CK45 Hard Chrome Plated Bar, Brand Name : hengtong

We are offering hard chrome plated bar.
1. Supply condition
ground and chrome plated
2. Chrome thickness
20 to 30 micron
3. Surface roughness
ra≤0.2 micron and rt≤2 micro
4. Tolerances on dia
iso f7 on the diameter
5.ovality
half of the tolerance iso f7
6. Straightness
≤0.2mmm
7. Surface hardness
850-1150hv (vickers 100g)
8.cohesion
no cracks,breaking or detaching after thermic shock(warming up at 300 celsius degrees and cooling in water)
9 .porosity
test according to iso 14561458 and result yaluation according to iso 4540 rating 8-10
10 corrosion resistance
test in natural salt spray according to astm b 117-72hours
results evaluation according to iso 4540 rating 7-10
11. Weldability
good
12. Packing
anti rust oil to be applied on material and each rod to be packed in paper sleeve