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material: ck45, sae1045, 4140, 4340, jis45c, 40cr, 20mnv6, 42crmo, ss431, ss430,
stainless: steel 304/316, etc
diameter: φ6-250mm
length: max 8m
tolerance：iso f7/on request
chrome layer: 20 micron (min) to 100 micron
hardness of the chrome layer: 850 hv(min)-1150hv
roughness: ra<=0.2u
straightness: <=0.15/1000
roundness: half of the tolerance iso f7/on request
delivery condition: hard chrome piston rod
quenched & tempered
induction hardened rod
q+t induction hardened rod
corrosion resistance: test in natural salt spray according to astm b 72-96 hours
packing: anti-rust oil to be spread on rod surface and each rod to be packed in paper roll and then in wooden case
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