Steel grade: CK45, ST52,42CrMo4, 20MnV6,Gr.20
Specification length: Φ6 ～Φ12 800-2000mm
Φ16 ～Φ40 1200-4000mm
Φ45 ～Φ220 1500-8000mm
Category： Normal
Quenched and tempered
Induction hardened
Quenched ,tempered and induction hardened
Supply Condition: Ground and chrome plated
Chrome Thickness: 20 to 30 micron
Surface Roughness: Ra≤0.2 micron
Tolerances On DIA: ISO f7 on the diameter
Ellipticity: Half of the tolerance ISO f7
Straightness: ≤0.2MM/M
Surface hardness: 850-1150HV (Vickers 100g)
Cohesion: NO cracks, breaking or detaching after thermic
shock(warming up at 300 Celsius degrees and cooling
in water)
Porosity: Test according to ISO 1456/1458 and result according
to ISO 4540 rating 8-10
Corrosion Resistance: Test in natural salt spray according to ASTMB117-
96hoursResults evaluation according to ISO
4540RATING7-10
Weld Ability: 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
Qt Hardness: HB220-280
Induction Hardness: Depth 1.2 to 2 mm and hardness HRC 50-55