Import 4140/4130/4145 Forged Steel Black — Buy in wholesale FOB from Supplier in China
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4140/4130/4145 Forged Steel Black
The 4140, 4130 and 4145 grades are chromium-molybdenum alloy steels supplied as forged round bars with a black finish. Diameters reach 100 mm and lengths extend to 12 000 mm, giving fabricators long, straight bars for machining into shafts, axles and high-load components. These alloys are hot-work tool steels that retain strength and toughness at elevated temperatures, making them suitable for heavy-duty service in oil and gas drilling, machinery and automotive applications.
Composition is typically 0.40 % carbon for 4140, 0.30 % for 4130 and 0.45 % for 4145, with chromium and molybdenum additions that raise hardenability and wear resistance. Standard tensile strength for 4140 in the annealed condition is about 655 MPa, rising to 900 MPa after quenching and tempering. Grain flow from forging improves fatigue resistance compared with rolled bar, and the black scale finish provides temporary corrosion protection during transit and storage.
These forged bars are sourced by manufacturers of gears, sprockets and hydraulic cylinders where high strength-to-weight ratios are critical. Buyers usually specify cut lengths and may request additional heat treatment or machining. Bulk export orders are packed in bundles with steel straps and wooden skids, ready for container loading from Chinese ports. Confirm delivery condition and surface finish before ordering, as these affect final machining allowances.
| Steel Grade | 4140, 4130, 4145 (Chromium-Molybdenum) |
| Form | Forged Round Bars |
| Diameter Range | Up to 100 mm |
| Length Range | Up to 12 000 mm |
| Surface Finish | Black |
| Tensile Strength (4140, Q+T) | Typical 900 MPa |
| Tensile Strength (4140, Annealed) | Typical 655 MPa |
| Carbon Content (4140) | Typical 0.40 % |
| Carbon Content (4130) | Typical 0.30 % |
| Carbon Content (4145) | Typical 0.45 % |
| Hardenability Standard | Standard Jominy test values per ASTM A255 |
| Packaging | Bundled with steel straps and wooden skids |
Dongguan Songshun Mould Steel Co., Ltd. operates from No.4 Dongda Street, Sha Tou, Dongguan 523850, China. The company is classified as an imported-tier supplier with a harbor trust tier, indicating it meets baseline export verification criteria. Its address places it within Guangdong province, a major hub for steel fabrication and export logistics.
The supplier’s profile confirms it specialises in alloy steel bars, including chromium-molybdenum grades, and offers free samples with 24-hour online support. The response rate and average response hours are currently not available, so buyers should expect to confirm lead times and technical queries directly. No additional history, headcount or client list is provided, so inquiries must focus on the stated product range and trade terms.
4140, 4130, and 4145 chrome molybdenum alloy steel forged round bars are hot work tool steel products widely used in oil and gas drilling equipment, machinery components, automotive, and aerospace industries. Supplied in black finish with diameters up to 100mm and lengths up to 12,000mm, these forged bars offer excellent tensile strength and wear resistance for demanding industrial applications. As a leading China supplier, we offer competitive pricing for bulk export orders with free samples and 24-hour online support.
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Sourcing 4140/4130/4145 Forged Steel Black from Dongguan Songshun Mould Steel Co., Ltd. - China Import Guide
Before ordering, verify the exact grade and heat treatment condition required for your application. Confirm whether the bars are supplied in the annealed or quenched and tempered state, as this affects machinability and final mechanical properties. Request mill certificates to validate chemical composition and tensile strength.
Logistics details such as lead time, Incoterms (FOB or CIF) and payment terms must be agreed directly with the supplier. Dongguan’s proximity to major ports like Shenzhen and Guangzhou typically allows for efficient container loading, but confirm transit times and port restrictions for your destination. Buyers should also clarify if the supplier handles export documentation.
Quality checks should include dimensional verification, surface inspection for defects and hardness testing on sample pieces. For critical applications, arrange third-party inspection (e.g., SGS) to validate compliance with ASTM or other relevant standards. Ensure the packaging meets your handling requirements to prevent damage during transit.
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30 suppliersBuy 4140/4130/4145 Forged Ste in Bulk — Verified Supplier in China
When sourcing 4140/4130/4145 Forged Steel Black 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 SAE/AISI 4140, 4130, 4145 (Chromoly Alloy Steel), C: 0.28-0.48%, Cr: 0.80-1.10%, Mo: 0.15-0.30%, Mn: 0.60-1.00% (varies by grade), and Diameter: max 100 mm; Length: max 12,000 mm; Shape: round bar, flat bar, steel plate. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1002000/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.
4140/4130/4145 Forged Ste Specifications, Trade Terms & Pricing
Importing 4140/4130/4145 Forged Ste 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 global 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 4140/4130/4145 Forged Ste 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 import export marketplace. Start your sourcing journey today.
Import 4140/4130/4145 Forged Ste — Shipping, Logistics & Customs
Importing 4140/4130/4145 Forged Ste 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 4140/4130/4145 Forged Ste
What is the wholesale price of 4140/4130/4145 Forged Steel Black?
The current listed wholesale price for 4140/4130/4145 Forged Steel Black from Dongguan Songshun Mould Steel Co., Ltd. is $1002000/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 4140/4130/4145 Forged Ste?
The supplier, Dongguan Songshun Mould Steel Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for 4140/4130/4145 Forged Ste. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for 4140/4130/4145 Forged Steel Black?
For international shipping and customs clearance, 4140/4130/4145 Forged Steel Black 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 4140/4130/4145 Forged Ste from China?
To import 4140/4130/4145 Forged Ste 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 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 4140/4130/4145 Forged Steel Black?
The key specifications for 4140/4130/4145 Forged Steel Black supplied by Dongguan Songshun Mould Steel Co., Ltd. include SAE/AISI 4140, 4130, 4145 (Chromoly Alloy Steel), C: 0.28-0.48%, Cr: 0.80-1.10%, Mo: 0.15-0.30%, Mn: 0.60-1.00% (varies by grade), and Diameter: max 100 mm; Length: max 12,000 mm; Shape: round bar, flat bar, steel plate. 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 4140/4130/4145 Forged Ste?
Dongguan Songshun Mould Steel Co., Ltd. offers 4140/4130/4145 Forged Ste with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import 4140/4130/4145 Forged Ste the most?
4140/4130/4145 Forged Ste 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 4140/4130/4145 Forged Ste supplier hold?
Dongguan Songshun Mould Steel Co., Ltd. maintains international quality certifications. These ensure that the 4140/4130/4145 Forged Ste meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for 4140/4130/4145 Forged Steel Black 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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