Import Astm B444 Haynes 556 Nickel Alloy Tube — Buy in wholesale FOB from Supplier in China
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ASTM B444 Haynes 556 Nickel Alloy Tube
This ASTM B444 seamless tube is produced from Haynes 556 nickel alloy (UNS N05556), a cobalt-free nickel-chromium-iron alloy engineered for extreme-temperature service. The tube meets ASTM B444 and B829 standards and is designed for continuous operation up to 1095°C, offering oxidation resistance and high tensile strength in aggressive thermal environments. Its metallurgy includes tungsten and molybdenum additions that stabilise the microstructure during prolonged exposure to heat, making it suitable for gas turbine components and furnace parts.
Haynes 556 is a solid-solution strengthened alloy with typical density of 8.58 g/cm³ and thermal conductivity of 10.9 W/m·K at 20°C, standard for this grade. The seamless tube form ensures uniform wall thickness and smooth internal bore, which is critical for fluid flow in corrosive media. Industry practice for this alloy includes solution annealing at 1150-1200°C to relieve stresses from forming, a treatment that enhances ductility and corrosion resistance.
Primary buyers are OEMs in aerospace, chemical processing and power generation sectors who require piping systems for hot, corrosive gases or liquids. The material is commonly specified for combustion liners, ducting and heat exchangers where sulfur-containing compounds or reducing atmospheres are present. Import orders for this grade are typically shipped in 6m lengths with mill test certificates to EN 10204 3.1, and buyers should confirm packaging and handling protocols to prevent surface contamination.
| Alloy Grade | Haynes 556 (UNS N05556) |
| Manufacturing Standard | ASTM B444, ASTM B829 |
| Form | Seamless tube |
| Typical Density | 8.58 g/cm³ (standard for Haynes 556) |
| Typical Thermal Conductivity | 10.9 W/m·K at 20°C (standard for Haynes 556) |
| Maximum Continuous Service Temperature | 1095°C |
| Typical Solution Annealing Temperature | 1150-1200°C (standard for this alloy) |
| Primary Alloying Elements | Ni, Cr, Fe, Co, W, Mo |
| Typical Applications | Gas turbine components, furnace parts, corrosive environment piping |
| Common Lengths | 6m (typical for seamless alloy tubes) |
ARK Steel Tube Company is based in Taizhou, Zhejiang Province, with its office located at E802, Xintai Square Building in Jiaojiang District. The supplier operates in the harbor trust tier and specialises in high-temperature alloy tubing for industrial applications, including nickel-based alloys like Haynes 556. Its product range covers seamless tubes and pipes for aerospace, chemical and power generation sectors, with a focus on export markets.
The company’s profile indicates it supplies to markets across the Americas, Europe, Asia and Africa, with a stated reputation in regions such as the USA, Germany, Russia and South Korea. However, the listing does not provide verified response rates or average response times, so buyers should confirm communication channels directly. The supplier’s description highlights compliance with multiple ASTM standards for nickel alloy tubes, but specific certifications or third-party inspections are not detailed in the available data.
Haynes 556 nickel alloy seamless tube meets ASTM B444 and B829 standards, designed for high-temperature applications in aerospace, chemical processing, and power generation industries. This nickel-chromium alloy tube offers exceptional oxidation resistance and strength at elevated temperatures up to 1095°C. Widely sourced from global mills for import/export, it is commonly used in gas turbine components, furnace parts, and corrosive environment piping systems. Available in various schedules and diameters for industrial flange and piping installations.
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Sourcing ASTM B444 Haynes 556 Nickel Alloy Tube from ARK Steel Tube Company - China Import Guide
Before placing an order, verify the tube’s compliance with ASTM B444 and B829 standards by requesting the mill test certificate (EN 10204 3.1). Confirm that the heat number, size and grade match the purchase order, and check for third-party inspection reports if required by your quality management system. Request samples for metallurgical analysis if the application demands strict material traceability.
Logistics for this product typically involve sea freight from Chinese ports such as Ningbo or Shanghai, with lead times of 6-12 weeks depending on the order size and production schedule. Clarify the Incoterms offered by ARK Steel Tube Company, as these will determine responsibility for shipping, insurance and customs clearance. Common terms for bulk alloy tube orders include FOB or CFR, with payment via irrevocable letter of credit.
Quality checks should include dimensional inspection to verify outer diameter, wall thickness and straightness, as well as visual examination for surface defects. For critical applications, perform non-destructive testing such as eddy current or ultrasonic testing to detect subsurface flaws. Ensure the material’s chemical composition and mechanical properties align with ASTM B444 requirements, and retain documentation for traceability throughout the product’s lifecycle.
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30 suppliersBuy Astm B444 Haynes 556 Nick in Bulk — Verified Supplier in China
When sourcing Astm B444 Haynes 556 Nickel Alloy Tube for your business, securing the right balance of quality and cost is essential. ARK Steel Tube Company, a verified supplier based in China, offers this product with key specifications including Haynes 556 / UNS N05556, ASTM B444 Grade 2, Ni-Cr-Fe-Co alloy with Mo, W, Ta additions, and OD 1/2" to 12", Schedule 10S to 80S, custom lengths. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $4872./Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7505.11, making it a staple in the Flanges sector with strong demand from importing countries worldwide.
Astm B444 Haynes 556 Nick Specifications, Trade Terms & Pricing
Importing Astm B444 Haynes 556 Nick requires careful attention to shipping logistics, customs compliance, and secure payment terms. ARK Steel Tube Company 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 7505.11 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 ARK Steel Tube Company — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Astm B444 Haynes 556 Nick 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 Flanges category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Import Astm B444 Haynes 556 Nick — Shipping, Logistics & Customs
Importing Astm B444 Haynes 556 Nick 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 7505.11 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 Astm B444 Haynes 556 Nick
What is the wholesale price of Astm B444 Haynes 556 Nickel Alloy Tube?
The current listed wholesale price for Astm B444 Haynes 556 Nickel Alloy Tube from ARK Steel Tube Company is $4872./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 ARK Steel Tube Company through EximNext.
What is the Minimum Order Quantity (MOQ) for Astm B444 Haynes 556 Nick?
The supplier, ARK Steel Tube Company, has set a Minimum Order Quantity (MOQ) of 1 Bags for Astm B444 Haynes 556 Nick. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Astm B444 Haynes 556 Nickel Alloy Tube?
For international shipping and customs clearance, Astm B444 Haynes 556 Nickel Alloy Tube is classified under HS Code 7505.11. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Astm B444 Haynes 556 Nick from China?
To import Astm B444 Haynes 556 Nick from China, negotiate shipping terms (FOB, CIF, or EXW) directly with ARK Steel Tube Company. Ensure you have the necessary import licenses for Flanges products in your destination country.
Is ARK Steel Tube Company a verified supplier?
Yes, ARK Steel Tube Company 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 Astm B444 Haynes 556 Nickel Alloy Tube?
The key specifications for Astm B444 Haynes 556 Nickel Alloy Tube supplied by ARK Steel Tube Company include Haynes 556 / UNS N05556, ASTM B444 Grade 2, Ni-Cr-Fe-Co alloy with Mo, W, Ta additions, and OD 1/2" to 12", Schedule 10S to 80S, custom lengths. 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 Astm B444 Haynes 556 Nick?
ARK Steel Tube Company offers Astm B444 Haynes 556 Nick with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Astm B444 Haynes 556 Nick the most?
Astm B444 Haynes 556 Nick is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from ARK Steel Tube Company through our platform.
What certifications does this Astm B444 Haynes 556 Nick supplier hold?
ARK Steel Tube Company maintains international quality certifications. These ensure that the Astm B444 Haynes 556 Nick meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Astm B444 Haynes 556 Nickel Alloy Tube on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. ARK Steel Tube Company 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 ARK Steel Tube Company.
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