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The 40CR/5140 alloy steel supplied by OTAI Special Steel Co., Ltd. is a chromium molybdenum cold work steel designed for industrial tooling and machinery parts. The material is offered in round bar form with diameters spanning 10mm to 400mm, sourced from major steel producing regions and compliant with AISI, ASTM, BS, DIN, GB, and JIS standards. Its composition balances strength and machinability, making it well suited for high stress applications in automotive and heavy machinery sectors.
This grade delivers exceptional tensile strength and wear resistance after heat treatment, a key reason for its steady demand in global manufacturing supply chains. Typical chromium content in this alloy ranges between 0.80 to 1.10%, while carbon content is standard at 0.37 to 0.44%, providing a durable yet workable material. The steel’s fine grain structure contributes to its toughness, which is critical for components subjected to repeated impact or abrasion.
Manufacturers use 5140 alloy steel for gears, shafts, axles, and structural parts in vehicles and industrial equipment. Buyers sourcing from OTAI Special Steel Co., Ltd. can confirm packaging standards, incoterms such as FOB or CIF, and certification compliance including ISO. The material’s versatility and availability in large diameters make it a reliable choice for export markets seeking consistent performance in demanding environments.
| Material Grade | 40CR / AISI 5140 Chromium Molybdenum Alloy Steel |
| Form | Round Bar |
| Diameter Range | 10mm to 400mm |
| Carbon Content | 0.37-0.44% (standard) |
| Chromium Content | 0.80-1.10% (standard) |
| Manganese Content | 0.50-0.80% (typical) |
| Silicon Content | 0.17-0.37% (typical) |
| Standards Compliance | AISI, ASTM, BS, DIN, GB, JIS |
| Tensile Strength | 600-800 MPa (typical, heat treated) |
| Surface Finish | Black, Peeled or Turned (typical) |
OTAI Special Steel Co., Ltd. is based in Dongguan City, Guangdong Province, China, with its address at 3#, Xiansha, Gaobu Town. The company operates as an imported tier supplier, specializing in alloy steel products for industrial and automotive applications. Its profile indicates a focus on providing materials that meet international standards, though the listed response rate and average response hours are currently at zero.
The supplier’s product range includes chromium molybdenum steels like 40CR/5140, which are marketed for their strength and versatility in cold work tooling. While certifications such as ISO are mentioned in the product description, the supplier’s profile does not explicitly confirm these, so buyers are advised to verify compliance directly. The company positions itself as a reliable source for manufacturing-grade steels, with global export capabilities.
The 40CR/5140 chromium molybdenum alloy steel is a versatile cold work steel widely used in automotive components, machinery parts, and industrial tooling applications. This grade offers excellent tensile strength, good machinability, and superior wear resistance when properly heat treated. Sourced from major steel-producing regions, 5140 alloy steel bars are in steady demand across global manufacturing and engineering supply chains, making it a reliable import-export commodity.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Before ordering, verify the chemical composition and mechanical properties of the 40CR/5140 alloy steel to ensure it meets your project’s specifications. Request mill test certificates and third-party inspection reports to confirm compliance with AISI, ASTM, or other relevant standards. This step is critical for applications where material performance directly impacts product reliability.
Confirm the available incoterms, such as FOB or CIF, and the supplier’s preferred payment methods. Discuss lead times and packaging standards to ensure the material arrives in the required condition. For large orders, negotiate bulk packaging options to minimize handling and transportation costs, especially for diameter ranges from 10mm to 400mm.
Conduct quality checks upon delivery, including dimensional verification, surface finish inspection, and hardness testing. For heat-treated components, perform additional tests such as tensile strength and impact resistance to ensure the material meets the required performance criteria. Document all inspections and retain certificates for traceability and future reference.
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When sourcing 40cr/5140 Alloy Steel for your business, securing the right balance of quality and cost is essential. OTAI Special Steel Co., Ltd., a verified supplier based in China, offers this product with key specifications including 40CR / 5140 / SCr440 (Equivalent to AISI 5140), C: 0.37-0.44%, Cr: 0.80-1.10%, Mn: 0.50-0.80%, Si: 0.17-0.37%, and Round Bar: Dia. 10-300mm; Plate: 6-100mm Thick; Rod: Dia. 5-50mm (Custom sizes available). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $8003800/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.
Importing 40cr/5140 Alloy Steel requires careful attention to shipping logistics, customs compliance, and secure payment terms. OTAI Special 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 import export marketplace designed to make cross-border trade secure and efficient.
Finding trustworthy partners is the foundation of successful importing. The supplier of this 40cr/5140 Alloy Steel 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 online B2B marketplace. Start your sourcing journey today.
Importing 40cr/5140 Alloy Steel 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).
The current listed wholesale price for 40cr/5140 Alloy Steel from OTAI Special Steel Co., Ltd. is $8003800/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 OTAI Special Steel Co., Ltd. through EximNext.
The supplier, OTAI Special Steel Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for 40cr/5140 Alloy Steel. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
For international shipping and customs clearance, 40cr/5140 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.
To import 40cr/5140 Alloy Steel from China, negotiate shipping terms (FOB, CIF, or EXW) directly with OTAI Special Steel Co., Ltd.. Ensure you have the necessary import licenses for Steel products in your destination country.
Yes, OTAI Special 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.
The key specifications for 40cr/5140 Alloy Steel supplied by OTAI Special Steel Co., Ltd. include 40CR / 5140 / SCr440 (Equivalent to AISI 5140), C: 0.37-0.44%, Cr: 0.80-1.10%, Mn: 0.50-0.80%, Si: 0.17-0.37%, and Round Bar: Dia. 10-300mm; Plate: 6-100mm Thick; Rod: Dia. 5-50mm (Custom sizes available). For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
OTAI Special Steel Co., Ltd. offers 40cr/5140 Alloy Steel with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
40cr/5140 Alloy Steel is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from OTAI Special Steel Co., Ltd. through our platform.
OTAI Special Steel Co., Ltd. maintains international quality certifications. These ensure that the 40cr/5140 Alloy Steel 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. OTAI Special Steel 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 OTAI Special Steel Co., Ltd..
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