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Din cold drawing and BA seamless tube 7-12
The Din cold drawing and BA seamless tube 7-12 from Shanghai Tianyang Steel Tube Co., Ltd. is a precision-manufactured carbon steel tube with an outer diameter range of 7 to 12 millimeters, produced using cold drawing techniques to achieve tight dimensional tolerances and a bright annealed (BA) surface finish. The material is specified as carbon steel with no alloying elements listed, consistent with standard DIN 2391 requirements for seamless tubes used in mechanical and hydraulic applications. The wall thickness is not stated but typically falls between 0.5 mm and 1.2 mm for this diameter range in industrial practice.
Cold drawing enhances the mechanical properties of carbon steel by work hardening, increasing tensile strength and surface hardness compared to hot-rolled equivalents. The BA finish provides a reflective, oxide-free surface that resists corrosion and reduces friction, making it suitable for applications requiring clean internal surfaces. This product does not claim compliance with specific DIN or ISO standards, but its construction aligns with typical industry norms for precision seamless tubing in Europe and Asia. No plating, coating, or heat treatment is indicated beyond the BA annealing process.
These tubes are commonly used in hydraulic cylinders, automotive suspension components, and precision machinery shafts where dimensional stability and surface quality are critical. Buyers include manufacturers of industrial automation systems, automotive part suppliers, and engineering firms sourcing components for high-pressure fluid systems. Trade terms are not specified in the listing, but FOB and CIF are referenced in the custom specification. Packaging is not detailed, but standard practice involves bundling with rust-inhibiting paper and wooden crates for sea freight. MOQ and lead time are not provided and must be confirmed directly with the supplier.
| Material | Carbon steel (cold drawn, BA finish) |
| Outer diameter | 7 mm to 12 mm |
| Surface finish | Bright annealed (BA) - smooth, reflective, oxide-free |
| Manufacturing process | Cold drawn seamless |
| Typical wall thickness | 0.5 mm to 1.2 mm (standard for 7-12 mm OD tubes) |
| Typical tensile strength | 450 MPa to 600 MPa (typical for cold drawn carbon steel tubes) |
| Typical elongation | 15% to 25% (standard for annealed carbon steel tubes) |
| Typical dimensional tolerance | ±0.05 mm for OD, ±10% for wall thickness (standard for cold drawn seamless tubes) |
| Typical straightness | 1 mm per meter (standard for precision seamless tubing) |
| Typical internal cleanliness | Free of oil residue and mill scale (standard for BA finish tubes) |
Shanghai Tianyang Steel Tube Co., Ltd. is a supplier based in Fengxian District, Shanghai, with a registered address at No.4638 Jinqian Road. The company operates as a manufacturer or trader of steel tubes, as indicated by its product focus and location in a major industrial hub. The listing shows no verified certifications, no export history, and no response rate, indicating limited digital engagement or transparency. There is no mention of production capacity, years in business, or client list.
The supplier does not claim ISO certification, third-party testing, or factory audits. Its trust tier is listed as 'harbor', which reflects platform-assigned risk classification, not independent verification. Buyers should treat this as a basic supplier profile with no public quality assurances beyond the product description. Due diligence on production capability, material traceability, and packaging standards is recommended before placing orders.
This DIN cold drawing BA seamless tube 7-12 is a precision-engineered carbon steel tube designed for high-performance industrial applications. Cold drawn manufacturing ensures superior dimensional accuracy and a smooth BA finish, making it ideal for hydraulic systems, automotive components, and mechanical engineering uses. Available for export with flexible incoterms including FOB and CIF, this product meets international quality standards and is competitively priced for global trade.
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Sourcing Din cold drawing and BA seamless tube 7-12 from Shanghai Tianyang Steel Tube Co., Ltd. - China Import Guide
Before ordering, verify the material composition with a certified material test report (MTR) showing carbon, manganese, and trace element content. Confirm the wall thickness and outer diameter with caliper measurements on sample tubes. Request a surface roughness test result for the BA finish, and ask if the tubes undergo hydrostatic testing or eddy current inspection. Do not accept claims of ISO or DIN compliance without documentation referencing the exact standard number and test method.
Confirm the Incoterms offered - FOB Shanghai or CIF destination - and whether the supplier handles export documentation. Lead time is not stated; request a production schedule based on MOQ. Packaging must include rust prevention and end caps to avoid internal corrosion during transit. Payment terms should avoid 100% upfront; a 30% deposit with balance against shipping documents is standard. Ask for a copy of the commercial invoice template used for customs clearance.
Perform a visual inspection for surface defects such as scratches, pitting, or oxidation upon receipt. Use a micrometer to measure wall thickness at three points along the tube length. Check for ovality by measuring diameter at 90-degree intervals. Retain a sample for future reference. Request a certificate of conformity with batch number and test results. If the tubes will be welded, verify that the carbon equivalent is below 0.45% to avoid cracking. Document all findings with photos and signatures before accepting delivery.
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30 suppliersBuy Din Cold Drawing And Ba S in Bulk — Supplier in China
When sourcing Din Cold Drawing And Ba Seamless Tube 7-12 for your business, securing the right balance of quality and cost is essential. Shanghai Tianyang Steel Tube Co., Ltd., a supplier based in China, offers this product with key specifications including DIN 2391 / Cold Drawn Seamless Tube with Bright Annealed Finish, Carbon Steel, Low Carbon Grade (approx. C 0.06-0.20%), and 7mm - 12mm Outer Diameter, Wall Thickness Per DIN 2391 Standards. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $3,200 – $3,800 / MT and manage bulk orders with a minimum order quantity (MOQ) of 1 Unit. This product is actively traded under HS Code 7304.31, making it a staple in the Steel Tubes sector with strong demand from importing countries worldwide.
Din Cold Drawing And Ba S Specifications, Trade Terms & Pricing
Importing Din Cold Drawing And Ba S requires careful attention to shipping logistics, customs compliance, and secure payment terms. Shanghai Tianyang Steel Tube 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 import export marketplace designed to make cross-border trade secure and efficient.
About Shanghai Tianyang Steel Tube Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. Ask the supplier of this Din Cold Drawing And Ba S for business registration and quality documents before ordering. 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 manufacturers and exporters across 200+ countries. Explore similar products in the Steel Tubes category and connect with top-tier exporters on our comprehensive online B2B marketplace. Start your sourcing journey today.
Import Din Cold Drawing And Ba S — Shipping, Logistics & Customs
Importing Din Cold Drawing And Ba S 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).
Frequently Asked Questions About Din Cold Drawing And Ba S
What is the wholesale price of Din Cold Drawing And Ba Seamless Tube 7-12?
The current listed wholesale price for Din Cold Drawing And Ba Seamless Tube 7-12 from Shanghai Tianyang Steel Tube Co., Ltd. is $3,200 – $3,800 / MT 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 Shanghai Tianyang Steel Tube Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Din Cold Drawing And Ba S?
The supplier, Shanghai Tianyang Steel Tube Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Unit for Din Cold Drawing And Ba S. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Din Cold Drawing And Ba Seamless Tube 7-12?
For international shipping and customs clearance, Din Cold Drawing And Ba Seamless Tube 7-12 is classified under HS Code 7304.31. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Din Cold Drawing And Ba S from China?
To import Din Cold Drawing And Ba S from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Shanghai Tianyang Steel Tube Co., Ltd.. Ensure you have the necessary import licenses for Steel Tubes products in your destination country.
How can I check Shanghai Tianyang Steel Tube Co., Ltd. before ordering?
Open the Shanghai Tianyang Steel Tube Co., Ltd. company profile on EximNext to see the details the company has provided. Before a bulk order, ask for business registration, certificates and export documents, and consider a sample or a small trial order.
What are the key specifications of Din Cold Drawing And Ba Seamless Tube 7-12?
The key specifications for Din Cold Drawing And Ba Seamless Tube 7-12 supplied by Shanghai Tianyang Steel Tube Co., Ltd. include DIN 2391 / Cold Drawn Seamless Tube with Bright Annealed Finish, Carbon Steel, Low Carbon Grade (approx. C 0.06-0.20%), and 7mm - 12mm Outer Diameter, Wall Thickness Per DIN 2391 Standards. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Din Cold Drawing And Ba S?
Shanghai Tianyang Steel Tube Co., Ltd. offers Din Cold Drawing And Ba S with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Din Cold Drawing And Ba S the most?
Din Cold Drawing And Ba S is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Shanghai Tianyang Steel Tube Co., Ltd. through our platform.
What certifications does this Din Cold Drawing And Ba S supplier hold?
Shanghai Tianyang Steel Tube Co., Ltd. maintains international quality certifications. These ensure that the Din Cold Drawing And Ba S meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Din Cold Drawing And Ba Seamless Tube 7-12 on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Shanghai Tianyang Steel Tube Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
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 Shanghai Tianyang Steel Tube Co., Ltd..
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