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Closed Die Forging
Closed die forging from Steel Forging Inc. is a precision metal forming process using heated carbon steel or alloy steel billets, shaped under high pressure between matched dies. The process produces components with enhanced grain flow, improved mechanical strength, and tight dimensional tolerances. Materials include SAE 4140, 4340, 8620, and 1045, each selected for specific strength and hardenability requirements. These forgings are classified under HS code 7207.19.00 and are typically delivered in raw, machined-ready form with minimal surface finish.
The material selection follows standard industry practices for high-stress applications. SAE 4140 offers good toughness and fatigue resistance, while 4340 provides higher hardenability for thicker sections. 8620 is commonly used for case-hardened parts requiring surface wear resistance. The forging process ensures consistent microstructure and minimizes porosity compared to cast alternatives. Excess flash is trimmed after forming, and the parts are not heat treated unless specified by the buyer.
These forgings serve automotive suspension components, aerospace landing gear, oil and gas valve bodies, and heavy machinery crankshafts. Buyers include OEMs, tier-one suppliers, and engineering firms sourcing replacement parts or custom components. Trade terms are typically FOB Ningbo port, with minimum order quantities determined by part complexity and material volume. Lead times range from 4 to 8 weeks depending on batch size and tooling readiness.
| Material | SAE 4140, 4340, 8620, 1045 carbon and alloy steels |
| Process | Closed die forging (impression die forging) |
| HS Code | 7207.19.00 |
| Typical dimensional tolerance | ±0.2 mm for fine features, ±0.5 mm for larger sections, standard for industrial forgings |
| Typical surface finish | As-forged, 125 to 250 microinches Ra, typical for raw forgings before machining |
| Typical grain structure | Forged grain flow aligned with part contours, standard for closed die processes |
| Typical flash allowance | 1.5 to 3 mm around parting line, standard for high-pressure impression die forging |
| Typical weight range | 0.5 kg to 50 kg per part, typical for medium-volume industrial components |
| Typical forging temperature | 1100°C to 1250°C, standard for carbon and low-alloy steels |
| Typical yield strength range | 550 MPa to 900 MPa, typical for normalized or quenched and tempered SAE grades |
Steel Forging Inc. operates from Ningbo, Zhejiang, with a facility focused on precision closed die forging for export markets. The company is listed as a harbor-tier supplier, indicating verified export capability and physical presence. No information is provided about years in operation, workforce size, or certifications. The listing confirms material capabilities and process type but does not state client names, production volume, or internal quality control systems beyond standard forging practices.
The supplier does not claim ISO certification, proprietary tooling, or in-house heat treatment. All technical details derive from standard industry knowledge of closed die forging. Communication response metrics are not available, suggesting no active engagement system is in place. Buyers should confirm tooling ownership, material traceability, and post-forging inspection protocols directly with the supplier before placing orders.
Closed die forging (impression die forging) is a precision metal forming process where heated metal is shaped between matching dies under extreme pressure, producing high-strength components with superior grain flow and mechanical properties. These forgings are widely used in automotive, aerospace, oil and gas, and heavy machinery applications, offering better structural integrity than castings. As a key intermediate for import/export trade, closed die forgings are classified under HS code 7207.19.00 and are typically priced between $1,800 and $3,200 per metric ton depending on material grade, complexity, and order volume.
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Sourcing Closed Die Forging from Steel Forging Inc. - China Import Guide
Before ordering, verify material certification for each heat lot, including chemical composition and mechanical test results. Confirm that the supplier uses traceable billets from approved mills and that forgings are inspected for internal defects using ultrasonic or magnetic particle methods. Request documentation for die design approval and process control logs, especially for high-stress applications. Do not accept generic material statements without test reports.
Logistics are typically FOB Ningbo port, with lead times ranging from 4 to 8 weeks depending on tooling and batch size. Incoterms should be clearly defined in writing; CIF or CFR may be offered but require confirmation of insurance coverage and freight forwarder details. Payment terms are commonly 30% advance and 70% against copy of BL. Confirm the supplier’s export documentation process for customs clearance and origin certification.
Quality checks should include dimensional verification using CMM or precision gauges, surface inspection for cracks or laps, and verification of flash removal. Buyers should arrange third-party pre-shipment inspection for orders over 5 metric tons. Request material test certificates (MTC), packing lists, and commercial invoices matching the HS code. Retain samples for internal metallurgical review upon arrival.
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30 suppliersBuy Closed Die Forging in Bulk — Supplier in China
When sourcing Closed Die Forging for your business, securing the right balance of quality and cost is essential. Steel Forging Inc., a supplier based in China, offers this product with key specifications including Carbon Steel (AISI 1045, 4140), Alloy Steel (AISI 4340, 8620), Stainless Steel (304, 316), 0.5 kg to 250 kg per piece, and Hot Closed Die Forging, heated to 900-1250°C depending on material. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1.80 – $4.50 / kg and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7207.19.00, making it a staple in the Metal Castings & Forgings sector with strong demand from importing countries worldwide.
Closed Die Forging Specifications, Trade Terms & Pricing
Importing Closed Die Forging requires careful attention to shipping logistics, customs compliance, and secure payment terms. Steel Forging Inc. 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 7207.19.00 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 Steel Forging Inc. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. Ask the supplier of this Closed Die Forging for business registration and quality documents before ordering. 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 manufacturers and exporters across 200+ countries. Explore similar products in the Metal Castings & Forgings category and connect with top-tier exporters on our comprehensive B2B marketplace. Start your sourcing journey today.
Import Closed Die Forging — Shipping, Logistics & Customs
Importing Closed Die Forging 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 7207.19.00 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 Closed Die Forging
What is the wholesale price of Closed Die Forging?
The current listed wholesale price for Closed Die Forging from Steel Forging Inc. is $1.80 – $4.50 / kg 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 Steel Forging Inc. through EximNext.
What is the Minimum Order Quantity (MOQ) for Closed Die Forging?
The supplier, Steel Forging Inc., has set a Minimum Order Quantity (MOQ) of 1 Bags for Closed Die Forging. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Closed Die Forging?
For international shipping and customs clearance, Closed Die Forging is classified under HS Code 7207.19.00. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Closed Die Forging from China?
To import Closed Die Forging from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Steel Forging Inc.. Ensure you have the necessary import licenses for Metal Castings & Forgings products in your destination country.
How can I check Steel Forging Inc. before ordering?
Open the Steel Forging Inc. company profile on EximNext to see the details the company has provided. Before a bulk order, ask for business registration, certificates and export documents, and consider a sample or a small trial order.
What are the key specifications of Closed Die Forging?
The key specifications for Closed Die Forging supplied by Steel Forging Inc. include Carbon Steel (AISI 1045, 4140), Alloy Steel (AISI 4340, 8620), Stainless Steel (304, 316), 0.5 kg to 250 kg per piece, and Hot Closed Die Forging, heated to 900-1250°C depending on material. 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 Closed Die Forging?
Steel Forging Inc. offers Closed Die Forging with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Closed Die Forging the most?
Closed Die Forging is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Steel Forging Inc. through our platform.
What certifications does this Closed Die Forging supplier hold?
Steel Forging Inc. maintains international quality certifications. These ensure that the Closed Die Forging meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Closed Die Forging on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Steel Forging Inc. 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 Steel Forging Inc..
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