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Stainless Steel Hard Chrome Plated Piston Rod CK45 ST52 20MNV6 42CRMO4 40CR

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Stainless Steel Hard Chrome Plated Piston Rod CK45 ST52 20MNV6 42CRMO4 40CR

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Place of Origin : China

MOQ : 5tons

Price : Negotiation

Packaging Details : IN BUNDLES

Delivery Time : 30-60DAYS

Payment Terms : T/T L/C

Supply Ability : 50000 TONS PER YEAR

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Stainless Steel Hard Chrome Plated Piston Rod CK45 ST52 20MNV6 42CRMO4 40CR

Material: CK45;ST52;20MnV6;42CrMo4;40Cr

CHEMICAL COMPOSITION(%)
　
Steel GradeC%Mn%Si%S%P%V%Ni%Cr%Mo%Cu%
CK450.42-0.500.50-0.800.17-0.37≤0.035≤0.035　/≤0.25≤0.25/　≤0.25
ST52≤0.22≤1.6≤0.55≤0.04≤0.040.02-0.15　//　/　　/
20MnV60.17-0.241.30-1.700.10-0.50≤0.035≤0.0350.10-0.20≤0.30≤0.30/　≤0.30
42CrMo40.38-0.450.5-0.80.17-0.37≤0.035≤0.0350.07-0.12≤0.030.90-1.200.15-0.25≤0.03
40Cr0.37-0.450.50-0.800.17-0.37≤0.035≤0.035　/≤0.300.80-1.1/　≤0.03

MECHANICAL PROPERTIES
　
MaterialTensile Strength
Rm (Mpa)		Yield Strength
Rel (Mpa)		Elogation
A%		CHARPYCONDITION
CK4561035515>41J Normalized
CK4580054020>41J Q+T
ST5250035522　 Normalized
20MnV675059012>41J Normalized
42CrMo498085014>47J Q+T
40Cr100080010　 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








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