45C8 Steel Round Bar, 45C8 Steel Round Bar Manufacturers, 45C8 Steel Suppliers, 45C8 Stockist, 45C8 Steel Dealers, 45C8 Steel Distributors, 45C8 Wholesalers, 45C8 Steel Traders, 45C8 Steel Square Distributors, 45C8 Steel Flat Bar, 45C8 Steel Companies Near me.
 
Grade Introduction:
45C8 Carbon steels have carbon as the key alloying element in their composition. They also contain up to 0.4% silicon and 1.2% manganese. In addition, residual elements such as copper, molybdenum, aluminum, chromium, and nickel are present in these steels.
 
Grade Application:
45C8 steel grade round bar, steel plate, flat and square is used for axles, bolts, forged connecting rods, crankshafts, torsion bars, light gears, guide rods, screws, forgings, wheel tyres, shafts, sickles, axes, knives, woodworking drills, hammers, etc.

 

 
Equivalent grades:
EN8

 

080A40

 

CK45

 

45C8

 

EN8

 

1040,1045

 

EN8A

 

080A40

 

CK45

 

45C8

 

EN8A

 

1040, 1045

 

EN8B

 

080A40

 

CK45

 

45C8

 

45C8

 

1040, 1045

 

EN8C

 

080A40

 

CK45

 

45C8

 

EN8C

 

1040,1045

 

EN8D

 

080A40

 

CK45

 

45C8

 

EN8D

 

1040, 1045

 

 
Addition to other grades:
MS, EN1A, EN3B, EN8, EN8D, EN9, EN19, EN24, EN31, EN32B, EN36C, EN41B, EN43B, EN47, EN353, IS2062, 42Crmo4, OHNS, HCHCR, D2, D3, H-11, H-13, CW-1, M2, M35, M42, 2714, SKD-11, P20, P20+S, P20+Ni, SCM 420, ASTM SA-36, ASTM SA-105, SAE 1018, SAE 1020, SAE 4140, SAE 8620, 16MNCR5, 20MNCR5, C20, C35, C40, C45, C50, C60, CK45, 20C8, 40C8, 55C8, C55MN75, SAE 52100, S40C, S355J2G3.
 
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Chemical composition:
The following table shows the chemical composition of 45C8 steel:
Element
C
Mn
Si
S
P
Content (%)
0.43
0.74
0.22
0.023
0.030

 

Mechanical Properties:
 
PROPERTIES
               METRIC          
             IMPERIAL            
Tensile strength Ultimate
660 MPa
95700 psi
Tensile strength Yield
560 MPa
81200 psi
Bulk modulus (typical for steels)
140 GPa
20300 ksi
Shear modulus (typical for steels)
80 GPa
11600 ksi
Elastic modulus
190 – 210 GPa
19700- 30458 ksi
Poisson’s ratio
0.27 -0.30
0.27 – 0.30
Elongation at break (in 50 mm)
0.1
0.1
Reduction of area
0.4
0.4
Hardness, Brinell
197
197
Hardness, Knoop (converted from Brinell hardness)
219
219
Hardness, Rockwell B (converted from Brinell hardness)
92
92
Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only)
13
13
Hardness, Vickers (converted from Brinell hardness)
207
207
Machinability (based on AISI 1212 steel. as 100 machinabilities)
55
55
 
Hardness:
197

 

 

Heat treatment:
 
Hardening:
820 – 860°C/Water, Oil
 
Tempering:
550 – 660°C/air
 
Physical Properties:
PROPERTIES
METRIC
IMPERIAL
Density
7.85 g/cm3
0.284 lb/in³
 
Thermal Properties:
PROPERTIES
METRIC
IMPERIAL
Thermal expansion co-efficient
11 µm/m°C
6.11 µin/in°F
Thermal conductivity
49.8 W/mK
346 BTU in/hr.ft².°F
 
Forging Properties:
1100 – 850°C/air
 
Stress Reliving:
 
Normalizing:
840 – 880°C

 

 

Annealing:
680 – 710°C/furnace
 
Density:
 
Machinability:
60 – 28

 

 

Welding:
    1. When welding is completed allow components to cool to 180°C before tempering

       

 

 

  • Heat to 620 – 650°C at a maximum heating rate of 100°C/hr or 6000/thickness (mm) °C/hr, whichever is smaller. Temper for 2 hours. Cool to 200°C at a controlled cooling rate of 100°C/hr maximum. Cool to room temperature in still air. In very highly restrained conditions, it may be necessary to consider an intermediate, lower temperature stress relief treatment.

     

 

 

 

  • If it is not convenient to hold the component at an intermediate temperature after welding, pending heating for tempering, the following alternative procedures (below) could be applied. However, if restraint is very high this alternative procedure may not prevent the occurrence of hydrogen-induced cracking.

     

    Alternative procedure:

     

      • Boost the preheat to 250°C and hold for 4 hours minimum.

         

     

  • Cool to room temperature at a maximum rate of 50°C/hr.

     

  •  
  • Temper when convenient.

     

  •  

     

 

 

 

 
Supply Cities:
Ahmedabad, Amaravathi, Ambattur, Bangalore, Belgaum, Chennai, Chittoor, Coimbatore, Dindigul, Mysore, Nellore, Hyderabad, Kochi, Mangalore, Tirupur, Tuticorin, Madurai, Andhra Pradesh, Karnataka, Puducherry, Kerala, Tamil Nadu, Telangana, Salem, Thanjavur, Trichy, Erode, Vellore, Ranipet, Sivakasi, Karur, Hosur, Nagercoil, Kanchipuram, Karaikudi, Neyveli, Cuddalore, Kumbakonam, Thiruvannamalai, Pollachi, Rajapalayam, Gudiyatham, Pudukottai, Vaniyambadi, Ambur, Nagapattinam, Trivandrum, Vijayawada, Guntur, Thirupathi, Nazarathpet, Kakinada, Kurnool, Kadapa, Nizamabad, Mahabubnagar, Karimnagar.

 

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