With a positive and progressive attitude to customer's interest, our enterprise continually improves our products excellent to meet the wants of customers and further focuses on safety, reliability, environmental requirements, and innovation of SRB tube, Conventional Welding Rotator, Rotary Welding Positioner. We welcome new and previous customers from all walks of lifestyle to call us for upcoming business enterprise interactions and reach mutual accomplishment! Since the establishment of the company, in the process of wholeheartedly providing high-quality products and services for customers, our company always adheres to the first strategy of enterprise development with information resources, drives product innovation with service innovation and quality innovation with scientific and technological progress.
Tempered Chrome Bar Introduction
Chrome plated 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.
Tempered Chrome 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 |
Experience and markets
Our factory has more than 20years working experiences on researching and selling. Products are well sailed all over the world, got many compliments from customers.

Our Advantages
a. Extensive production experience: we are specialized in honed tubes, skived tubes, cold drawn pipe, and chrome bar with an experience of 20 years.
b. Complete production facilities: owning cold drawn machine, skived and roller burnished machine, honing machine, precision centerless grinding machine, straightening machine, fine polishing machine, precision lathe, milling and drilling machine, roller press and other advanced equipments. Our technicians will do regular scheduled maintenance on these machines to guarantee them work well.
c. Strict Physical/Chemical testing procedures: meeting the requirements of the product design and process, providing reliable testing data.
d. Short Delivery time: Usually one container 20 days. We also stock some standard-sized tubes and bars.
e. Safe packing: anti-rust oil be spread on tubes and bars before shipping, plastic caps on tube ends to protect inside surface, each bar be protected with cardboard tube.
Production process
Raw material –peeling – straightening – quenched and tempered – cutting – grinding – straightening – grinding – polishing – chrome plating – polishing - oiled plated - packing

With efficient manufacturing capabilities, we ensure that the quality and supply capabilities of our Quenched and Tempered Chrome Bar for Horizontal Cylinder can always meet the dynamic requirements of the market. When you are keen on any of our goods following you view our product list, be sure to feel free to make contact with us for inquiries. Our company carries out product research and development and production with continuous innovation, provides customers with multi-level value and becomes a reliable professional intelligent partner of customers.
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