MEDIUM CARBON STEEL

NORM: PN/EN 10083-2

APPLICATION:

Steel adjusted to the parts exposed on heavy loadings and more resistant to abrasion. Such as: wheels, rims, toothed shafts, cylinders, shafts, axles, pins, eccentrics;

TECHNOLOGICAL INFORMATION:

After soft annealing, steel becomes machinable; if normalised and soft annealed, steel becomes adjusted for the mechanical cutting.

SEMI-FINISHED PRODUCTS:

After soft annealing, steel becomes machinable; if normalised and soft annealed, steel becomes adjusted for the mechanical cutting.

CHEMICAL COMPOSITION:

CMnSiPSCrNiMoVWTiCuInne
0,57 - 0,650,60 - 0,90Max 0,40Max 0,045Max 0,045Max 0,40Max 0,40Max 0,10----Cr+Mo+Ni max 0,63

MECHANICAL PROPERTIES:

Effect of the cross-section on mechanical properties
If heat treated
Diameter d, mm

Thickness of the flat bar t, mm

≤ 16

≤ 8

16 – 40

8 – 20

40 – 100

20 – 60

Ultimate tensile strength, Rm, MPa 850 – 1000 800 – 950 750 – 900
Yield stress Re (Rp0.2), MPa ≥ 580 ≥ 520 ≥ 450
Elongation, A, % ≥ 11 ≥ 13 ≥ 14
Reduction of area, Z, % ≥ 25 ≥ 30 ≥ 35
If normalised
Diameter, d, mm

Thickness of the flat bar t, mm

≤ 16

≤ 16

16 – 100

16 – 100

100 – 250

100 – 250

Ultimate tensile strength, Rm, MPa ≥ 710 ≥ 670 ≥ 650
Yield stress Re (Rp0.2), MPa ≥ 380 ≥ 340 ≥ 310
Elongation, A, % ≥ 10 ≥ 11 ≥ 11

Technological treatment processes:

Technological treatment processes Possible application Temperature, °C
Hot forming Forging + (1050 – 850)
Rolling + (1050 – 850)
Treatment Heat treatment Quenching + 810-850/w,o
Tempering + 550 – 660
Precipitation strengthening Supersaturation
Ageing
Annealing Normalising + 820 – 880
Soft annealing + (650 – 700)
Thermochemical treatment Carburising
Other

INTERNATIONAL STEEL GRADES:

ISO European Union Russia
~C60 ISO 683-1 1987 C60 EN 10083-2 1996 ~60 GOST 1050 1988
US Japan China
~M 1060 ASTM A 29-93 ~S 60 C JIS G 4051 1979 ~60 GB 699-88