Premium Chrome Plated Honed Tube - St 52 Bk+S H7 H8 H9
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Product Highlights
- Premium Material Quality: Fabricated from finest quality carbon steel including St52, Ck45, 16mn, 42CrMo, and E355.
- Flexible Customization: Full customization available from samples, designs, or specific requirements.
- Versatile Application: Ideal for hydraulic systems, automobiles, oil/gas drilling, machinery, and mining.
- Comprehensive Warranty: Includes 1-year warranty and 1-year after-sales service coverage.
- Multiple Delivery Conditions: Available in BK, BKW, BKS, GBK, and NBK conditions per EN10305 and DIN2391.
- Rigorous Quality Inspection: Includes chemical analysis, tensile testing, flattening tests, and NDT leak checks.
- Flexible Length Options: Standard lengths range from 3m to 12m, cut to customer requirements.
Product Attributes
- Customization
- Available
- After-sales Service
- 1 Year
- Warranty
- 1 Year
- Model NO.
- MD-8101650444003720
- Type
- Seamless
- Technique
- Cold Drawn
- Material
- Carbon Steel
- Surface Treatment
- Polished
- Usage
- Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Mining, Special Purpose
- Section Shape
- Round
- Name
- Honed Tube
- Steel Grade
- St52, Ck45, 16mn, 42CrMo, E355
- Condition
- Honed
- Roughness
- 0.2-0.8μm
- Straightness
- 0.5/1000
- Standard Length
- 3m~12m
- Internal Diameter Accuracy
- H7, H8, H9,H10
- Packing
- Standard Export Package
- Technology
- Seamless, Hot Rolled, Cold Rolled, Cold Drawn
- Transport Package
- in Bundles or According to Customers' Request
- Specification
- 1/2"~64"
- Trademark
- kingmetal
- Origin
- China
- Production Capacity
- 20000ton/Month
Product Images of Premium Chrome Plated Honed Tube - St 52 Bk+S H7 H8 H9
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Premium Chrome Plated Honed Tube - St 52 Bk+S H7 H8 H9 -
Premium Chrome Plated Honed Tube - St 52 Bk+S H7 H8 H9 -
Premium Chrome Plated Honed Tube - St 52 Bk+S H7 H8 H9 -
Premium Chrome Plated Honed Tube - St 52 Bk+S H7 H8 H9 -
Premium Chrome Plated Honed Tube - St 52 Bk+S H7 H8 H9 -
Premium Chrome Plated Honed Tube - St 52 Bk+S H7 H8 H9 -
Premium Chrome Plated Honed Tube - St 52 Bk+S H7 H8 H9
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Product Description
St 52 BK+S H7 H8 H9 Honed tube Chrome plated hollow bar
HONED TUBES / COLD DRAWN SEAMLESS HONED TUBES / SKIVED / BURNISHED TUBES
Hydraulic Seamless Honed Tubes are fabricated using finest quality metal which is acquired from legitimate vendors. Our illustrious designing team uses latest techniques to contrive Precision Honed Tubes and Cylinder Honed Tubes. Latest machinery is equipped to produce Mild Steel Hydraulic Honed Tubes in all national and international standards.
According to the customer's requirement, Hydraulic Honed Tubes and Air Cylinder Honed Tubes are cut to the required length and width. We adopt metals of the best ever quality to design ST52 Honed Tubes and EN 10305-1 Honed Tubes. Modern fabrication techniques are deployed by our team to produce corrosion-resistant DIN 2391 Honed Tubes.
Our Carbon Steel Hydraulic Honed Tubes are smoothly finished to reassure you convenient installation. ST52 Hydraulic Honed Tubes that we manufacture are flexible and durable.
Our Seamless honed tuning equipment is preferred by many firms for their distinguished quality.
Chemical Composition:
| Standard | Grade | Chemical Components (%) | |||||
| Symbol | Material No. | C | Si | Mn | P | S | |
| DIN2391 | St 52 | 1.058 | ≤0.22 | ≤0.55 | ≤1.60 | ≤0.025 | ≤0.025 |
Delivery Conditions
The tubes shall be manufactured from cold drawn or cold rolled processes. The tubes shall be supplied in one of the delivery conditions as follows:
| Designation | Symbol | Description |
| Cold finished (hard) | BK | Tubes do not undergo heat treatment following the final cold forming and thus, have a rather high resistance to deformation. |
| Cold finished (soft) | BKW | The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding). |
| Cold finished and stress-relieved | BKS | Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. |
| Annealed | GBK | The last cold forming process is followed by annealing in a controlled atmosphere. |
| Normalized | NBK | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |
Delivery Condition Symbol in accordance with EN10305 and DIN2391
| Symbol in accordance with EN 10305 | Symbol in accordance with DIN2391 |
| +C | BK |
| +LC | BKW |
| +SR | BKS |
| +A | GBK |
| +N | NBK |
Mechanical Properties
| Mechanical properties at room temperature | |||||||||||||
| Steel Grade | Minimum values for the delivery condition | ||||||||||||
| Steel Name | Steel Number | BK | BKW | BKS | GBK | NBK | |||||||
| Rm | A % | Rm | A % | Rm | ReH | A % | Rm | A % | Rm | ReH | A % | ||
| Mpa | Mpa | Mpa | Mpa | Mpa | Mpa | Mpa | |||||||
| St 52 | 1.0580 | 640 | 4 | 580 | 7 | 580 | 420 | 10 | 490 | 22 | 490 to 630 | 355 | 22 |
Inspection and test list for the DIN 2391 Standard
| Inspection or test types | Test frequency | |
| Internal test | Acceptance test | |
| Chemical analysis | M | M |
| Tensile testing | M | One per tested batch |
| Flattening test or extension test | M | Two per tested batch |
| Dimension verification | M | M |
| Visual inspection | M | M |
| NDT in order to identify leaks | Individual | Individual |
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR241136". Items marked "
" are certified.
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Company Profile
Guangzhou Kingmetal Steel Industry Co., Ltd., is an Industry Group Company. It is a professional company in designing, producing and selling steel pipe, pipefittings and prefabricated house. We have our own big factories with modern machine line to make high quality products, which is mainly to be exported to oversea markets.
We have two factories. One is located in Wenzhou city, it was established in 1989. This factory is a leading seamless stainless steel pipe and pipefitting manufacturer in China. It occupied 114, 000 square meters, with fixed capital over 200 million and total amount 300 million. It owns 500 staffs including 80 advanced engineers. It owns perfect management system, vigorous technology supports, advanced production equipment and completed inspection equipment. The factory pay highly attention to enterprise foundation establishment, successfully was approved the authentication of PED and AD by TUV from German company, and the national special equipment license. Our products greatly provide for petroleum chemical, metallurgy, pharmaceutical machinery, paper making, food, shipbuilding, environmental protection, boiler, heater exchanger, pressure container, condensation, water, electricity and so on. The mainly grades we can provide are 304, 304L, 316, 316L, 321, 321H, 317L, 310S, 347H, 31803 etc.
Another factory is located in Guangzhou city, it was established in 2002. This factory is one of the largest prefab house corporation in southern China. It occupied 30, 000 square meters, with fixed capital over 40 million and total amount 100 million. It owns 200 staffs. Annual out put is more than 2 million square meter, and there have a stock of about 50 thousand square meter. These products include slope top prefab house, flat top prefab house, non-standard steel structure (warehouse, industrial shed), container house, mobile fence wall, sentry box etc. Our goods not only sold to domestic market but also extended to Southeast Asia, Middle East, Europe, Australia, Africa, and South America etc.
At the same time, we also are the agency of Bao Steel, Hengyang, Tianjin, Anshan, Pangang etc. Big group steel company. We offer the seamless carbon, welded carbon steel pipe, GI pipe, and special pipe. Fittings elbow, tee, reducer, cap, lap joint, flanges etc...This is better for our customer to buy the different products from China, while they are saving their time, but they can enjoy in our best serves.
We have advanced technology of management, we win the trust because of our good quality.
We have clannish conscientious and passionate salesman, we gladden and steady the customers with our best service.
We are pure-hearted and awaiting for your kind attention to our company.
About Our Factory & Business Background
- Address
- Room 703, Jinbi Lingxiu International Center, No. 3 North Junya Street, Guangzhou, China
-
Terms of Payment
- LC, T/T, D/P, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month, 1-3 months
Off Season Lead Time: within 15 workdays, one month -
Nearest Port
- Guangzhou Port, Shenzhen Port
-
Supply Chain Partners
- 200
Our Production Capability & Technical Expertise
- Main Products
- Steel Pipes, Pipes Fittings, Socket Fittings, Flange, Angle Bar, C Chanel, Steel Coils, Steel Plate, Valves, Grooved Fittings
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 3 people
Our Industry Experience & Global Business Record
-
Export Year
- 13 years
-
Main Markets
- North America, South America, Europe, Southeast Asia/ Mideast, Africa
-
Number of Foreign Trading Staff
- 10
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- No
FAQ
- What materials are used for the honed tubes?
- We use high-quality carbon steel grades including St52, Ck45, 16mn, 42CrMo, and E355.
- Can the tubes be customized to specific sizes?
- Yes, we offer full customization including length, internal diameter accuracy (H7-H10), and surface treatment based on your samples or designs.
- What is the warranty period for these tubes?
- We provide a 1-year warranty and 1-year after-sales service for all our honed tubes.
- What are the available delivery conditions?
- Tubes are available in Cold finished (BK), Cold finished soft (BKW), Cold finished stress-relieved (BKS), Annealed (GBK), and Normalized (NBK) conditions.
- What is the surface roughness of the honed tubes?
- The surface roughness ranges from 0.2 to 0.8 micrometers with a straightness of 0.5 per 1000mm.
- What industries can use these hydraulic tubes?
- These tubes are suitable for hydraulic systems, automobiles, oil and gas drilling, machinery industry, mining, and special purpose applications.
- Do you offer OEM and ODM services?
- Yes, we provide both OEM and ODM services with flexible customization options.
- What is the lead time for orders?
- Lead time is within 15 workdays during off-peak season and 1-3 months during peak season.
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