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S55C STEEL

S55C STEEL

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          S55C steel is a steel with a carbon content of about 0.55% according to Japanese standards (JIS).

          Steel grades equivalent to S55C steel: 1055 steel, C55 steel, 55 steel, etc.

1. Product charateristics

-        High Strength steel with medium carbon content.

-        Strong oxidation resistance, High rust resistance, Good polishing.

-        Good Strength, toughness and easy heat treatment, suitable for general use.

-        High technology, easy to cast, roll, forge, weld, and cut.

-        Great bearing capacity.

-        Light-weight

-        Less susceptible to corrosion

2. Chemical Composition

Standard
(JIS G4051)

Chemical Composition Rate ( Wt, % )

C

Si

Mn

Ni

Cr

P

S

S55C

0.52

0.15

0.6

 

0.2

 

 

0.58

0.35

0.9

0.2

0.5

0.03

0.035

  1. Physical properties

Steel

Tensile strengh

Yield strengh

Relative Elongation

N/mm2

N/mm2

(%)

S55C

610-740

365-560

13

  1. Heat treatment process

Steel

Annealing

Quenching

Tempering

Hardness HRC

Temperature (°C)

Temperature

Oil

Temperature

Air

(°C)

(°C)

S55C

~600

800~850

180~200

45-55C

5. Apllications     

-        Widely used as mold base, plastic mold.   

-        used to manufacture machine parts, brick molds, rubber molds, equipment, car details...         

-        used in shipbuilding, boats, factory structures, petroleum tanks, mechanics, construction mechanics...         

-        used in machinery manufacturing industry, mechanical industry, boiler.  

-        used to make plastic molds, molds for tables and chairs, plastic household items.