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8620h/20mncrnimo 23crnimo7-4-7/25cr2ni2mo 18crnimo7-6/18crnimo 8740/40mncrnimo with first quality
Related specifications:
Australia : AS 1444-1996 X4317 or X4317H
Germany: EN10084-1998 1.6587 18CrNiMo6 or
1.6587H 18CrNiMo7-6H
Werkstoff 1.6587 18CrNiMo7-6 or 17CrNiMo6
DIN 17210 17CrNiMo6
Great Britain BS970: PART 3: 1991 820M17/822M17
BS970: 1955 - EN354/EN355
U.S.A. SAE 4317
AISI 4317
Chemical Composition (%):
Carbon 0.15-0.20
Silicon 0.4 max
Manganese 0.40-0.60
Phosphorus 0.04 max
Sulphur 0.04 max
Chromium 1.50-1.80
Molybdenum 0.25-0.35
Nickel: 1.40-1.70
Process: EAF+LF+VOD+Forged+Heat Treatment(optional)
SIZE RANGE:
Round:
Hot Forged: 80mm-1200mm
SURFACE FINISHES:
Black, Peeled (K12), Cold Drawn, Turned & Polished (H10, H11), Precision Ground (H9, H8)
contact person: Anndy wang
email:anndy(at)shunitesteel(dot)com
skype:amywang20131
8620h/20mncrnimo 23crnimo7-4-7/25cr2ni2mo 18crnimo7-6/18crnimo 8740/40mncrnimo with first quality
