Import Alloy Round Bar 4340 Steel — Buy in wholesale FOB from Supplier in China
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Alloy Round Bar 4340 Steel
The Alloy Round Bar 4340 Steel from Dongguan Songshun Mould Steel Co., Ltd. is an AISI/SAE 4340 chromium molybdenum nickel alloy steel, widely specified for high-strength applications. This grade is supplied in hot rolled or annealed condition, with diameters typically ranging from 12mm to 300mm. It meets standards such as AMS 6409 and ASTM A29, making it a reliable choice for aerospace, automotive, and oilfield industries.
4340 is a low-alloy steel with nickel, chromium, and molybdenum additions, offering a typical tensile strength of 900 to 1100 MPa in the Q+T condition. Its excellent hardenability and toughness make it suitable for machining, forging, and gear manufacturing. The alloy is often subjected to heat treatments like normalization, annealing, or quenching and tempering to achieve desired mechanical properties. Typical industry specifications include ultrasonic testing for internal defects and mill certifications to confirm composition.
This round bar is used in the production of gears, shafts, and other critical components that require both strength and durability. Buyers in sectors such as aerospace and automotive often source 4340 for parts exposed to high stress and impact. The supplier provides the material in bulk, with options for customized diameters and lengths. Importers should confirm the heat treatment state and dimensional tolerances to align with their machining or forging processes.
| Material Grade | AISI/SAE 4340 (Chromium Molybdenum Nickel Alloy Steel) |
| Form | Round Bar |
| Delivery Condition | Hot rolled or annealed |
| Typical Diameter Range | 12mm to 300mm |
| Tensile Strength (Typical, Q+T) | 900 to 1100 MPa |
| Hardenability | Excellent, suitable for deep hardening |
| Standards | AMS 6409, ASTM A29 |
| Heat Treatment Options | Normalizing, Annealing, Quenching and Tempering (Q+T) |
| Typical Elongation (Q+T) | standard 12% to 18% |
| Certification | ISO, Mill Certificate, SGS |
| Typical Application Standards | AISI/SAE, ASTM A322, ASTM A304 |
Dongguan Songshun Mould Steel Co., Ltd. is located at No.4 Dongda Street, Sha Tou, Dongguan, China. The company specializes in supplying alloy steel products, including round bars, flat bars, and plates, with a focus on high-strength materials for industrial applications. Its product portfolio includes chromium molybdenum and nickel-chromium-molybdenum alloy steels, catering to sectors like aerospace, automotive, and oilfield.
The supplier is classified as an imported-tier provider with a harbor trust tier, indicating a stable market presence. While the response rate and average response hours are not currently available, the company’s product descriptions highlight compliance with international standards such as AMS 6409 and ASTM A29. Buyers are advised to confirm the supplier’s responsiveness and certification details directly, as these are not explicitly verified in the provided data.
This AISI 4340 Ni-Cr-Mo alloy steel round bar is a high-strength structural bar widely specified in aerospace, automotive, and oilfield applications. Supplied in hot rolled or annealed condition with diameters typically from 12mm to 300mm, it meets AMS 6409 and ASTM A29 standards. Ideal for B2B buyers sourcing industrial steel bars for machining, forging, and gear manufacturing. Competitive pricing for bulk import and export shipments.
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Sourcing Alloy Round Bar 4340 Steel from Dongguan Songshun Mould Steel Co., Ltd. - China Import Guide
Before placing an order for Alloy Round Bar 4340 Steel from Dongguan Songshun Mould Steel Co., Ltd., verify the heat treatment state and mechanical properties to ensure they meet your project requirements. Confirm whether the material is supplied in hot rolled, annealed, or Q+T condition, as this affects its machinability and performance. Request mill certificates and test reports to validate composition and quality.
Clarify logistics details such as Incoterms, packaging, and lead times with the supplier. Alloy round bars are typically packaged in bundles or wooden crates to prevent damage during transit. Discuss whether the supplier offers FOB or CIF terms and the nearest port of shipment in China. Lead times may vary based on diameter and heat treatment, so confirm these in advance.
Perform quality checks upon receipt, focusing on dimensional accuracy, surface finish, and hardness. For critical applications, consider third-party inspection to verify compliance with standards like AMS 6409 or ASTM A29. Ensure all documentation, including material test reports and certifications, is provided and matches the ordered specifications. This step is essential for traceability and compliance in high-stakes industrial projects.
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30 suppliersBuy Alloy Round Bar 4340 Stee in Bulk — Verified Supplier in China
When sourcing Alloy Round Bar 4340 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) / SNCM 433, High-Tensile Alloy Steel Bar, C 0.37-0.43%, Cr 0.60-0.90%, Mo 0.20-0.30%, Ni 1.65-2.00%, Mn 0.60-0.80%, Si 0.15-0.30%, and Diameter 10mm to 200mm; Length 3m, 6m, or custom cut-to-length. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $14001600/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.
Alloy Round Bar 4340 Stee Specifications, Trade Terms & Pricing
Importing Alloy Round Bar 4340 Stee 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 Alloy Round Bar 4340 Stee 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 global B2B marketplace. Start your sourcing journey today.
Import Alloy Round Bar 4340 Stee — Shipping, Logistics & Customs
Importing Alloy Round Bar 4340 Stee 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 Alloy Round Bar 4340 Stee
What is the wholesale price of Alloy Round Bar 4340 Steel?
The current listed wholesale price for Alloy Round Bar 4340 Steel from Dongguan Songshun Mould Steel Co., Ltd. is $14001600/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 Alloy Round Bar 4340 Stee?
The supplier, Dongguan Songshun Mould Steel Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Alloy Round Bar 4340 Stee. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Alloy Round Bar 4340 Steel?
For international shipping and customs clearance, Alloy Round Bar 4340 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 Alloy Round Bar 4340 Stee from China?
To import Alloy Round Bar 4340 Stee 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 Bars 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 Alloy Round Bar 4340 Steel?
The key specifications for Alloy Round Bar 4340 Steel supplied by Dongguan Songshun Mould Steel Co., Ltd. include AISI 4340 (UNS G43400) / SNCM 433, High-Tensile Alloy Steel Bar, C 0.37-0.43%, Cr 0.60-0.90%, Mo 0.20-0.30%, Ni 1.65-2.00%, Mn 0.60-0.80%, Si 0.15-0.30%, and Diameter 10mm to 200mm; Length 3m, 6m, or custom cut-to-length. 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 Alloy Round Bar 4340 Stee?
Dongguan Songshun Mould Steel Co., Ltd. offers Alloy Round Bar 4340 Stee with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Alloy Round Bar 4340 Stee the most?
Alloy Round Bar 4340 Stee 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 Alloy Round Bar 4340 Stee supplier hold?
Dongguan Songshun Mould Steel Co., Ltd. maintains international quality certifications. These ensure that the Alloy Round Bar 4340 Stee meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Alloy Round Bar 4340 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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