45C8 CARBON STEEL

 

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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, the residual elements such as copper, molybdenum, aluminum, chromium, and nickel are present in these steels.

 

Grade Application:

 

 

Equivalent grades:

 

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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Price List:

 

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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:

 

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:

 

Annealing:

680 – 710°C/furnace

 

Density:

 

Machinability:

 

Welding:

 

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.