hard chrome steel round bar

hard chrome steel round bar   Product Description

Piston Rod
Size: Ø 6-300mm
Length: 3m -8m
Material: 45# DIN CK45/JIS 45C
Tolerance: ISO f7
Chrome thickness: 20~30micron
Hardness of  the chrome layer: 850HV(min)
Roughness: Ra 0.2micron (max)
Straightness: 0.2/1000mm
Mechanical properties:  (CK45/JIS 45C)
Yield Strength ≥320 Mpa
Tensile Strength ≥580 Mpa
Elongation ≥ 15%

Chemical Composition:

Material	C%	Mn%	Si%	S%	P%	V%	Cr%
Ck45	0.42-0.50	0.50-0.80	0.04	0.035	0.035
ST52	0.22	1.6	0.55	0.035	0.04
20MnV6	0.16-0.22	1.30-1.70	0.10-0.50	0.035	0.035	0.10-0.20
42CrMo4	0.38-0.45	0.60-0.90	0.15-0.40	0.03	0.03		0.90-1.20
40Cr	0.37-0.45	0.50-0.80	0.17-0.37				0.80-1.10

Mechancial Properties:

Material	T.S  N/MM2	Y.S  N/MM2	E%(MIN)	CHARPY	CONDITION
CK45	610	355	15	>41J	NORMALIZE
CK45	800	630	20	>41J	Q + T
ST52	500	355	22		NORMALIZE
20MnV6	750	590	12	>40J	NORMALIZE
42CrMo4	980	850	14	>47J	Q + T
40Cr	1000	800	10		Q + T

 Supply condition:

1	Hard chrome plated
2	Induction hardened
3	Quenched & Tempered
4	Induction hardened with Q&T

  Production Flow   Products Show   Equipments Show   Inspection   Packaging Show   Application   FAQ   1.Q: How many days of your delivery?    A:  The general delivery is 30~50 days according to your quantity.    2.Q: What's your main market?    A: We mainly export to Middle East and South Eastern Asia. And this year our products enter into South America.