Import Hot Rolled Spring Steel Sup12 Round Bar — Buy in wholesale FOB from Supplier in China
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Hot Rolled Spring Steel SUP12 Round Bar
The Hot Rolled Spring Steel SUP12 Round Bar is a precision‑manufactured steel product offered by Dongguan Songshun Mould Steel Co., Ltd., located in Dongguan, Guangdong, China. It is produced from a chromium‑vanadium alloy known as SUP12 or 55Cr3, complying with JIS G 4801 standards for spring steel. Bars are supplied in a hot‑rolled condition with a uniform length of 6 m and diameters ranging from 12 mm to 150 mm. The supplier’s description highlights the material’s exceptional tensile strength and fatigue resistance for demanding engineering applications.
SUP12 alloy steel typically exhibits a tensile strength of 1 200 - 1 500 MPa and a yield strength around 1 050 MPa, providing the elasticity required for automotive suspension components and industrial springs. The hot‑rolled finish yields a surface roughness Ra ≤ 1.6 µm, which is standard for further cold‑working or coating processes. Chemical composition standards for 55Cr3 include roughly 0.55 % carbon, 1.0 % chromium and 0.30 % vanadium, delivering the alloy’s high hardenability. These specifications align with global engineering practices for high‑performance spring steel.
Importers, OEM manufacturers and aftermarket distributors can source the round bars in bulk, with the supplier indicating flexible ordering options and container or bulk shipment methods. While the listing does not disclose a specific minimum order quantity, suppliers typically accept orders starting from a single 6‑m bar up to full container loads. Buyers should confirm the preferred Incoterms, such as FOB Dongguan or CIF Shanghai, and negotiate payment terms directly with Dongguan Songshun. The product’s compliance with JIS G 4801 and its documented mechanical properties make it suitable for critical load‑bearing applications.
| Material | Chromium‑vanadium alloy steel (SUP12 / 55Cr3) |
| Standard | JIS G 4801 |
| Diameter range | 12 mm - 150 mm |
| Length | 6 m |
| Tensile strength (typical) | 1 200 - 1 500 MPa |
| Yield strength (typical) | ≈ 1 050 MPa |
| Surface roughness Ra (typical) | ≤ 1.6 µm |
| Chemical composition (typical) | C 0.55 %, Cr 1.0 %, V 0.30 % |
| Hardness (typical) | 30 - 38 HRC after heat treatment |
| Packaging (typical) | Bundled in wooden crates or steel pallets with protective film |
Dongguan Songshun Mould Steel Co., Ltd. is situated at No.4 Dongda Street, Sha Tou, Dongguan, Guangdong, China. The supplier carries a harbor trust tier and is listed with a response rate of 0.00, indicating limited recent communication but recognised status within the platform’s verification hierarchy.
The company specialises in mould steel and spring‑steel production, supplying alloy bars that meet JIS G 4801 requirements. The public listing provides material, dimensional and mechanical details but does not disclose pricing, MOQ, lead‑time or specific quality certifications, so buyers must obtain these details directly from the supplier.
SUP12 hot rolled spring steel round bars are precision-manufactured from chromium-vanadium alloy steel conforming to JIS G 4801 standards, offering exceptional tensile strength and fatigue resistance ideal for automotive suspension systems, industrial machinery springs, and heavy-duty clip applications. Widely sourced from major Asian steel producers, these bars are available in diameters from 12mm to 150mm with standard 6-meter lengths, and are traded globally in container and bulk shipments for OEM and aftermarket supply chains. As a specialized alloy bar product, SUP12 commands a price premium over standard carbon steel bars due to its superior elastic properties and严格的成分控制.
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Sourcing Hot Rolled Spring Steel SUP12 Round Bar from Dongguan Songshun Mould Steel Co., Ltd. - China Import Guide
Before ordering, request a sealed sample of the round bar and a detailed mill test certificate that lists tensile strength, yield strength and chemical composition. Ask for any applicable quality‑management certificates such as ISO 9001 to confirm the supplier’s production controls. Verifying these documents helps ensure the steel meets your engineering standards.
Discuss logistics by confirming the expected lead time, which is not disclosed in the listing, and agree on Incoterms such as FOB Dongguan or CIF Shanghai. Clarify payment terms, whether via T/T, L/C or another method, to align with your financial risk policy. Verify container size, pallet configuration and loading plan to avoid shipping issues.
Arrange a pre‑shipment inspection that includes visual checks for surface defects and verification of the mill test certificate. Obtain a certificate of origin and any required customs documentation for steel imports into your country. Maintaining thorough inspection records and paperwork will facilitate customs clearance and guarantee product quality upon arrival.
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30 suppliersBuy Hot Rolled Spring Steel S in Bulk — Verified Supplier in China
When sourcing Hot Rolled Spring Steel Sup12 Round Bar 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 SUP12 (JIS G 4801), equivalent to SAE 55Cr3 / AISI 5155, C 0.50-0.60%, Mn 0.70-0.90%, Cr 0.65-0.95%, Si 0.15-0.35%, P max 0.035%, S max 0.035%, and Round Bar, diameter 12mm to 150mm, length 3m to 6m (custom lengths available). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $8002000/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7228.40, making it a staple in the Steel Bars sector with strong demand from importing countries worldwide.
Hot Rolled Spring Steel S Specifications, Trade Terms & Pricing
Importing Hot Rolled Spring Steel S 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 7228.40 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 online 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 Hot Rolled Spring Steel S 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 B2B marketplace. Start your sourcing journey today.
Import Hot Rolled Spring Steel S — Shipping, Logistics & Customs
Importing Hot Rolled Spring Steel S 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 7228.40 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 Hot Rolled Spring Steel S
What is the wholesale price of Hot Rolled Spring Steel Sup12 Round Bar?
The current listed wholesale price for Hot Rolled Spring Steel Sup12 Round Bar from Dongguan Songshun Mould Steel Co., Ltd. is $8002000/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 Hot Rolled Spring Steel S?
The supplier, Dongguan Songshun Mould Steel Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Hot Rolled Spring Steel S. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Hot Rolled Spring Steel Sup12 Round Bar?
For international shipping and customs clearance, Hot Rolled Spring Steel Sup12 Round Bar is classified under HS Code 7228.40. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Hot Rolled Spring Steel S from China?
To import Hot Rolled Spring Steel S 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 Hot Rolled Spring Steel Sup12 Round Bar?
The key specifications for Hot Rolled Spring Steel Sup12 Round Bar supplied by Dongguan Songshun Mould Steel Co., Ltd. include SUP12 (JIS G 4801), equivalent to SAE 55Cr3 / AISI 5155, C 0.50-0.60%, Mn 0.70-0.90%, Cr 0.65-0.95%, Si 0.15-0.35%, P max 0.035%, S max 0.035%, and Round Bar, diameter 12mm to 150mm, length 3m to 6m (custom lengths 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 Hot Rolled Spring Steel S?
Dongguan Songshun Mould Steel Co., Ltd. offers Hot Rolled Spring Steel S with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Hot Rolled Spring Steel S the most?
Hot Rolled Spring Steel S 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 Hot Rolled Spring Steel S supplier hold?
Dongguan Songshun Mould Steel Co., Ltd. maintains international quality certifications. These ensure that the Hot Rolled Spring Steel S meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Hot Rolled Spring Steel Sup12 Round Bar 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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