The Chrome Plated 27SiMn Tube is a non-heat-treated hollow piston rod made from 27SiMn silicon-manganese alloy steel seamless tube, offering high strength and good toughness. Available in OD φ25–300 mm, up to 8000 mm long, it features ISO f7 tolerance, an 850–1150 HV hard chrome layer, and 96-hour salt spray rating 9. Ideal for ultra-high-pressure, heavy-duty or fluid-passage hydraulic cylinders, it supports full customization of dimensions, wall thickness, heat treatment and surface finishing.

The Nitrocarburized 27SiMn 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 27SiMn silicon-manganese steel with excellent nitriding response, this chrome-free rod provides superior wear and corrosion resistance for extreme heavy-duty hydraulic cylinders. Full customization supported.

The Chrome Plated 27SiMn 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, ISO f7 tolerance, and 96-hour salt spray rating 9. Engineered for the most severe ultra-high-pressure, heavy-load cylinders, it delivers unmatched strength and wear resistance. Full customization supported.

The Chrome Plated 27SiMn Rod (Induction Hardened) features a high-strength non-treated core (≤250 HB) 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 an 850–1150 HV hard chrome finish with 96-hour salt spray rating 9. Ideal for heavy-duty cylinders in mining and construction, it offers superior wear resistance with full customization supported.

The Chrome Plated 27SiMn Rod (Quenched & Tempered) features a silicon-manganese alloy steel core treated to 220–320 HB, delivering high strength and toughness. Available in φ6–300 mm, up to 8000 mm long, it meets ISO f7 tolerance and an 850–1150 HV hard chrome finish with 96-hour salt spray rating 9. Ideal for ultra-high-pressure, heavy-duty hydraulic cylinders in mining and construction equipment. Full customization of dimensions, heat treatment and surface finishing is supported.