Import Aisi 4140 Steel Tube 1.7225 Hollow Bar — Buy in wholesale FOB from Supplier in China
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Aisi 4140 Steel Tube 1.7225 Hollow Bar
AISI 4140 steel tube, also known as 42CrMo4 or 1.7225, is a chromium-molybdenum alloy seamless hollow bar designed for high-strength applications. This grade delivers exceptional toughness and wear resistance, making it suitable for machinery manufacturing, automotive components, and oil and gas equipment. The material is supplied in various outer diameter and wall thickness configurations, with surface finishes including bright, smooth, and high-precision options achieved through cold drawing and heat treatment processes.
The alloy’s composition includes chromium and molybdenum, which enhance its hardenability and resistance to fatigue. Typical industry standards for this grade include ASTM A519, with mechanical properties such as tensile strength ranging from 850 to 1000 MPa and yield strength around 655 MPa in the normalized condition. Sichuan Liaofu Special Steel Trading Co., Ltd. applies NBK (normalized, bright, and cold drawn) heat treatment to eliminate surface and internal stress, ensuring the tube resists cold bending deformation, flaring, and flattening without cracking or oxidation.
This product is commonly used in hydraulic systems, axles, and structural frameworks where high pressure and dynamic loads are present. Buyers in the industrial and engineering sectors source it for its machinability and ability to retain precision under stress. The tubes are exported in bundled or loose form, with documentation compliant with international trade standards. Confirm packaging, lead times, and specific dimensional tolerances directly with the supplier to align with project requirements.
| Material Grade | AISI 4140 / 42CrMo4 / 1.7225 |
| Type | Seamless Hollow Bar |
| Surface Finish | Bright, smooth, high precision (NBK status) |
| Tensile Strength | 850 - 1000 MPa (typical for normalized condition) |
| Yield Strength | 655 MPa (typical) |
| Hardenability | High, due to chromium and molybdenum content |
| Standards | ASTM A519, DIN EN 10297-1, JIS G4053 |
| Heat Treatment | Normalized, bright, cold drawn (NBK) |
| Packaging | Bundle or loose form, export standard |
| Application Suitability | Machinery, automotive, oil and gas, structural components |
| Outer Diameter Tolerance | Standard ±0.1% of nominal size (typical for cold drawn tubes) |
Sichuan Liaofu Special Steel Trading Co., Ltd. is based in Chengdu, Sichuan, and operates with a focus on alloy steel tubes, including AISI 4140, 4130, and 42CrMo4 grades. The company’s production adheres to ISO 9001:2000 standards, employing advanced cold drawing, cold rolling, and heat treatment processes to achieve high-precision, high-polish finishes. Its facility covers over 8000 square meters and produces an annual output exceeding 5,000 tons, catering to international buyers with export-compliant documentation.
The supplier specializes in seamless steel tubes, precision bright tubing, and fluid-conveying pipes, with capabilities to manufacture per European DIN standards and other international specifications. While the profile indicates a harbor trust tier and no recorded response rate, the company highlights its ability to produce machined parts from drawings and meet custom requirements for surface treatment, dimensional precision, and mechanical performance. Buyers should verify current response times and production capacities directly.
AISI 4140 steel tube (1.7225 / 42CrMo4) is a chromium-molybdenum alloy seamless hollow bar widely used in machinery manufacturing, automotive components, oil and gas equipment, and structural applications requiring high strength and toughness. This product is available in various OD and wall thickness configurations, typically supplied in bundle or loose form for international trade. Ideal for buyers sourcing industrial steel products from Chinese mills with competitive pricing and export documentation.
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Sourcing AISI 4140 Steel Tube 1.7225 Hollow Bar from Sichuan Liaofu Special Steel Trading Co., Ltd. - China Import Guide
Before ordering, verify the tube’s dimensional specifications, heat treatment status, and mechanical properties against your project’s engineering requirements. Request mill test certificates to confirm compliance with ASTM A519 or other relevant standards. Ensure the supplier can provide third-party inspection reports if your application demands stringent quality controls.
Confirm logistics details such as packaging type (bundle or loose), port of shipment, and Incoterms (e.g., FOB or CIF) to align with your import process. Lead times for cold drawn precision tubes can vary; typical ranges are 30 to 60 days depending on size and quantity. Payment terms may include L/C or T/T, but clarify these upfront to avoid delays.
For quality assurance, arrange for pre-shipment inspections to check surface finish, dimensional accuracy, and mechanical properties. Request documentation such as material test reports, heat treatment records, and non-destructive testing results if applicable. Ensure the supplier’s export packaging meets international standards to prevent damage during transit.
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30 suppliersBuy Aisi 4140 Steel Tube 1.72 in Bulk — Verified Supplier in China
When sourcing Aisi 4140 Steel Tube 1.7225 Hollow Bar for your business, securing the right balance of quality and cost is essential. Sichuan Liaofu Special Steel Trading Co., Ltd., a verified supplier based in China, offers this product with key specifications including AISI 4140 / DIN 1.7225 / 42CrMo4 Alloy Steel Hollow Bar, C 0.38-0.45%, Cr 0.90-1.20%, Mo 0.15-0.30%, Mn 0.60-0.90%, Si 0.15-0.30%, and OD 20-300mm, Wall Thickness 5-50mm, Length 1-12m (custom sizes available). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1100/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7304.51, making it a staple in the Stainless Steel Bars sector with strong demand from importing countries worldwide.
Aisi 4140 Steel Tube 1.72 Specifications, Trade Terms & Pricing
Importing Aisi 4140 Steel Tube 1.72 requires careful attention to shipping logistics, customs compliance, and secure payment terms. Sichuan Liaofu Special Steel Trading 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 7304.51 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.
About Sichuan Liaofu Special Steel Trading Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Aisi 4140 Steel Tube 1.72 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 Stainless Steel Bars category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Import Aisi 4140 Steel Tube 1.72 — Shipping, Logistics & Customs
Importing Aisi 4140 Steel Tube 1.72 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 7304.51 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 Aisi 4140 Steel Tube 1.72
What is the wholesale price of Aisi 4140 Steel Tube 1.7225 Hollow Bar?
The current listed wholesale price for Aisi 4140 Steel Tube 1.7225 Hollow Bar from Sichuan Liaofu Special Steel Trading Co., Ltd. is $1100/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 Sichuan Liaofu Special Steel Trading Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Aisi 4140 Steel Tube 1.72?
The supplier, Sichuan Liaofu Special Steel Trading Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Aisi 4140 Steel Tube 1.72. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Aisi 4140 Steel Tube 1.7225 Hollow Bar?
For international shipping and customs clearance, Aisi 4140 Steel Tube 1.7225 Hollow Bar is classified under HS Code 7304.51. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Aisi 4140 Steel Tube 1.72 from China?
To import Aisi 4140 Steel Tube 1.72 from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Sichuan Liaofu Special Steel Trading Co., Ltd.. Ensure you have the necessary import licenses for Stainless Steel Bars products in your destination country.
Is Sichuan Liaofu Special Steel Trading Co., Ltd. a verified supplier?
Yes, Sichuan Liaofu Special Steel Trading 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 Aisi 4140 Steel Tube 1.7225 Hollow Bar?
The key specifications for Aisi 4140 Steel Tube 1.7225 Hollow Bar supplied by Sichuan Liaofu Special Steel Trading Co., Ltd. include AISI 4140 / DIN 1.7225 / 42CrMo4 Alloy Steel Hollow Bar, C 0.38-0.45%, Cr 0.90-1.20%, Mo 0.15-0.30%, Mn 0.60-0.90%, Si 0.15-0.30%, and OD 20-300mm, Wall Thickness 5-50mm, Length 1-12m (custom sizes 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 Aisi 4140 Steel Tube 1.72?
Sichuan Liaofu Special Steel Trading Co., Ltd. offers Aisi 4140 Steel Tube 1.72 with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Aisi 4140 Steel Tube 1.72 the most?
Aisi 4140 Steel Tube 1.72 is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Sichuan Liaofu Special Steel Trading Co., Ltd. through our platform.
What certifications does this Aisi 4140 Steel Tube 1.72 supplier hold?
Sichuan Liaofu Special Steel Trading Co., Ltd. maintains international quality certifications. These ensure that the Aisi 4140 Steel Tube 1.72 meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Aisi 4140 Steel Tube 1.7225 Hollow Bar on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Sichuan Liaofu Special Steel Trading 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 Sichuan Liaofu Special Steel Trading Co., Ltd..
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