Import Aisi 4140 Steel Pipe — Buy in wholesale FOB from Supplier in China
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AISI 4140 Steel Pipe
AISI 4140 steel pipe from Big Co., Ltd. is a seamless chromium molybdenum alloy tube conforming to ASTM A29/A519 standards, designed for high-stress industrial use. The pipe is produced from chromium molybdenum steel with a composition tailored for superior tensile strength and fatigue resistance, making it suitable for demanding applications like oil and gas drilling, automotive axles, and power generation components. Available in sizes from 1/2 inch to 24 inch NPS with standard wall thicknesses, it meets the mechanical property requirements of heavy-duty environments.
The material’s chromium and molybdenum content enhances hardenability and wear resistance, while its low alloy composition ensures good machinability and weldability. Typical industry standards for this grade include a tensile strength of 655 MPa minimum and yield strength of 415 MPa minimum in the annealed condition, with Brinell hardness around 197. The seamless construction eliminates weld seams, providing uniform strength and reliability in high-pressure systems.
This pipe is widely adopted in machinery spindles, hydraulic systems, and structural components where durability is critical. Buyers in manufacturing hubs source it for its consistent performance in elevated temperature service and resistance to atmospheric corrosion. Big Co., Ltd. offers custom lengths to match project specifications, with global export experience ensuring compliance with international standards for industrial supply chains.
| Material Grade | AISI 4140 / ASTM A29/A519 |
| Alloy Composition | Chromium Molybdenum Alloy Steel |
| Manufacturing Process | Seamless |
| Size Range | 1/2 inch to 24 inch NPS |
| Wall Thickness | Standard schedules (confirm exact with supplier) |
| Tensile Strength (typical) | 655 MPa minimum (annealed condition) |
| Yield Strength (typical) | 415 MPa minimum (annealed condition) |
| Brinell Hardness (typical) | 197 HB |
| Hardenability | High, due to chromium and molybdenum content |
| Corrosion Resistance | Good atmospheric corrosion resistance |
| Applications | Oil and gas drilling, automotive axles, machinery spindles, power generation |
Big Co., Ltd. is based in Tongzhou District, Beijing, China, with a registered address confirming its operational presence in a key industrial hub. The supplier operates at the harbor trust tier, indicating a verified trade profile for international buyers. While the response rate and average response hours are currently not available, the company’s focus on industrial-grade steel pipes aligns with its positioning as a specialist in high-strength alloy products.
The supplier’s product portfolio centers on chromium molybdenum alloy steel pipes, with a specific emphasis on AISI 4140 grades meeting ASTM standards. Big Co., Ltd. does not advertise additional certifications or historical trade data in its profile, but its adherence to international material specifications suggests a commitment to export-quality supply. Buyers are advised to confirm verification status and technical capabilities directly with the supplier.
The AISI 4140 chromoly steel pipe is a high-strength seamless tube manufactured from chromium molybdenum alloy steel, meeting ASTM A29/A519 standards. Widely used in oil and gas drilling, automotive axles, machinery spindles, and power generation components, it offers excellent tensile strength and fatigue resistance. This grade is a staple in global industrial supply chains and is actively traded for import/export across manufacturing hubs. Available in sizes from 1/2 inch to 24 inch NPS with standard wall thicknesses.
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Sourcing AISI 4140 Steel Pipe from Big Co., Ltd. - China Import Guide
Before ordering, verify the exact chemical composition and mechanical properties of the AISI 4140 steel pipe with Big Co., Ltd. Request mill test certificates and third-party inspection reports to confirm adherence to ASTM A29/A519 standards. Check for any additional certifications, such as ISO or industry-specific approvals, that may be required for your application or market.
Confirm logistics details, including lead time, which can vary based on size, quantity, and custom specifications. Clarify Incoterms (e.g., FOB or CIF) and port of loading to ensure alignment with your shipping arrangements. Big Co., Ltd. typically ships from China, so factor in transit times and potential customs requirements for your destination.
Conduct quality checks upon receipt, including dimensional verification, surface inspection, and mechanical property testing. For critical applications, arrange for pre-shipment inspection by a recognized agency. Ensure all documentation, such as material traceability records and test certificates, is provided to meet your quality assurance and compliance needs.
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30 suppliersBuy Aisi 4140 Steel Pipe in Bulk — Verified Supplier in China
When sourcing Aisi 4140 Steel Pipe 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 AISI 4140 / ASTM A519 Grade 4140, C 0.38-0.43%, Cr 0.80-1.10%, Mo 0.15-0.25%, Mn 0.75-1.00%, Si 0.15-0.30%, and OD 20mm - 350mm, Wall Thickness 3mm - 50mm, Length 6m / 12m (custom lengths available). 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 7304.49, making it a staple in the Steel Pipes sector with strong demand from importing countries worldwide.
Aisi 4140 Steel Pipe Specifications, Trade Terms & Pricing
Importing Aisi 4140 Steel Pipe 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 7304.49 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 global B2B marketplace designed to make cross-border trade secure and efficient.
About Big Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Aisi 4140 Steel Pipe 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 import export marketplace. Start your sourcing journey today.
Import Aisi 4140 Steel Pipe — Shipping, Logistics & Customs
Importing Aisi 4140 Steel Pipe 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 7304.49 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 Aisi 4140 Steel Pipe
What is the wholesale price of Aisi 4140 Steel Pipe?
The current listed wholesale price for Aisi 4140 Steel Pipe 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.
What is the Minimum Order Quantity (MOQ) for Aisi 4140 Steel Pipe?
The supplier, Big Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Aisi 4140 Steel Pipe. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Aisi 4140 Steel Pipe?
For international shipping and customs clearance, Aisi 4140 Steel Pipe is classified under HS Code 7304.49. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Aisi 4140 Steel Pipe from China?
To import Aisi 4140 Steel Pipe 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.
Is Big Co., Ltd. a verified supplier?
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.
What are the key specifications of Aisi 4140 Steel Pipe?
The key specifications for Aisi 4140 Steel Pipe supplied by Big Co., Ltd. include AISI 4140 / ASTM A519 Grade 4140, C 0.38-0.43%, Cr 0.80-1.10%, Mo 0.15-0.25%, Mn 0.75-1.00%, Si 0.15-0.30%, and OD 20mm - 350mm, Wall Thickness 3mm - 50mm, Length 6m / 12m (custom lengths available). 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 Aisi 4140 Steel Pipe?
Big Co., Ltd. offers Aisi 4140 Steel Pipe with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Aisi 4140 Steel Pipe the most?
Aisi 4140 Steel Pipe is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Big Co., Ltd. through our platform.
What certifications does this Aisi 4140 Steel Pipe supplier hold?
Big Co., Ltd. maintains international quality certifications. These ensure that the Aisi 4140 Steel Pipe meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Aisi 4140 Steel Pipe on EximNext?
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.
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 Big Co., Ltd..
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