C45 / DIN 1.0503 Carbon Steel |AISI 1045|S45C

C45 / DIN 1.0503 Forged steel manufacturers and suppliers,supplied in round rods,square/flat bars,rollers,shafts,blocks and forging pieces.

C45 / DIN 1.0503 Carbon Steel is a general carbon engineering steel which is characterized by good weldability, good machinability, and high strength and impact properties after quenched and tempered. As per EN 10083 standard,it is widely used for vechiles, shafts, bushings, crankshafts, connecting rods and parts for the machine building industry and steel for axes, knives, hammers, etc.

C45/DIN 1.0503 carbon steel bar

1.Chemical Composition

C45/DIN 1.05030.42-0.5≤ 0.40.5-0.8≤ 0.035≤ 0.035≤ 0.4
1045 0.43-0.5-0.6-0.9≤ 0.04≤ 0.05-
S45C0.42-0.480.15-0.350.6-0.9≤ 0.035≤ 0.035-

2.Equivalent Grade


3.Supply Size for C45

Shape:Round / Square / Flat Bars, Shafts, Rollers, Blocks.
Forged Round bar
Diameter: 80-1,000mm
Forged Square/Flat/Block
Surface condition: Black/Rough turned

4.Heat Treatment & Mechanical Property

C45 Steel Normalizinging Details

1.Normalize temperature:840-900℃
2.Three steps for temperature raising
3.Proper holding time depends on the dimension.
4Air cooling.
5.Hardness: below 240HB.

C45 normalizing diagram

C45 Normalizing Diagram

Mechanical Property-C45 Normalizing

Tensile Strength Yield StrengthElongationReduction of AreaImpact Charpy-VHardness

C45 Steel Annealing Details
1.Annealing temperature:820-840℃
2.Enough soaking time for the steel heating
3.Cooling in the furnace.
4.Max hardness:200HBW

C45 Annealing diagram

C45 Annealing Diagram

Mechanical Property-C45 Annealing

Tensile Strength Yield StrengthElongationReduction of AreaImpact Charpy-VHardness

C45 Steel Quenching Details

C45 steel quenching diagram

C45 Quenching Diagram

Mechanical Property-C45 Quenched followed by different tempering temperature

TemperatureTensile YieldElongationReduction of areaImpact Charpy-VHardness