The Chrome Plated C20 Tube is a non-heat-treated hollow piston rod made from C20 low-carbon seamless steel tube, known for excellent weldability and good ductility. Available in OD φ25–300 mm, up to 8000 mm long, it features ISO f7 tolerance, a hard chrome layer of 850–1150 HV, welded hydraulic cylinders and fluid-passage applications, it offers full customization of dimensions, wall thickness, heat treatment and surface finishing.

The Carburized C20 Rod features a case-hardened surface of 58–64 HRC (effective depth 0.5–2.0 mm) with a tough low-carbon core (≤170 HB). Available in φ6–300 mm, up to 8000 mm long, it meets ISO f7 tolerance with a precision ground finish. Its “hard case, tough core” structure provides excellent wear and impact resistance for medium/low-pressure hydraulic cylinders and general industrial equipment. Full customization of dimensions, case depth and additional surface treatments is supported.

The Chrome Plated 25Mn Tube is a non-heat-treated hollow piston rod made from 25Mn seamless steel tube, offering a good strength-toughness balance with excellent machinability. 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 200-hour salt spray rating 9. Ideal for lightweight, fluid-passage hydraulic cylinders, it supports full customization of dimensions, wall thickness, heat treatment and surface finishing.

The Nitrocarburized 25Mn Rod features a QPQ-treated surface (diffusion zone 0.30–0.40 mm, white layer ≥25 µm) delivering ≥600 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 25Mn steel with good machinability, this chrome-free rod provides superior wear and corrosion resistance for hydraulic cylinders and outdoor equipment, with full customization supported.

The Chrome Plated 25Mn Rod (Quenched & Tempered) combines 25Mn steel's good hardenability with enhanced core strength through Q&T treatment, achieving 200–300 HB hardness. Available in φ6–300 mm diameters and lengths up to 8000 mm, it features ISO f7 tolerance and a hard chrome layer of 850–1150 HV. With 96-hour salt spray rating 9, it is ideal for medium-to-high-pressure hydraulic cylinders. Full customization of dimensions, heat treatment and surface finishing is supported.

The Chrome Plated ST52 Tube is a non-heat-treated hollow piston rod made from ST52 seamless steel tube, known for excellent weldability and balanced mechanical properties. 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 200-hour salt spray rating 9. Ideal for lightweight, fluid-passage or welded hydraulic cylinders, it offers full customization of dimensions, wall thickness, heat treatment and surface finishing.

The Nitrocarburized ST52 Rod features a QPQ-treated surface (diffusion zone 0.30–0.40 mm, white layer ≥25 µm) delivering ≥600 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 ST52 steel with excellent weldability, this chrome-free, dimensionally stable rod provides superior wear and corrosion resistance for welded hydraulic cylinders and outdoor equipment, with full customization supported.

The Chrome Plated ST52 Rod (Quenched & Tempered) combines ST52's excellent weldability with enhanced core strength through Q&T treatment, achieving 200–280 HB hardness. Available in φ6–300 mm diameters and lengths up to 8000 mm, it features ISO f7 tolerance and a hard chrome layer of 850–1150 HV. With 200-hour salt spray rating 9, it is ideal for medium-to-high-pressure welded hydraulic cylinders. Full customization of dimensions, heat treatment and surface finishing is supported.

The Chrome Plated ST52 Rod is a non-heat-treated precision piston rod made from ST52 carbon-manganese steel, known for its excellent weldability and balanced strength-toughness combination. Available in diameters φ6–300 mm and lengths up to 8000 mm, it features ISO f7 tolerance and a hard chrome layer of 850–1150 HV. With 96-hour salt spray rating 9, it is a cost-effective choice for medium-duty hydraulic cylinders, construction and agricultural machinery. Full customization of dimensions, heat treatment and surface finishing is supported.

The Chrome Plated CK45 Tube is a non-heat-treated, hollow piston rod made from CK45 seamless steel tube. Available in OD φ25–300 mm and lengths up to 8000 mm, it features ISO f7 tolerance, a hard chrome layer of 850–1150 HV, and 96-hour salt spray rating 9. Ideal for weight-sensitive and fluid-passage hydraulic cylinders, it offers full customization of dimensions, wall thickness, heat treatment, and surface finishing for diverse industrial applications.

The Nitrocarburized CK45 Rod features a QPQ-treated surface (diffusion zone 0.30–0.40 mm, white layer ≥25 µm) delivering ≥600 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. This chrome-free, dimensionally stable rod provides excellent wear and corrosion resistance for hydraulic and general industrial cylinders, with full customization supported.

The Chrome Plated CK45 Rod (Q&T + I.H.) combines a quenched & tempered core (220–360 HB) with an induction-hardened surface (50–62 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 200-hour salt spray rating 9. Designed for extreme heavy-duty cylinders, it offers maximum core strength, surface wear resistance, and full customization.