To broaden the future, 1020 Honed Tube, Precision Honed Pipe, Seamless Cold Drawn Tube will never forget our original aspiration, and we will strive unremittingly, and move towards new stage! Persisting in 'High quality, Prompt Delivery, Competitive Price', we have established long-term cooperation with clients from both overseas and domestically and get new and old clients' high comments. Our company always takes the quality and credit standing as the first, we are doing everything we can to fulfill customers' needs while constantly improving our quality. We warmly welcome new and old customers in domestic and overseas market cooperate with us!
Chrome Plated Steel Bar Introduction
Chrome Plated Steel Bars can be divided into standard bar, induction bar and tempered & quenched bar. Surface of bar goes through special grinding and hard chrome plating process, and then mirror polishing. They always work together with precision tubes.
Chrome Plated Steel Bar technical parameters and Details
Application: hydraulic cylinder, pneumatic cylinder, oil cylinder, telescopic cylinder.
Original: Jiangsu, China
Certification: ISO9001.
Material: CK45, ST52, E355, 42CrMo4
Payment term: TT, LC
Delivery date: usually 20 to 40 days.
Packing: each packed in peper sleeve, and then in bundle.
Market: Middle East/ Africa/Asia/South America/Europe/North America
MOQ: Depends on exact size and material.
Mechanical Properties:
Material | T.S (MPA) | Y.S (MPA) | Elongation % | CHARPY | CONDITION |
CK45 | ≥610 | ≥355 | ≥15 | >41J | NORMALIZE |
CK45 | ≥800 | ≥630 | ≥20 | >41J | Q + T |
ST52 | ≥500 | ≥355 | ≥22 | NORMALIZE | |
20MnV6 | ≥750 | ≥590 | ≥12 | >40J | NORMALIZE |
42CrMo4 | ≥980 | ≥850 | ≥14 | >47J | Q + T |
40Cr | ≥1000 | ≥800 | ≥10 | Q + T |
Chemical Properties:
Material | C% | Mn% | Si% | S% | P% | V% | Cr% |
CK45 | 0.42-0.50 | 0.50-0.80 | ≤0.04 | ≤0.035 | 0.035 | ≤ 0.25 | |
ST52 | ≤0.22 | ≤1.6 | ≤0.55 | ≤0.04 | ≤0.04 | ||
20MnV6 | 0.16-0.22 | 1.30-1.70 | 0.10-0.50 | ≤0.035 | ≤0.035 | 0.10-0.20 | ≤0.30 |
42CrMo4 | 0.38-0.45 | 0.60-0.90 | 0.15-0.40 | ≤0.035 | ≤0.035 | 0.07-0.12 | 0.90-1.20 |
40Cr | 0.37-0.45 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | 0.80-1.10 |
Production process
Raw material –peeling – straightening – quenched and tempered – cutting – grinding –straightening – grinding – polishing – chrome plating – polishing - oiled plated - packing

Our Advantage
1. We has two factories of 40000 square meters and totally 150 employees to promise the Honed Tubes In Stock best quality control;
2. According to the cylinder pressure and inside diameter size ,different hydraulic cylinder honed tube Would be choosed ;
3. Our motivation is --- customers’ satisfaction smile;
4. Our believing is --- pay attention to every detail;
5. Our wish is ----perfect co-operation.
'Honest and trustworthy, seeking truth from facts' is the ethical concept that our company has always followed, and it is also the company's intangible asset. In the tide of market economy, we always adhere to the business philosophy of ensuring quality and mutual benefit to provide customers with high-quality Black Chrome 420 8mm Stainless Steel Square Bar. In recent years, our company has improved the staff's quality by continuously strengthening the enterprise's management consciousness and formed its own unique management mode in the development process. With exceptional technology, strict quality management and excellent products, our business has acquired a good reputation in the industry.
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