C55MN75


55C8

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Grade Introduction:

C55MN75 Carbon steels are steels having carbon as the major alloying element. They also contain up to 1.2% manganese and 0.4% silicon. In addition, residual elements like copper, molybdenum, aluminum, chromium, and nickel are present in these steels.


Grade Application:

  • Agricultural implements
  • Heavy machinery components
  • Wear-resistant parts
  • Ring-rolling tools
  • Battering tools
  • Hand tools
  • Springs


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, 45C8, 55C8, SAE 52100, S40C, S355J2G3.


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Price List:



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Chemical composition:



Mechanical Properties:

PROPERTIES METRIC IMPERIAL
Tensile strength, ultimate 585 MPa 84800 psi
Tensile strength, yield 370 MPa 53700 psi
Modulus of elasticity 190-210 GPa 29700-30458 ksi
Bulk modulus (typical for steel) 140 GPa 20300 ksi
Bulk modulus (typical for steel) 140 GPa 20300 ksi
Shear modulus (typical for steel) 80 GPa 11600 ksi
Poissons ratio 0.27-0.30 0.27-0.30
Elongation at break (in 50 mm) 0.3 0.3
Reduction of area 0.53 0.53
Hardness, Brinell 183 183
Hardness, Knoop (converted from Brinell hardness) 204 204
Hardness, Rockwell B (converted from Brinell hardness) 89 89
Hardness, Vickers (converted from Brinell hardness) 192 192
Machinability (based on AISI 1212 steel. as 100 machinability) 65 65

Hardness:


Heat Treatment:


Hardening:


Tempering:


Physical Properties

PROPERTIES METRIC IMPERIAL
Density 7.85 g/cm 3 0.284 lb/in 3

Thermal Properties


Forging Properties:


Stress Relieving:


Normalizing:

Normalize at 1550° to 1625°F (843° to 885°C)


Annealing:

Full anneal at 1525° to 1600°F (829° to 871°C) before furnace cooling process anneal at 1100° to 1225°F (593° to 663°C) after cold working


Density:

PROPERTIES METRIC IMPERIAL
Density 7.85 g/cm3 0.284 lb/in3

Machinability:

Sulfured or chlorinated cutting oils for high-speed steel cutters
No oil for carbide-tip tools
Grind high-speed steel turning tools
8-12° side rake
6-10° back rake
7-9° side and end relief
12-16° side cutting-edge angle
8-14° end cutting-edge angle
Nose radius 10% of cut depth
Grind carbide-tip tools
6-12° side rake
2-8° back rake
6-10° side and end relief
8-12° end cutting-edge angle
8-16° side cutting-edge angel
1/32” nose radius


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.