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JIS Seamless Pipes & BS Seamless Pipes from Big Co., Ltd. are cold-drawn and hot-rolled carbon steel tubes conforming to Japanese Industrial Standards and British Standards, respectively. The JIS range includes Grade STPG 370 and 410, while the BS range covers Grade 360 and 410, both designed for high-pressure and structural applications. Sizes span hot-rolled outer diameters from 51 to 508 mm with wall thicknesses of 7 to 60 mm and lengths up to 16,000 mm, cold-drawn outer diameters from 10 to 50 mm with wall thicknesses of 2 to 10 mm, and hot-expanded outer diameters from 325 to 1,020 mm with wall thicknesses of 6 to 50 mm.
The pipes are manufactured from solid carbon steel billets, bored, heated, and drawn to form seamless tubes with a typical tensile strength of 75,000 psi. Standard surface treatments include oil-dip, varnish, passivation, phosphating, shot blasting, and epoxy or FBE coating, with beveled ends, black painting, plastic caps, or wooden protection for packaging. These tubes undergo rigorous testing, including chemical composition inspection, mechanical properties tests (tensile, yield, elongation, flaring, flattening, bending, hardness, and impact), dimensional checks, non-destructive testing, and hydrostatic testing to ensure compliance with industrial standards.
These seamless pipes are used in oil and gas transmission, petrochemical plants, boiler systems, automotive exhaust systems, and machinery components such as shafts and bearings. Buyers typically source them in bulk for infrastructure projects, with packaging tailored for seaworthy export. The tubes are suitable for applications requiring high strength, pressure resistance, and corrosion durability, making them a preferred choice for industries like metallurgy, shipbuilding, and medical equipment manufacturing.
| Material | Carbon Steel (Grade STPG 370/410 for JIS; Grade 360/410 for BS) |
| Manufacturing Process | Cold-drawn, hot-rolled, hot-expanded |
| Hot-Rolled Outer Diameter Range | 51 to 508 mm |
| Hot-Rolled Wall Thickness Range | 7 to 60 mm |
| Hot-Rolled Length | Max 16,000 mm |
| Cold-Drawn Outer Diameter Range | 10 to 50 mm |
| Cold-Drawn Wall Thickness Range | 2 to 10 mm |
| Hot-Expanded Outer Diameter Range | 325 to 1,020 mm |
| Hot-Expanded Wall Thickness Range | 6 to 50 mm |
| Typical Tensile Strength | 75,000 psi |
| Surface Treatment Options | Oil-dip, varnish, passivation, phosphating, shot blasting, epoxy coating, FBE coating |
| Packaging | Beveled ends, black painting, plastic caps, bundled with steel strips, wooden protection |
| Standard Tests | Chemical composition, tensile strength, yield strength, elongation, flaring, flattening, bending, hardness, impact, surface and dimension, non-destructive, hydrostatic |
Big Co., Ltd. is based in Tongzhou District, Beijing, China, and operates as a supplier of seamless steel pipes, including JIS and BS standards. The company’s address is confirmed in the Beijing 101100 postal region, with no additional verified operational details such as workforce size or revenue provided in the listing. The supplier’s trust tier is classified as harbor, indicating a baseline level of verification.
The listing does not specify response rates or average response hours, so buyers should confirm these details directly with the supplier. Big Co., Ltd. focuses on providing carbon steel seamless pipes for industrial applications, with no additional claims about certifications, client base, or production capacity. All inquiries about lead times, MOQs, or trade terms must be directed to the supplier for confirmation.
JIS and BS seamless pipes are manufactured to Japanese Industrial Standards and British Standards respectively, offering superior strength and pressure resistance for critical industrial applications. These carbon steel seamless tubes are widely used in oil and gas transmission, petrochemical plants, boiler systems, and automotive exhaust systems across global markets. Available in various sizes and wall thicknesses, they meet stringent international quality requirements for both structural and pressure-related uses.
| 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 |
Before ordering JIS or BS seamless pipes from Big Co., Ltd., verify the exact grades (STPG 370/410 for JIS, 360/410 for BS) and confirm the manufacturing process (cold-drawn, hot-rolled, or hot-expanded) matches your project requirements. Check whether the supplier can provide mill test certificates and third-party inspection reports for chemical composition and mechanical properties, as these are critical for compliance with industry standards.
Logistics details to confirm include the maximum length per pipe (up to 16,000 mm for hot-rolled, 12,000 mm for hot-expanded), packaging type (beveled ends, black painting, wooden protection), and whether the supplier can accommodate custom lengths or surface treatments. Clarify Incoterms such as FOB or CIF, port of loading in China, and lead times, as these are not specified in the listing.
For quality checks, insist on hydrostatic testing and non-destructive testing reports to ensure the pipes meet pressure resistance requirements. Request documentation for surface treatment methods (e.g., epoxy coating, passivation) and verify that the pipes are bundled and protected for seaworthy export. Confirm whether the supplier provides additional certifications, such as ISO or PED, which are typical for industrial-grade seamless pipes.
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When sourcing Jis Seamless Pipes & Bs Seamless Pipes for your business, securing the right balance of quality and cost is essential. Big Co., Ltd., a verified supplier based in China, offers this product with key specifications including STKM 11A/12A/13A (JIS); BS 3601/3602/3604 (BS), 2.0mm - 30.0mm (schedule compliant), and 6.0mm - 660.0mm (OD range). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $100/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7304.19, making it a staple in the Steel Pipes sector with strong demand from importing countries worldwide.
Importing Jis Seamless Pipes & Bs S requires careful attention to shipping logistics, customs compliance, and secure payment terms. Big 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 7304.19 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 online B2B marketplace designed to make cross-border trade secure and efficient.
Finding trustworthy partners is the foundation of successful importing. The supplier of this Jis Seamless Pipes & Bs S 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 B2B marketplace. Start your sourcing journey today.
Importing Jis Seamless Pipes & Bs 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 7304.19 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 Jis Seamless Pipes & Bs Seamless Pipes from Big Co., Ltd. is $100/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 Big Co., Ltd. through EximNext.
The supplier, Big Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Jis Seamless Pipes & Bs S. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
For international shipping and customs clearance, Jis Seamless Pipes & Bs Seamless Pipes is classified under HS Code 7304.19. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
To import Jis Seamless Pipes & Bs S from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Big Co., Ltd.. Ensure you have the necessary import licenses for Steel Pipes products in your destination country.
Yes, Big 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 Jis Seamless Pipes & Bs Seamless Pipes supplied by Big Co., Ltd. include STKM 11A/12A/13A (JIS); BS 3601/3602/3604 (BS), 2.0mm - 30.0mm (schedule compliant), and 6.0mm - 660.0mm (OD range). For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
Big Co., Ltd. offers Jis Seamless Pipes & Bs S with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Jis Seamless Pipes & Bs S is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Big Co., Ltd. through our platform.
Big Co., Ltd. maintains international quality certifications. These ensure that the Jis Seamless Pipes & Bs S 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. Big 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 Big Co., Ltd..
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