Hollow Chrome Plated Bar ST52.3/CK45/SAE4140
Steel Grade:CK45/S45/SAE1045,SAE4140/ SCM440/42CrMo4,17-4PH,AISI630,ST52.3,16Mn,20Mn,27SiMn,E355,AISI431,SS304/316
Type: hollow steel bar, tempered, induction hardened
Metric OD Size: 6 mm 1000 mm Inch OD Size: OD 1/4" to 50".
Hard Chrome Plate Thickness: 15,20,25,30 Micron (or according to customer's request)
Surface Roughness:Ra < 0.4
OD Tolerance: ISO f7,f8,H7,H8
Ovality: half of the OD tolerance
Straightness: <0.2 mm/m
Salt Spray Test: ASTM B117-72hours/96hours,results evaluation refers to ISO4540,Level 9.
Package:anti rust oil on material and packed first by cardboard sleeve then in steel frame box.
We can supply machining survice according to detailed draft and other technic request can be disscussed.Welcome to send email to us for further cooperation.