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The GB Standard Alloy Round Bar is a hot‑rolled steel bar produced to meet a range of international standards including AISI, ASTM, BS, DIN, GB and JIS. It is supplied by Big Co., Ltd., a harbor‑tier supplier located in Beijing, China, and is fabricated from a chromium‑molybdenum or chrome‑nickel alloy steel grade that offers enhanced strength and corrosion resistance. The bar’s material composition is designed for demanding engineering applications.
Industry practice typically provides round bars with outer diameters from 10 mm up to 500 mm and lengths between 1 000 mm and 6 000 mm, with dimensional tolerances of ±0.5 mm as a standard tolerance class. Typical tensile strength for these alloy grades lies in the 600‑800 MPa range, and a common surface finish is Ra 0.8 µm, which facilitates machining and welding. Heat treatment such as tempering is often applied to achieve the required mechanical properties, and the bars are supplied in standard bundles on wooden pallets.
Manufacturers of construction equipment, automotive components and heavy‑machinery parts frequently purchase these round bars for forging, machining and assembly. Buyers should specify the exact diameter, length and any required heat‑treatment condition when requesting a quotation from Big Co., Ltd. The supplier notes flexible minimum order quantities and shipping options like FOB or CIF, but the final incoterm, lead time and payment schedule must be clarified directly with the seller.
| Material | Alloy Steel (Chromium‑Molybdenum / Chrome‑Nickel grade) |
| Standards | AISI, ASTM, BS, DIN, GB, JIS |
| Typical outer diameter range | typical 10‑500 mm |
| Typical length range | typical 1000‑6000 mm |
| Typical dimensional tolerance | typical ±0.5 mm |
| Typical surface finish | typical Ra 0.8 µm |
| Typical tensile strength | typical 600‑800 MPa |
| Typical heat treatment | typical tempered condition |
| Typical packaging | typical bundled on wooden pallets |
| Typical weight per metre | typical 7.85 kg/m for a 100 mm Ø bar (example) |
Big Co., Ltd. operates from its registered office in the Tongzhou District of Beijing, China, and carries a harbor‑tier verification on the marketplace. The company’s profile shows a 0 % response rate and no average response time, indicating that inquiries should be initiated promptly.
In addition to alloy round bars, the firm lists GB Standard Alloy Pipes, highlighting its capability to supply a range of GB‑compliant steel products. The supplier references ISO certification and offers export terms such as FOB or CIF, with the ability to adjust order volumes to suit project scales.
GB Standard Alloy Round Bar is manufactured to meet AISI, ASTM, BS, DIN, GB, and JIS international standards, making it suitable for global export and import trade. With outer diameter ranging from 10mm to 500mm and length from 1000mm to 6000mm, these bars are widely used in construction, machinery manufacturing, automotive components, and structural engineering applications. As a versatile industrial material sourced from China's main steel mills, this product serves buyers in manufacturing, fabrication, and construction sectors worldwide.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | Contact Supplier |
| Response Rate | New Supplier |
Before ordering, verify that the bar’s diameter, length, tolerance and heat‑treatment condition match the engineering drawings, and request the relevant standard test report (e.g., ASTM or GB) to confirm compliance. Confirm the supplier’s harbor tier status and ask for up‑to‑date ISO certification and any recent factory audit reports to ensure production reliability. Ensure that the material grade and any additional processing specifications are clearly documented in the purchase agreement.
Discuss the preferred incoterm - often FOB Shanghai or CIF Shanghai - and obtain an estimated lead time based on the requested sizes and quantities. Payment arrangements are typically a 30 % advance by T/T with the balance payable against shipping documents, but the exact terms should be agreed in writing. Coordinate with a freight forwarder to manage container loading, customs clearance and inland transportation to the final destination.
Plan a pre‑shipment inspection by an accredited third party, focusing on diameter tolerance, surface finish and heat‑treatment verification as per the applicable standards. Request mill test certificates and a heat‑treatment report to document the material’s mechanical properties. Upon receipt, conduct a visual inspection for transport damage and retain all quality certificates for future reference.
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When sourcing Gb Standard Alloy 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 Alloy Steel Round Bar (AISI 4140 / 42CrMo4 / equivalent), Alloy steel with Chromium-Molybdenum (Cr-Mo) composition, and Diameter: 10mm - 500mm; Length: 1000mm - 6000mm. 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 7228.20, making it a staple in the Steel Bars sector with strong demand from importing countries worldwide.
Importing Gb Standard Alloy Round B 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 7228.20 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.
Finding trustworthy partners is the foundation of successful importing. The supplier of this Gb Standard Alloy Round B 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.
Importing Gb Standard Alloy Round B 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 7228.20 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 Gb Standard Alloy 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.
The supplier, Big Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Gb Standard Alloy Round B. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
For international shipping and customs clearance, Gb Standard Alloy Round Bar is classified under HS Code 7228.20. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
To import Gb Standard Alloy Round B 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.
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.
The key specifications for Gb Standard Alloy Round Bar supplied by Big Co., Ltd. include Alloy Steel Round Bar (AISI 4140 / 42CrMo4 / equivalent), Alloy steel with Chromium-Molybdenum (Cr-Mo) composition, and Diameter: 10mm - 500mm; Length: 1000mm - 6000mm. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
Big Co., Ltd. offers Gb Standard Alloy Round B with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Gb Standard Alloy Round B is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Big Co., Ltd. through our platform.
Big Co., Ltd. maintains international quality certifications. These ensure that the Gb Standard Alloy Round B 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. Big 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 Big Co., Ltd..
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