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Brazil---AimeeIn the latest vendor rating, TOBO won the excellent rating, it is good, will continue to cooperate. -
Thailand ---Dave MulroyASTM A213 T9 Alloy steel pipe ,Stable quality , good price, excellent serive, TOBO GROUP is our trustworthy partner . -
USA ---AlfaroASTM A182 F55 Super Duplex Flange ,Good quality , we like that ! And delivery time in time also ,very professional.
Dual Grade 304/316L Stainless Steel Seamless Pipe ASTM A312 SCH10-80 Seamless Tube Factory Supply
| Product Name | Dual Grade 304/316L Stainless Steel Seamless Pipe ASTM A312 SCH10-80 Seamless Tube Factory Supply | Outer Diameter | 6-630mm, 6-762mm, 6-860mm, Customized |
|---|---|---|---|
| Section | Round | Shape | Round.Square.Rectangular |
| Alloy Or Not | Non-Alloy | Head Code | Round |
| Surface Treatment | Pickling | End | Plain End, Beveled End |
| Techinque | Cold Drawn | Surface State | Industrial Grade Surface |
| Steel Grade | 300 Series, 316L, 316, 321, 304, 304L | Sizes | 1/8 |
| Technique | Cold Rolled | Equivalent Grade | EN 1.4462 | UNS S32205 | Duplex 2205 |
| Thickness | 0.4-30mm,1mm-60mm | ||
| High Light | Pipe | ||
Dual Grade 304/316L Stainless Steel Seamless Pipe ASTM A312 SCH10-80 Seamless Tube Factory Supply
1.Product Description
This product is export-grade stainless steel seamless pipe, manufactured strictly to internationally recognized standards (ASTM/ASME/EN/GB) and adapted for multimodal transport including sea, air, and land freight. Prior to shipment, each batch undergoes anti-corrosion treatment, end protection, stencil marking, and waterproof moisture-proof packaging to ensure no rusting, impact deformation, or label detachment during long-distance ocean transit under high-temperature, high-humidity, and salt-spray conditions. A complete bilingual documentation package (commercial invoice, packing list, Certificate of Origin, Mill Test Certificate, Bill of Lading, and customs declaration elements) accompanies each shipment, facilitating rapid customs clearance at major global ports (e.g., Houston, Rotterdam, Singapore, Shanghai).
2. Product Applications
This export logistics guide applies to the following international trade scenarios:
| Application Scenario | Specific Requirements |
| FOB/CIF ocean export | Suitable for 20ft/40ft standard containers or break-bulk vessel holds; meets stacking and lashing requirements |
| Direct supply for international EPC projects | Packed by construction sequence and zone; ready for direct installation upon arrival without secondary sorting |
| Cross-border rail (China-Europe Railway Express) | Meets railway loading gauge limits; single bundle length ≤12.5m; packaging resists vibration and compression |
| Bonded warehousing at destination | External labels include full material details (grade, size, PO#) for WMS barcode scanning |
| Transshipment trade (intermediate port de-vanning) | Inner packaging individually sealed, outer cases reinforced for multiple hoisting and short-distance transfers |
3. Product Advantages
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Excellent marine weather resistance: Exterior coated with weldable rust-preventive primer, combined with VCI rust-preventive paper inner lining and double-layer stretch film, provides ≥90 days of rust protection in salt-spray environments (ISO 9227), eliminating the need for additional pickling upon arrival.
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Reliable end damage protection: Standard plastic end caps (or optional metal thread protectors) effectively absorb axial impacts during hoisting and transit, maintaining bevel edge integrity ≥99.5%.
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Permanent legible marking: High-adhesion seawater-resistant ink is used for stenciling on both ends (within 1m) — displaying grade, heat number, size, PO#, and destination code — remaining readable even after saltwater spray and UV exposure.
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Optimized container stuffing: Professional palletization and container stowage plans (weight distribution) maximize per-container loading (13~16 tons per 20ft container) while ensuring balanced weight distribution to avoid listing and maritime incidents.
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Zero-error customs compliance: Pre-vetted by a professional customs team covering HS codes (7304 series), rules of origin, and destination-country import license requirements, ensuring one-time clearance with near-zero demurrage risk.
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Full track-and-trace visibility: Tamper-proof QR code labels affixed to each bundle allow instant scanning for electronic MTCs, packing photos, and real-time logistics tracking — achieving "end-to-end visibility" from mill to site.
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4.Key Product Parameters
| Parameter Category | Specification / Description |
| Single Bundle Length | Standard: 6m / 9m / 12m; up to 18m available (requires freight and lifting condition pre-approval) |
| Single Bundle Weight | Road: ≤3.0 tons; Ocean: ≤3.5 tons (for forklift and quayside crane compatibility) |
| Strapping Method | Hexagonal or rectangular formation; minimum 4 galvanized steel straps (width ≥32mm, thickness ≥0.8mm) |
| End Protection | Plastic end caps (WT ≤10mm) or metal thread protectors (WT >10mm or threaded ends) |
| Inner Packaging | Full-wrap VCI rust-preventive paper (100% coverage) or EPE foam padding (anti-scratch) |
| Outer Packaging | ≥3 layers of 0.2mm PE stretch film + waterproof tarpaulin/moisture-proof paper outer layer (ocean-grade) |
| Shipping Mark & Label | Consignee name, Contract/PO#, Grade, Dimension (OD×WT), Heat No., Net/Gross Weight, Country of Origin (MADE IN CHINA), stacking height limit |
| Pipe Body Stencil Marking | Ring-stenciled within 1m of each end: Grade + Dimension + Heat No. + PO# + Zone Code (waterproof weather-resistant ink) |
| Max. Single Length (Container) | 20ft: ≤5.9m; 40ft: ≤12.0m (standard box); over-length requires open-top/flat-rack containers |
| 20ft Container Loading (ref.) | Approx. 13~16 tons (spec-dependent; final stowage plan prevails) |
| 40ft Container Loading (ref.) | Approx. 22~26 tons (spec-dependent; final stowage plan prevails) |
| HS Code (China Export) | 7304.1100 (Austenitic SS seamless) / 7304.4900 (Other SS seamless) |
| Primary Export Documents | Commercial Invoice, Packing List (bilingual), Certificate of Origin (CO or FORM E/FTA), MTC (3.1/3.2), Original B/L, Export Customs Declaration, Insurance Certificate |
| Special Destination Access (common) | EU: EN 10204 + PED 2014/68/EU CE marking; USA: ASME + AMS filing; Canada: CRN registration |
| Pre-Shipment Inspection (PSI if required) | BV / SGS / Intertek supervision of stuffing and witnessed testing; clean report issued |
| Warranty Period (Export) | 18 months from delivery or 12 months from commissioning (whichever first), covering material and manufacturing defects |
| Insurance Recommendation | 110% of invoice value All Risks (Ocean Marine Cargo Clauses), with War Risks and Strikes extension per destination stability |
FAQ
1. Are you trading company or manufacturer ? We are manufacturer ,You can see the certification.
2.How long is your delivery time? Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
3. Do you provide samples ? is it free or extra ? Yes, we could offer the sample for free charge but need pay the cost of freight.
4. What is your terms of payment ? Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.

