Import Asi 4130 Round Bar — Buy in wholesale FOB from Supplier in China
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ASI 4130 Round Bar
ASI 4130 round bar from Big Co., Ltd. is a chromium-molybdenum low alloy steel conforming to ASTM A29/A29M standards, designed for applications requiring a high strength-to-weight ratio and excellent weldability. The nominal 0.30% carbon content, combined with chromium and molybdenum, makes it ideal for aerospace, automotive, and oil and gas components. The bar is available in hot rolled, normalized, or cold drawn finishes, catering to diverse industrial needs.
The material is known for its versatility, with a typical tensile strength of 670 MPa and yield strength of 460 MPa in the normalized condition. It can be heat-treated to achieve higher strength levels, making it suitable for statically and dynamically stressed components such as crankshafts, gears, and aircraft engine mounts. The alloy’s low carbon content enhances its weldability, though this comes at the cost of reduced through-section hardenability compared to higher-carbon steels like 4140.
Big Co., Ltd. supplies ASI 4130 round bars in diameters ranging from 10 mm to 500 mm, with lengths from 1000 mm to 6000 mm. The bars are available in various surface treatments, including black, peeled, polished, or machined finishes, and can be delivered in hot rolled, forged, or cold drawn conditions. Buyers in the aerospace, automotive, and machinery sectors rely on this alloy for its balance of strength, toughness, and ease of fabrication.
| Material Grade | AISI/SAE 4130 |
| Standard | ASTM A29/A29M |
| Carbon Content | 0.30% nominal |
| Alloying Elements | Chromium, Molybdenum |
| Diameter Range | 10-500 mm |
| Length Range | 1000-6000 mm |
| Surface Treatment | Black, peeled, polished, machined |
| Delivery Condition | Hot rolled, forged, cold drawn, annealed, Q+T |
| Tensile Strength (normalized) | 670 MPa typical |
| Yield Strength (normalized) | 460 MPa typical |
| Elongation | 25% typical |
| Hardness (Brinell) | 197 typical |
Big Co., Ltd. is headquartered in Tongzhou District, Beijing, China, a region known for its industrial and manufacturing base. The company specializes in the production and supply of alloy steel products, including ASI 4130 round bars, catering to sectors such as aerospace, automotive, and oil and gas. Its location in Beijing provides logistical advantages for both domestic and international distribution.
The supplier holds a harbor trust tier and has a decade of experience in manufacturing alloy steel products. It offers custom specifications, including various surface treatments and heat treatments, and provides mill certificates and third-party testing reports, such as SGS and UT 100%, upon request. Buyers are encouraged to confirm the supplier’s current verification status and manufacturing capabilities directly.
AISI 4130 round bar is a chrome molybdenum low alloy steel bar conforming to ASTM A29/A29M standards, widely sourced from global mills as a wholesale alloy steel bar for aerospace, automotive, and oil and gas applications. The nominal 0.30% carbon content combined with chromium and molybdenum provides excellent strength-to-weight ratio and weldability. Available in hot rolled, normalized, or cold drawn finish, this 4130 alloy bar is a staple import commodity in international steel trade.
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Sourcing ASI 4130 Round Bar from Big Co., Ltd. - China Import Guide
Before ordering ASI 4130 round bar from Big Co., Ltd., verify the mechanical properties, heat treatment condition, and surface finish to ensure they meet your project’s requirements. Request mill certificates and third-party inspection reports to confirm the material’s compliance with ASTM A29/A29M standards. Check for any additional certifications, such as ISO or SGS, that may be required for your industry.
Discuss logistics and lead times with the supplier, as alloy steel bars are often shipped in bulk and may require special handling. Clarify Incoterms, such as FOB or CIF, and confirm whether the supplier can arrange for containerized shipping or break-bulk options. Payment terms should be agreed upon in advance, with options like letters of credit or telegraphic transfers being standard for international steel trade.
Upon arrival, conduct a thorough inspection of the ASI 4130 round bars to verify dimensions, surface finish, and mechanical properties. Use calibrated equipment to check diameter, length, and straightness, and perform non-destructive testing, such as ultrasonic testing, to detect internal defects. Document any discrepancies and address them with the supplier before accepting the shipment.
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30 suppliersBuy Asi 4130 Round Bar in Bulk — Verified Supplier in China
When sourcing Asi 4130 Round Bar 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 4130 / ASTM A29, C 0.28-0.33%, Cr 0.80-1.10%, Mo 0.15-0.25%, Mn 0.40-0.60%, Si 0.15-0.30%, and Diameter 10mm - 300mm, Length 1m - 6m (custom cut 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 7228.30, making it a staple in the Steel Bars sector with strong demand from importing countries worldwide.
Asi 4130 Round Bar Specifications, Trade Terms & Pricing
Importing Asi 4130 Round Bar 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 7228.30 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 Asi 4130 Round Bar 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 Bars category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Import Asi 4130 Round Bar — Shipping, Logistics & Customs
Importing Asi 4130 Round Bar 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 7228.30 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 Asi 4130 Round Bar
What is the wholesale price of Asi 4130 Round Bar?
The current listed wholesale price for Asi 4130 Round Bar 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 Asi 4130 Round Bar?
The supplier, Big Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Asi 4130 Round Bar. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Asi 4130 Round Bar?
For international shipping and customs clearance, Asi 4130 Round Bar is classified under HS Code 7228.30. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Asi 4130 Round Bar from China?
To import Asi 4130 Round Bar from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Big Co., Ltd.. Ensure you have the necessary import licenses for Steel Bars 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 Asi 4130 Round Bar?
The key specifications for Asi 4130 Round Bar supplied by Big Co., Ltd. include AISI 4130 / ASTM A29, C 0.28-0.33%, Cr 0.80-1.10%, Mo 0.15-0.25%, Mn 0.40-0.60%, Si 0.15-0.30%, and Diameter 10mm - 300mm, Length 1m - 6m (custom cut 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 Asi 4130 Round Bar?
Big Co., Ltd. offers Asi 4130 Round Bar with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Asi 4130 Round Bar the most?
Asi 4130 Round Bar 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 Asi 4130 Round Bar supplier hold?
Big Co., Ltd. maintains international quality certifications. These ensure that the Asi 4130 Round Bar meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Asi 4130 Round Bar 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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