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IS 55C8

Home IS 5517 (1993) STEEL BAR IS 55C8

IS 55C8 CARBON STEEL ROUND BAR

Carbon Steel IS 55C8

55C8 Round Bar Stockist | 55C8 Round Bar Suppliers | 55C8 Round Bar Exporters | 55C8 Round Bar India | 55C8 Round Bar Mumbai | 55C8 Round Bars Dealers

 

55C8 Round Bars | 55C8 Flat Bars

 

IS 55C8 is designation of PLAIN CARBON STEEL.

These Steels are used for making gears, coil, springs, cylinders, cams, keys, crankshafts, sprockets and machine parts requiring moderate wear resistance for which toughness is not of primary importance. It is also used for cycle and industrial chains, spring, can opener, umbrella ribs, parts of camera and typewriter.

IS 55C8 also known as 070M55. Unalloyed medium carbon steel. IS 55C8 is a medium strength steel, good tensile strength. Suitable for shafts, stressed pins, studs, keys etc. Available as normalized or rolled IS 55C8 is supplied round drawn/turned, round hot rolled, hexagon, square, flats and plate. IS 55C8 is usually supplied untreated but can be supplied to order in the normalized or finally heat treated (quenched and tempered to ”Q” or “R” properties for limiting ruling sections up to 63mm), which is adequate for a wide range of applications.

 

Chemical Composition of 55C8 | C55 :
Grade C Mn Si S P
55C8 Min 0.50 0.60 0.10 - -
Max 0.60 0.90 0.35 0.35 0.35

 

Carbon Steels
Specifications Chemical Composition Typical Applications
C Si Mn S P
IS 55C8 0.50/0.57 0.10/0.35 0.60/0.90 0.035 max 0.035 max Sprockets and springs, cylinders, cams, keys, crankshafts, small gears, machine tools and balls for ball mills.
DIN Ck55 0.52/0.60 0.15/0.35 0.60/0.90 0.035 max 0.035 max
JIS S55C 0.52/0.58 0.15/0.35 0.60/0.90 0.035 max 0.030 max
AISI 1055 0.50/0.60 0.15/0.30 0.60/0.90 0.050 max 0.040 max

 

Application of plain carbon steel:

Depending upon the percentage of carbon, plain carbon steels are classified into the following category:

  1. Low carbon steel
  2. Medium carbon steel
  3. High carbon steel

 

Some of the important applications of plain carbon steel are following below:
  1. 7C4 used for components made by severe drawing operation such as automobile bodies and hoods.
  2. 10C4 used for case hardened components such as cams and cam shafts, gudgeon pin, sprocket and spindle.
  3. 30C8 used for cold formed and case hardened parts such as socket, tie road, yoke, lever and rocker arm.
  4. 40C8 used for transmission shaft, crank shaft, connecting road,  bolts, couplings, and cold headed parts.
  5. 45C8 used for machine tool spindle, transmission shaft, bolts and gears of large dimensions
  6. 50C4 used for transmission shaft,, worms, gears and cylinders.
  7. 55C8 used for components with moderate wear resistance such as gears, cam, sprocket, cylinder and key.
  8. 60C4 used for machine tool spindle, hardened bolt and pinion.
  9. 65C6 used to make coil and leaf spring.

 

Different designation of Carbon Steel   IS 55C8 :
  • SAE/AISI 1055
  • BS 070M55
  • IS C55 Mn 75 (OLD)
  • UNS G10400
  • DIN CK55
  • AFNOR - XC55H1
  • AFNOR - 3C55
  • AFNOR - XC55H1U
  • AISI - 1055
  • BS - 060A57
  • BS - 060A52
  • BS - 070M55
  • BS - EN43
  • DIN - CM55
  • DIN - C55
  • DIN - Ck55
  • EN - C55E
  • EN - C55R
  • EN - CM55
  • GB - 55
  • GB - #55
  • GOST - 55
  • JIS - S55C
  • JUS - C.1631
  • JUS - C.1630
  • JUS - C.1680
  • KS - SM55C
  • NBN - C55-1
  • PN - 55
  • SIS - 1655
  • STAS - OLC55XS
  • STAS - OLC55
  • STAS - OLC55X
  • UNI - C55
  • UNS - G10550
  • W-Nr - 1.0535
  • W-Nr - 1.1203
  • W-Nr - 1.1209

Client / Customer can procure smaller quantities of IS 55C8 / SAE / AISI 1055 Online ready stock from us at any designation by sending us an email at This email address is being protected from spambots. You need JavaScript enabled to view it.

We are also specialist in High speed steel, Hot die steel, Cold work tool steel, High carbon high chromium tool steel, Alloy steel, Carbon steel, Forging steel, and Bright bars. Having a rich industry experience of more than a decade, we are one of the most trusted organizations engaged in trading and supplying an exclusive range of Special Steels and we are stockiest & dealer of M2, M35, M42, H13, H11, D2, D3, CW-1, OHNS, HCHCR, SKD-11, Din-1.2379, Din-1.2714, P20, P20+S, P20+Ni, 42Crmo4, EN24, EN31, EN19, EN353, EN36C, EN41B, EN47, EN1A, EN8, EN8D, EN9, EN3B, EN8M, EN19, EN43B, EN32B, IS2062, SCM420,ASTM SA-36, ASTMSA105, SAE1018, SAE1020, SAE4140, SAE8620, 16MNCR5, 20MNCR5, C20, C35, C40, C45, C50, C60, CK45, 20C8, 40C8, 45C8, 55C8, C55MN75, SAE52100, S40C, S355J2G3. for various sizes from 16mm to 1000 mm in different sections like Round, Flat, Square, Hexagon plate and various profile conforming to IS, BS, ASTM, DIN and other international standards and specifications.