TOUGHENING STEEL

NORM: PN/EN 10083-3

Anmeldung:

Steel susceptible to very loaded axles, shafts, crankshafts, gears. Also adjusted for the parts which are exposed on variable movements bending, twisting, wearing, tear etc.

TECHNOLOGISCHE INFORMATIONEN::

After soft annealing steel becomes machinable ( by improved shearability) and adjusted for the mechanical cutting.

Zwischenprodukte:

After soft annealing steel becomes machinable ( by improved shearability) and adjusted for the mechanical cutting.

Chemische Zusammensetzung:

CMnSiPSCrNiMoVWTiCuInne
0,26 - 0,340,50 - 0,80Max 0,40Max 0,025Max 0,0351,80 - 2,201,80 - 2,200,30 - 0,50-----

Mechanische Eigenschaften:

Mechanical properties of a product with diameter d ≤ 16 mm
Property Symbol Unit After heat treatment
Ultimate tensile strength Rm MPa 1250 – 1450
Yield stress Re (Rp0,2) MPa ≥ 1050
Elongation A % ≥ 9
Reduction of area Z % ≥ 40
Impact energy KV J ≥ 30
The influence of the element’s cross-section on mechanical properties
Diameter d, mm

Thickness of the flat bar t, mm

16 – 40

8 – 20

40 – 100

20 – 60

100 – 160

60 – 100

160 – 250

100 – 160

Rm, MPa 1250 – 1450 1000 – 1300 1000 – 1200 900 – 1100
Re (Rp0,2), MPa ≥ 1050 ≥ 900 ≥ 800 ≥ 700
A, % ≥ 9 ≥ 10 ≥ 11 ≥ 12
Z, % ≥ 40 ≥ 45 ≥ 50 ≥ 50
KV, J ≥ 30 ≥ 35 ≥ 45 ≥ 45

Technologische Verarbeitung:

Technological treatment processes Possible application Temperature, °C
Hot forming Forging + (1050 – 850)
Rolling + (1180 – 850)
Treatment process Heat treatment Quenching + 830-860/w,o
Tempering + 540 – 660
Precipitate strengthening Supersaturation
Ageing
Annealing Normalising + (850 – 880)
Soft annealing + (650 – 700)
Thermochemical treatment Carburising
Other

INTERNATIONALE STAHLSORTEN:

ISO EN Russia
31CrNiMo8 ISO 683-1 1987 30CrNiMo8 EN 10083-1 1996
US Japan China