.10
1.80
047A
IC
CEV 0.76max
Min
0.46
0.15
0.50
0.020
0.015
Pcm 0.6max
Max
0.50
0.40
0.80
0.030
0.030
0.25
0.25
0.10
0.100
0.005
0.25
0.030
C45 EN 10083-2:2006
Std
CEV 0.68max
Min
0.42
0.50
Pcm 0.55max
Max
0.50
0.40
0.80
0.045
0.045
0.40
0.40
C45R EN10083-2:2006
Std
CEV 0.65max
Min
0.42
0.50
0.020
Pcm 0.53max
Max
0.50
0.40
0.80
0.030
0.040
0.40
0.40
C45E EN 10083-2:2006
Std
CEV 0.71max
Min
0.42
0.50
Pcm 0.55max
Max
0.50
0.40
0.80
0.030
0.035
0.40
0.10

 

C45 round bar Material Equivalent

USA
Germany
China
Japan
France
England
Italy
Poland
ISO
Austria
Sweden
Spain
ASTM/AISI/

UNS/SAE

DIN,WN-r
GB
JIS
AFNOR
BS
UNI
PN
ISO
ONORM
SS
UNE
1045 G10450
C45/Ck45/1.1191/C45
45#
S45C
C45E  Ck45
C40E  080M466
 
 
 
 
1660

 

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C45 round bar Mechanical Strength Table

Mechanical Properties in Quenched+Tempered Condition

Diameter d (mm)
Thickness t (mm)
0.2 % proof stress (N/mm2)
Tensile strength (N/mm2)
Elongation A5 (%)
Reduction Z (%)
<16
<8
min. 490
700-850
min. 14
min. 35
<17-40
<8<=20
min. 430
650-800
min. 16
min. 40
<41-100
<20<=60
min. 370
630-780
min. 17
min. 45

 

Mechanical Properties in Normalized Condition

Diameter d (mm)
Thickness t (mm)
0.2 % proof stress (N/mm2)
Tensile strength (N/mm2)
Elongation A5(%)
<16
<16
min. 390
min. 620
min. 14
<17-100
<16<=100
min. 305
min. 305
min. 16
<101-250
<100<250
min. 275
min. 560
min. 16

 

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Specifications, sizes and dimensions of Carbon Steel C45 Round Bar

  • Standard : ASTM A29
  • Sizes C45 Steel Round Bar : diameter 8mm – 3000mm
  • Supply Range of Steel C45 Round Bar
    • C45 Steel Round Bar: diameter 8mm – 3000mm
    • C45 Steel Plate: thickness 10mm – 1500mm  x width 200mm – 3000mm
    • C45 Steel Flat Bar: 200mm – 1000mm
    • Square C45 Steel: 20mm-800mm
    • Hexagon Steel.
  • Similar designations: C43, C44, C45R – 1.1201, C45E – 1.1191, Ck45, St70-2, SAE 1045, 080A42, SS 1672, XC 48, C 45, S 45 C, GOST 45, AISI/SAE/ASTM 1045

 

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Heat Treatment of C45 round bar 

Forging or hot rolling:
1100 – 850°C
Normalising:
840 – 880°C/air
Soft annealing:
680 – 710°C/furnace
Hardening:
820 – 860°C/water, oil
Tempering:
550 – 660°C/air

 

Heat treatment recommendations of C45 round bar

Treatment
Condition
Temperature cycle
Cooling/quenching
Hot forging
+U

800-1150°C

In still air

Normalizing
+N

840-870°C

In still air

Soft annealing
+SA

650-700°C

In still air

Stress relieve annealing
+SRA

550-650°C

In still air

Quench & Tempering
+QT

840-870°C 

In oil   Temper immediately

Quench & Tempering
+QT

820-850°C

In water  Temper immediately

Induction or Flame hardening
I-F

870-900°C

In oil   Temper immediately

 

Transformation temperatures of C45 round bar

 
Temperature °C
MS
305
AC1
725
AC3
760

 

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Hardenability of C45 round bar

Other properties (typical values)

Youngs module (GPa)
Poisson´s ratio (-)
Shear module (GPa)
Density (kg/m3)
210
0.3
80
7800
Average CTE 20-300°C (µm/m°K)
Specific heat capacity 50/100°C (J/kg°K)
Thermal conductivity Ambient temperature (W/m°K)
Electrical resistivityAmbient temperature (µΩm)
12
460 – 480
40 – 45
0.20 – 0.25
Ready Stock of C45 Spring Steel Round Bar

  • C45 Carbon Steel Round Bars
  • Carbon Steel C45 Round Bars
  • ASME, ASTM Carbon Steel C45 Spring Steel Round Bars
  • Carbon Bars C45 Spring Steel Rods
  • AISI Spring Steel Bright Bar
  • Carbon Steel C45 Forged Bars
  • Carbon Steel C45 Flat Bar
  • Carbon Steel C45 Square Bar
  • Carbon Steel C45 Threaded Bar
  • C45 Carbon Steel Bar
  • ASTM Carbon Steel Black Bar
  • JIS C45 CS Bar

 

Applications of C45 round bar

Applications are as discussed as under:

  • Parts in different engineering applications
  • Used in the manufacturing of different gears
  • Parts used in Automotive industry
  • Manufacturing material of Studs and Spindles
  • Manufacturing material of shafts and Axles
  • Manufacturing material of Knives and paint scrapers

 

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