Agriculture›
Apparel and fashion accessories›
Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›
Agriculture›
Apparel and fashion accessories›
Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›

The item is a seamless carbon‑steel tube intended for hydraulic cylinder assemblies where high precision is essential. It is offered in outer diameters from 30 mm to 250 mm, wall thicknesses ranging 3 mm to 35 mm, and standard lengths of 3 m to 5.8 m. Dimensional control follows an h8 tolerance and straightness is limited to 0.5 mm per 1000 mm. The material grades supplied include ST52, ST37, 16Mn and Q345, all meeting DIN, GB, ASTM and API requirements.
In the hydraulic industry, these grades are typical for components that must endure cyclic loading and high pressure, with ST52 providing superior tensile strength. The internal surface is usually honed to a roughness of Ra 0.2 µm, which is standard for reducing fluid resistance. Optional surface treatments such as oil‑based paint, galvanising or chrome plating can be applied to enhance corrosion resistance. Typical pressure capabilities reach 250 bar for lower grades and exceed 350 bar for high‑strength alloys.
Primary users include manufacturers of agricultural machinery, construction equipment and large‑scale fluid‑power systems that require tight bore tolerances. The tubes are packed in bundled units with protective plastic caps and sealed bags, and the supplier states a standard delivery period of 30 days. Payment terms are T/T or L/C, with the possibility to negotiate FOB, CIF or other Incoterms according to the buyer’s freight strategy.
| Outer Diameter (OD) | 30‑250 mm |
| Wall Thickness | 3‑35 mm |
| Length | 3‑5.8 m |
| Dimensional Tolerance | h8 (ISO 286‑1) |
| Straightness | 0.5 mm per 1000 mm |
| Material Grade | Carbon steel ST52, ST37, 16Mn, Q345 |
| Standard Compliance | DIN, GB, ASTM, API |
| Typical Yield Strength | typical 355 MPa for ST52 grade |
| Typical Surface Roughness (Ra) | typical 0.2 µm after honing |
| Typical Packaging | standard bundled with plastic caps and protective bag |
Yishui Guangju Hydraulic Cylinder Manufacturing Co.,LTD is situated in Cuijiayu Town, Yishui County, Linyi, Shandong Province, China. The supplier carries a harbour‑level trust tier, reflecting a basic verification of its corporate details on the platform. It focuses on manufacturing hydraulic cylinder components, notably seamless steel tubes for fluid‑power systems.
Although the public profile does not provide a response rate, the company indicates capability to produce both standard and custom‑size tubes, offering surface‑treatment options such as painting, galvanising or chrome plating. Non‑standard dimensions are available on customer request, subject to technical quotation.
Precision seamless steel tubes are engineered for hydraulic cylinder applications with OD ranging from 30-250mm and wall thickness of 3-35mm. Manufactured to h8 tolerance and 0.5mm/1000mm straightness, these tubes meet DIN, GB, ASTM, and API standards using grades ST52, ST37, 16Mn, and Q345. Available in 3-5.8m lengths, they are widely used in hydraulic systems, agricultural machinery, and heavy equipment manufacturing. Ideal for import buyers seeking high-precision cold-drawn seamless tubing for industrial fluid power applications.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | Contact Supplier |
| Response Rate | New Supplier |
Confirm the exact outer diameter, wall thickness and selected steel grade, and ask for the mill test report and material certificate that reference the relevant DIN/ASTM specification. This verification helps ensure the tube meets the pressure and strength requirements of your hydraulic system.
The supplier usually ships within a 30‑day window; discuss whether FOB, CIF or EXW best matches your freight plan and verify the Incoterm before finalising the contract. Payment is normally by T/T, with L/C possible on agreement.
Arrange for a pre‑shipment inspection focusing on h8 tolerance, straightness and surface roughness; obtain the inspection certificate, dimensional report and packing list to present to customs and quality teams.
Active buying requirements from importers looking for Similar products
Compare alternatives, find similar products and connect with verified suppliers
When sourcing Seamless Steel Pipes Hydraulic Cylinder Tubes for your business, securing the right balance of quality and cost is essential. Yishui Guangju Hydraulic Cylinder Manufacturing Co.,LTD, a verified supplier based in China, offers this product with key specifications including ST52, 16Mn, Q345, 20#, 45#, ST37 seamless cold-drawn/honed tube, Carbon steel with manganese alloying; C 0.15-0.45%, Mn 0.6-1.6%, Si 0.1-0.5%, and OD: 30-250mm; Wall Thickness: 3-35mm; Length: 3-5.8m; Tolerance: h8; Straightness: 0.5mm/1000mm. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1100/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7304.31, making it a staple in the Steel Pipes sector with strong demand from importing countries worldwide.
Importing Seamless Steel Pipes Hydr requires careful attention to shipping logistics, customs compliance, and secure payment terms. Yishui Guangju Hydraulic Cylinder Manufacturing Co.,LTD offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 7304.31 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading B2B marketplace designed to make cross-border trade secure and efficient.
Finding trustworthy partners is the foundation of successful importing. The supplier of this Seamless Steel Pipes Hydr has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Steel Pipes category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Importing Seamless Steel Pipes Hydr requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 7304.31 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
The current listed wholesale price for Seamless Steel Pipes Hydraulic Cylinder Tubes from Yishui Guangju Hydraulic Cylinder Manufacturing Co.,LTD is $1100/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Yishui Guangju Hydraulic Cylinder Manufacturing Co.,LTD through EximNext.
The supplier, Yishui Guangju Hydraulic Cylinder Manufacturing Co.,LTD, has set a Minimum Order Quantity (MOQ) of 1 Bags for Seamless Steel Pipes Hydr. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
For international shipping and customs clearance, Seamless Steel Pipes Hydraulic Cylinder Tubes is classified under HS Code 7304.31. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
To import Seamless Steel Pipes Hydr from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Yishui Guangju Hydraulic Cylinder Manufacturing Co.,LTD. Ensure you have the necessary import licenses for Steel Pipes products in your destination country.
Yes, Yishui Guangju Hydraulic Cylinder Manufacturing Co.,LTD is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
The key specifications for Seamless Steel Pipes Hydraulic Cylinder Tubes supplied by Yishui Guangju Hydraulic Cylinder Manufacturing Co.,LTD include ST52, 16Mn, Q345, 20#, 45#, ST37 seamless cold-drawn/honed tube, Carbon steel with manganese alloying; C 0.15-0.45%, Mn 0.6-1.6%, Si 0.1-0.5%, and OD: 30-250mm; Wall Thickness: 3-35mm; Length: 3-5.8m; Tolerance: h8; Straightness: 0.5mm/1000mm. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
Yishui Guangju Hydraulic Cylinder Manufacturing Co.,LTD offers Seamless Steel Pipes Hydr with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Seamless Steel Pipes Hydr is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Yishui Guangju Hydraulic Cylinder Manufacturing Co.,LTD through our platform.
Yishui Guangju Hydraulic Cylinder Manufacturing Co.,LTD maintains international quality certifications. These ensure that the Seamless Steel Pipes Hydr meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Yishui Guangju Hydraulic Cylinder Manufacturing Co.,LTD will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Yishui Guangju Hydraulic Cylinder Manufacturing Co.,LTD.
Discover more products in Steel Pipes from verified suppliers worldwide.