Grade：ST 52
Size range:
Inside diameter from 40 to 300mm,
Max length 16m.
Straightness: 0.5 /1000
Tolerance EXT: ISO f7
Tolerance INT: ISO H8
Roughness(Ra): 0.2 to 0.4µ
Chrome thickness: 20 TO 50 Micron
Type：cold drawing, normalizing treatment, honing, chrome outside surface.
Length: unfixed length or fixed length
Impact test: -20℃, 27 J (only for special requirement)
Conservation: Anti rust oiled coating on the inside and outside of the surface, plastic caps at both ends.
Package: Anti rust oil to be spread on rod surface and each rod to be packed in paper roll and then in wooden box.
