DIN 17200 CK45 40Cr 20MnV6 72mm QT biella cromata per cilindro idraulico

Nome: Stelo del pistone cromato

Tipo: solido / cavo

Materiale: CK45, 20MnV6,42CrMo4, 40Cr

D .: 40-400mm

PESO: ≥5 mm

Lega o no: non lega

Lunghezza: fino a 12000 mm in base alle esigenze del cliente

Luogo d'origine: Zhejiang, Cina (continente)

Trattamento di superficie: cromato, nichelato

Trattamento termico: ricotto, QT

CHEMICAL COMPOSITION(%)
Steel Grade	C%	Mn%	Si%	S%	P%	V%	Ni%	Cr%	Mo%	Cu%
CK45	0.42-0.50	0.50-0.80	0.17-0.37	≤0.035	≤0.035	/	≤0.25	≤0.25	/	≤0.25
20MnV6	0.17-0.24	1.30-1.70	0.10-0.50	≤0.035	≤0.035	0.10-0.20	≤0.30	≤0.30	/	≤0.30
42CrMo4	0.38-0.45	0.5-0.8	0.17-0.37	≤0.035	≤0.035	0.07-0.12	≤0.03	0.90-1.20	0.15-0.25	≤0.03
40Cr	0.37-0.45	0.50-0.80	0.17-0.37	≤0.035	≤0.035	/	≤0.30	0.80-1.1	/	≤0.03

MECHANICAL PROPERTIES
Material		Tensile Strength     Rm (Mpa)	Yield Strength    Rel (Mpa)		Elogation     A%		CHARPY		CONDITION
CK45		610	355		15		>41J		Normalized
CK45		800	540		20		>41J		Q+T
20MnV6		750	590		12		>41J		Normalized
42CrMo4		980	850		14		>47J		Q+T
40Cr		1000	800		10				Q+T

SUPPLY CONDITION	Ground and chrome plated
CHROME THICKNESS	20 to 30 micron
SURFACE ROUGHNESS	Ra≤0.2 micron and Rt≤2 micro
TOLERANCE ON DIA	ISO f7 on the diameter
OVALITY	Half of the tolerance ISO f7
STRAGHNESS	≤0.2MM/M
SURFACE HARDNEDD	850-1150 HV(vickers 100g)
COHESION	No craks,breaking or detaching after thermic shock (warming up at 3200 celsius degrees and cooling in water)
POROSITY	Test according to ISO 1456/1458 and result yaluation according to ISO 4540   rating 8-10
CORROSION RESISTANCE	Test in natural salt spray according to ASTM B117-120hours
Results evaluation	accordin to ISO4540 RATING7-10
WELDABILITY	Good
PACKING	Anti rust oil to be applied on material and each rod to be packed in paper         sleeve
CERTIFICATE	All certificate related with material heat treatment and plating is required

Parole chiave: biella CK45, biella cromata, stelo 40Cr