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30HGS

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TOUGHENING AND STRUCTURAL ALLOY STEEL

NORM: PN-89/H-84030/04

Anmeldung:

Steel adjusted for loaded spindles, pins, gears, levers; parts of clouth, gear train, flanges and bushings, for high toughness components such as axles and shafts; compressor vane and aircraft structure pipes.

Chemische Zusammensetzung:

CMnSiPSCrNiMoVWTiCuInne
0,28 - 0,350,80 - 1,100,90 - 1,20Max 0,035Max 0,0350,80 - 1,10Max 0,30Max 0,10Max 0,05Max 0,20Max 0,05Max 0,25-

Mechanische Eigenschaften:

Property Symbol Unit After heat treatment
Ultimate tensile strength Rm MPa ≥ 1080
Yield stress Re (Rp0,2) MPa ≥ 830
Elongation A % ≥ 10
Reduction of area Z % ≥ 45
Impact energy KV J ≥ 45

Technologische Verarbeitung:

Technological treatment processes Possible application Temperature, °C
Hot forming Forging + (1050 – 850)
Rolling + (1230 – 840)
Treatment Heat treatment Quenching + 860-880/o
Tempering + 500 – 650
Precipitate strengthening Supersaturation – –
Ageing – –
Annealing Normalising + (870 – 890)
Soft annealing + (680 – 720)
Thermochemical treatment Carburising – –
Other – –

INTERNATIONALE STAHLSORTEN:

ISO EN Russia
– – – – ~ 30ChGS GOST 4543 1971
US Japan China
– – – – ~ 30CrMnSi GB 3077-88