S45C Carbon Steel

in stock

 

AISI 1045 / 760 Carbon Steel is a medium tensile low hardenability carbon steel.

 

Looking for S45C Carbon Steel?

S45C Carbon Steel also known as
  • AISI 1045 Steel 
  • EN8 Steel 
  • DIN CK45 Steel 
  • 760 Steel 

*Different country have different code for this carbon steel. 

 

Properties of S45C Carbon Steel 

S45C Carbon Steel also known as AISI 1045 Steel is a medium tensile low hardenability carbon steel generally supplied in the cold drawn or turned and polished condition, with a typical tensile strength range 600 – 950 Mpa and Brinell hardness range 179 – 280. in either condition.

Characterised by good strength and impact properties, with good machinability and reasonable weldability in the as supplied condition.

S45C Carbon Steel / AISI 1045 / CK45 / EN8 / 760 Steel has a low through hardening capability with sections up to around 60mm only generally recommended as suitable for through hardening and tempering. It can however be successfully flame or induction hardened in the as supplied condition resulting in surface hardnesses of up to Rc 54 – Rc 60 depending upon quenching medium employed, type of set up, section size etc. Core strengths will remain as supplied.

It does not however respond satisfactorily to nitriding due to a lack of suitable alloying elements.

S45C Carbon Steel / AISI 1045 / CK45 / EN8 / 760 Steel is used extensively by all industry sectors for applications requiring more strength and wear resistance than the low carbon mild steels can provide and the higher strength of the low alloy high tensile steels is not necessary, plus those applications requiring flame or induction hardening.

 

Typical applications for 1045 Carbon Steel 

S45C Carbon Steel / AISI 1045 / CK45 / EN8 / 760 Steels are mostly used for Axles Various, Bolts, Connecting Rods, Hydraulic Clamps and Rams, Pins Various, Rolls Various, Studs, Shafts, Spindles etc.

 

Technical Data of 760 Carbon Steel

DINAISIJIS
CK451045S45C
Chemical Composition           
CSiMnPSCoCrMoNiVWCu
0.42 to 0.480.20 to 0.350.60 to 0.90≤ 0.030≤ 0.035-------
Typical Mechanical Properties - Hot Rolled Condition   
Tensile
Strength
Mpa
Yield
Strength
Mpa
Elongation
In 50mm
%
Hardness
Brinell
HB
570 - 700 300 - 45014-30170 - 210
Typical Mechanical Properties - Normalised Condition     
Tensile
Strength
Mpa
Yield
Strength
Mpa
Elongation
In 50mm
%
Impact
Izod
J
Hardness
HB
Hardness
Rc
640410225418710

 


Forged of S45C Carbon Steel / CK45 Steel

Preheat to 750 oC – 800 oC, then continue heating to 1100 oC – 1200 oC maximum, hold until temperature is uniform throughout the section and commence forging immediately.

Do not forge below 850 oC

Finished forgings may be air cooled.


– 

Heat Treatment of S45C Carbon Steel / CK45 Steel

Annealing of 760 Carbon Steel / AISI 1045 :

Heat to 800 oC – 850 oC hold until temperature is uniform throughout the section, and cool in furnace.

 

Flame or Induction Hardening of 760 Carbon Steel / AISI 1045 :
Heat as quickly as possible to the austenitic temperature range (820 oC – 860 oC) and required case depth followed by an immediate water or oil quench, depending upon hardness required, workpiece size/shape and quenching arrangements.
Following quenching to hand warm, most components should be tempered at 150 oC – 200 oC to remove quenching stresses in the case. This will have little effect on case hardness.

 

Hardening of 760 Carbon Steel / AISI 1045 :
Heat to 820 oC – 850 oC hold until temperature is uniform throughout the section, soak for 10 – 15 minutes per 25mm of section, and quench in water or brine.

or:
Heat to 830 oC – 860 oC soak as above and quench in oil.
Temper immediately while still hand warm.

 

Normalizing of 760 Carbon Steel / AISI 1045 :  

Heat to 870 oC – 920 oC hold until temperature is uniform throughout the section, soak for 10 – 15 minutes and cool in still air. 

 

Stress Relieving of 760 Carbon Steel / AISI 1045 : 

Heat to 550 oC – 660 oC hold until temperature is uniform throughout the section, soak for 1 hour per 25mm of section, and cool in still air.

 

Tempering of 760 Carbon Steel / AISI 1045 :

 Reheat to 400 oC – 650 oC as required, hold until temperature is uniform throughout the section, soak for 1 hour per 25mm of section, and cool in still air.


Machining of S45C Carbon Steel / CK45 Steel

AISI 1045 Carbon Steel in the cold drawn or turned and the polished condition has very good machinability and all operations such as turning, drilling, broaching, milling and tapping etc. can be carried out satisfactorily using machine manufacturers recommendations for suitable tool type, feeds and speeds.