Import Custom-Made Aisi 4340 Alloy Steel — Buy in wholesale FOB from Supplier in China
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Custom-made Aisi 4340 Alloy Steel
Custom-made AISI 4340 alloy steel from Dongguan Songshun Mould Steel Co., Ltd. is a nickel-chromium-molybdenum high-strength material supplied as hot rolled round bars with diameters ranging from 20 to 800 mm and lengths of 3000 to 9000 mm. Plates are available up to 800 mm thickness, 2200 mm width, and 9000 mm length, with custom sizing offered on request. The grade delivers exceptional toughness and fatigue resistance, making it a preferred choice for aerospace, automotive, and oil and gas components where structural integrity under stress is critical.
The alloy’s chemical composition includes 0.38 to 0.43% carbon, 0.15 to 0.35% silicon, 0.60 to 0.80% manganese, 0.70 to 0.90% chromium, 0.20 to 0.30% molybdenum, and 1.65 to 2.00% nickel, with phosphorus and sulfur capped at 0.035% and 0.040% respectively. This balance ensures high tensile strength and shock resistance, while its hardenability and anti-overheating stability make it suitable for heavy machinery shafts, rotor blades, and nitrided components requiring superior performance. Standard industry tolerances for diameter and length apply, with mill test certification provided for export-ready shipments.
Buyers source this material for applications such as high-load shafts, rotor assemblies, and critical parts needing post-treatment nitriding to meet special performance demands. The supplier packages the product in standard international formats, ensuring safe transit for bulk orders. Importers typically confirm Incoterms, lead times, and packaging specifications directly with the supplier, as these can vary based on order volume and destination.
| Material Grade | AISI 4340 Nickel-Chromium-Molybdenum Alloy Steel |
| Carbon Content | 0.38 to 0.43% |
| Silicon Content | 0.15 to 0.35% |
| Manganese Content | 0.60 to 0.80% |
| Chromium Content | 0.70 to 0.90% |
| Molybdenum Content | 0.20 to 0.30% |
| Nickel Content | 1.65 to 2.00% |
| Phosphorus Content (max) | 0.035% |
| Sulfur Content (max) | 0.040% |
| Round Bar Diameter | 20 to 800 mm |
| Round Bar Length | 3000 to 9000 mm |
| Plate Thickness (max) | 800 mm |
| Plate Width (max) | 2200 mm |
| Plate Length (max) | 9000 mm |
| Typical Tensile Strength | 900 to 1100 MPa (standard for AISI 4340, heat-treated) |
| Typical Hardness (Annealed) | 217 to 248 HB (standard for AISI 4340) |
| Typical Elongation | 17 to 22% (standard for AISI 4340, heat-treated) |
| Packaging | Standard international packaging with mill test certification |
| Certification | Mill test certification |
Dongguan Songshun Mould Steel Co., Ltd. operates from No.4 Dongda Street, Sha Tou, Dongguan, China, specializing in high-strength alloy steels for industrial and engineering applications. The company is classified as an imported-tier supplier with a harbor trust tier, indicating a baseline level of verification for international trade. Its product range includes custom-sized AISI 4340 alloy steel, tailored to meet the precise specifications of buyers in aerospace, automotive, and oil and gas sectors.
The supplier’s profile does not disclose response rate metrics, average response hours, or additional verification signals such as client testimonials or third-party certifications. Buyers are advised to confirm the supplier’s current operational capacity, quality control processes, and export documentation directly. The company’s focus on customizable alloy steel products positions it as a niche provider for buyers requiring specific material properties and dimensions.
AISI 4340 alloy steel is a nickel-chromium-molybdenum high-strength material widely used in aerospace, automotive, and oil and gas applications. Available as hot rolled round bars (20-800mm diameter, 3000-9000mm length) and plates up to 800mm thick. This grade offers excellent toughness and fatigue resistance, making it ideal for critical mechanical components. Export-ready with standard international packaging and mill test certification.
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Sourcing Custom-made Aisi 4340 Alloy Steel from Dongguan Songshun Mould Steel Co., Ltd. - China Import Guide
Before placing an order for AISI 4340 alloy steel, verify the supplier’s ability to meet your exact dimensional and chemical composition requirements. Request the latest mill test certificates and confirm whether the material has undergone any pre-treatment, such as annealing or normalizing, to ensure it aligns with your processing needs. It is also prudent to check if the supplier can provide additional certifications, such as ISO or industry-specific standards, if required for your project.
Confirm logistics details, including packaging standards, Incoterms (e.g., FOB, CIF), and lead times for both production and shipping. For bulk orders, discuss the feasibility of partial shipments or staggered deliveries to manage inventory. Payment terms should be clarified upfront, with preferences for letters of credit, wire transfers, or other secure methods to protect both parties during the transaction.
Quality checks should include visual inspection for surface defects, dimensional verification against purchase orders, and mechanical testing for properties like tensile strength, hardness, and elongation. For critical applications, consider third-party inspection services to validate the material’s compliance with specifications. Ensure all documentation, including packing lists, invoices, and certificates of origin, is accurate and complete to facilitate smooth customs clearance.
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30 suppliersBuy Custom-Made Aisi 4340 All in Bulk — Verified Supplier in China
When sourcing Custom-Made Aisi 4340 Alloy Steel for your business, securing the right balance of quality and cost is essential. Dongguan Songshun Mould Steel Co., Ltd., a verified supplier based in China, offers this product with key specifications including AISI 4340 / UNS G43400 Low Alloy Steel, C 0.37-0.43%, Mn 0.60-0.80%, Cr 0.70-0.90%, Ni 1.65-2.00%, Mo 0.20-0.30%, Si 0.15-0.30%, and Round Bar: Dia. 20-800mm x Length 3000-9000mm; Plate: Max 800mm(Thk) x 2200mm(W) x 9000mm(L). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $5001500/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 sector with strong demand from importing countries worldwide.
Custom-Made Aisi 4340 All Specifications, Trade Terms & Pricing
Importing Custom-Made Aisi 4340 All requires careful attention to shipping logistics, customs compliance, and secure payment terms. Dongguan Songshun Mould Steel 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 B2B marketplace designed to make cross-border trade secure and efficient.
About Dongguan Songshun Mould Steel Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Custom-Made Aisi 4340 All 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 category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Import Custom-Made Aisi 4340 All — Shipping, Logistics & Customs
Importing Custom-Made Aisi 4340 All 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 Custom-Made Aisi 4340 All
What is the wholesale price of Custom-Made Aisi 4340 Alloy Steel?
The current listed wholesale price for Custom-Made Aisi 4340 Alloy Steel from Dongguan Songshun Mould Steel Co., Ltd. is $5001500/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 Dongguan Songshun Mould Steel Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Custom-Made Aisi 4340 All?
The supplier, Dongguan Songshun Mould Steel Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Custom-Made Aisi 4340 All. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Custom-Made Aisi 4340 Alloy Steel?
For international shipping and customs clearance, Custom-Made Aisi 4340 Alloy Steel 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 Custom-Made Aisi 4340 All from China?
To import Custom-Made Aisi 4340 All from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Dongguan Songshun Mould Steel Co., Ltd.. Ensure you have the necessary import licenses for Steel products in your destination country.
Is Dongguan Songshun Mould Steel Co., Ltd. a verified supplier?
Yes, Dongguan Songshun Mould Steel 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 Custom-Made Aisi 4340 Alloy Steel?
The key specifications for Custom-Made Aisi 4340 Alloy Steel supplied by Dongguan Songshun Mould Steel Co., Ltd. include AISI 4340 / UNS G43400 Low Alloy Steel, C 0.37-0.43%, Mn 0.60-0.80%, Cr 0.70-0.90%, Ni 1.65-2.00%, Mo 0.20-0.30%, Si 0.15-0.30%, and Round Bar: Dia. 20-800mm x Length 3000-9000mm; Plate: Max 800mm(Thk) x 2200mm(W) x 9000mm(L). 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 Custom-Made Aisi 4340 All?
Dongguan Songshun Mould Steel Co., Ltd. offers Custom-Made Aisi 4340 All with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Custom-Made Aisi 4340 All the most?
Custom-Made Aisi 4340 All is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Dongguan Songshun Mould Steel Co., Ltd. through our platform.
What certifications does this Custom-Made Aisi 4340 All supplier hold?
Dongguan Songshun Mould Steel Co., Ltd. maintains international quality certifications. These ensure that the Custom-Made Aisi 4340 All meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Custom-Made Aisi 4340 Alloy Steel on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Dongguan Songshun Mould Steel 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 Dongguan Songshun Mould Steel Co., Ltd..
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