The Chrome Plated 40Cr Tube is a non-heat-treated hollow piston rod made from 40Cr alloy steel seamless tube, offering higher strength and good hardenability. Available in OD φ25–300 mm, up to 8000 mm long, it features ISO f7 tolerance, a hard chrome layer of 850–1150 HV, and 96-hour salt spray rating 9. Ideal for heavy-duty, lightweight or fluid-passage hydraulic cylinders, it supports full customization of dimensions, wall thickness, heat treatment and surface finishing.

The Nitrocarburized 40Cr Rod features a QPQ-treated surface (diffusion zone 0.30–0.40 mm, white layer ≥25 µm) achieving ≥650 HV hardness without chrome plating. Available in φ6–300 mm, up to 8000 mm long, it meets ISO f7 tolerance and 200-hour salt spray rating 9. Built on 40Cr alloy steel with superior nitriding response, this chrome-free rod provides exceptional wear and corrosion resistance for demanding hydraulic cylinders, with full customization supported.

The Chrome Plated 40Cr Rod (Q&T + I.H.) combines a quenched & tempered core (220–320 HB) with an induction-hardened surface (52–62 HRC, depth 0.5–3.5 mm) and hard chrome plating (850–1150 HV). Available in φ6–300 mm, up to 8000 mm long, it meets ISO f7 tolerance and 96-hour salt spray rating 9. Designed for extreme heavy-duty cylinders, it offers superior core strength and wear resistance, with full customization supported.

The Chrome Plated 40Cr Rod (Induction Hardened) combines a tough non-hardened core with an induction-hardened surface of 52–62 HRC, depth 0.5–3.5 mm. Available in φ6–300 mm, up to 8000 mm long, it meets ISO f7 tolerance and features an 850–1150 HV hard chrome finish with 96-hour salt spray rating 9. Its superior wear resistance is ideal for heavy-duty hydraulic cylinders in harsh environments. Full customization of dimensions, hardening depth, and surface treatments is supported.

The Chrome Plated 40Cr Rod (Quenched & Tempered) features a Q&T treated alloy steel core of 220–320 HB, offering enhanced strength and toughness. Available in φ6–300 mm, up to 8000 mm long, it meets ISO f7 tolerance and a hard chrome layer of 850–1150 HV. With 96-hour salt spray rating 9, it is ideal for heavy-duty hydraulic cylinders. Full customization of dimensions, heat treatment and surface finishing is supported.