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