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Help Center5083-H112 Marine Grade Aluminum Welding Tube for Chemical and Shipbuilding Industries
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Wuxi Yansheng Technology Co., Ltd. takes pride in offering the 5083-H112 Marine Grade Aluminum Welding Tube, specifically engineered for the demanding environments of the chemical and shipbuilding industries. As a manufacturer established in 2017 with a factory spanning 1,000–3,000 square meters and an annual export value exceeding US$50 million, we combine advanced production capabilities with rigorous quality control to deliver tubes that meet the highest standards. Our 5083-H12 tubes are designed to withstand corrosive chemicals, saltwater exposure, and extreme structural loads, making them the reliable choice for pipelines, tankers, and offshore platforms.
Each tube is produced from high-purity 5083 aluminum alloy in the H112 temper, which offers an optimal balance of strength, workability, and weldability. The H112 temper ensures the material is suitable for welding without sacrificing mechanical properties, allowing for easy fabrication and integration into complex structures. Whether you need standard sizes or custom dimensions, our flexible manufacturing process ensures consistent quality across every batch.
Key Features & Benefits
- Exceptional Corrosion Resistance: 5083 alloy contains magnesium and small amounts of manganese, providing superior resistance to seawater, chemicals, and industrial environments – ideal for chemical storage tanks and ship hulls.
- Excellent Weldability: The H112 temper ensures the tube can be welded using common techniques (TIG, MIG) with minimal risk of cracking, reducing fabrication time and cost.
- High Strength-to-Weight Ratio: 5083-H12 offers tensile strength up to 320 MPa while being approximately one-third the weight of steel, enabling lighter structures without compromising load capacity.
- Stress-Corrosion Cracking Resistance: This alloy is known for its immunity to stress-corrosion cracking, even in harsh marine atmospheres, ensuring long-term reliability.
- Customizable Dimensions: Available in a wide range of outer diameters (1/2" to 12"), wall thicknesses (1mm to 20mm), and lengths (up to 12m) to meet your specific project requirements.
- Consistent Mechanical Properties: Our controlled heat treatment process guarantees uniform hardness and ductility throughout the tube, minimizing waste during machining and welding.
Technical Specifications (Typical Values)
| Property | Value |
| Alloy | 5083 |
| Temper | H112 |
| Tensile Strength (MPa) | 290 – 320 |
| Yield Strength (MPa) | 230 – 260 |
| Elongation (%) | 12 – 16 |
| Hardness (HB) | 75 – 85 |
| Standard Compliance | ASTM B241 / ASME SB241 (or equivalent on request) |
| Available Surface | Mill finish, anodized, or polished |
| Maximum Length | 12 meters (customizable) |
Our 5083-H12 tubes are widely used in chemical storage tanks, pressure vessels, shipbuilding (hull structures, deck piping), offshore platforms, and marine equipment. The combination of high strength, lightweight, and excellent corrosion resistance makes them a preferred material for engineers who require long service life with minimal maintenance.
Trusted Manufacturing & Quality Assurance
At Wuxi Yansheng Technology Co., Ltd., we operate a modern factory with 101–200 experienced employees and a quality management system certified under ISO9001, HACCP, SA8000, and other international standards. Every tube undergoes rigorous inspection including dimensional checks, chemical composition analysis, and mechanical testing. Our annual export value of US$50–100 million demonstrates our capacity to serve global markets across North America, Europe, Asia, and Oceania.
We offer flexible shipping options from major ports such as Tianjin, Shanghai, Qingdao, and Ningbo. With a strong commitment to on-time delivery and customer satisfaction, we have built long-term partnerships with leading chemical and shipbuilding companies worldwide. Our in-house engineering team can also assist with technical support, custom packaging, and special surface treatments to match your specific needs.
Choose Wuxi Yansheng Technology for your next project and experience the difference of quality, reliability, and global service. Contact our sales team today to request a quote, discuss custom dimensions, or obtain samples for testing.
Frequently Asked Questions (FAQ)
Q1: What is the difference between 5083-H12 and other tempers like H116 or H321?
A: H112 is an as-fabricated temper that still maintains good workability and weldability, making it ideal for welding tubes. H116 and H321 offer higher strength but may require post-weld heat treatment. For most chemical and shipbuilding welded tube applications, H112 provides an excellent balance of properties.
Q2: Can I get tubes in non-standard diameters or wall thicknesses?
A: Yes, we offer custom sizes upon request. Please provide your specific dimensions, and our production team will evaluate feasibility and lead time. Minimum order quantities may apply for custom sizes.
Q3: How does this tube perform in high-temperature chemical environments?
A: 5083 alloy is generally suitable for continuous service up to 150°C (302°F). For higher temperature chemical processes, we recommend consulting our technical team to consider alternative alloys like 6061 or 6082.
Q4: What welding methods are recommended for this tube?
A: 5083-H12 is compatible with TIG (GTAW), MIG (GMAW), and resistance welding. Preheating is generally not required, but proper filler metal (e.g., ER5356 or ER5183) should be used to maintain corrosion resistance.
Q5: Do you provide mill test certificates (MTC) for each batch?
A: Absolutely. Every shipment includes a comprehensive Mill Test Certificate with chemical composition, mechanical properties, and compliance with applicable standards. Third-party inspection can also be arranged.
Q6: What is the typical lead time for standard sizes?
A: For standard diameters and wall thicknesses (e.g., 2" OD x 3mm wall), lead time is approximately 15–25 working days after order confirmation, depending on quantity. Custom sizes may require 30–45 days.
Q7: Can you supply tubes with surface anodizing or polishing?
A: Yes, we offer anodizing (clear or color) and mechanical polishing as optional surface treatments. Anodizing enhances corrosion and wear resistance. Please specify your requirement when ordering.
Q8: Which ports do you ship from, and can you handle door-to-door delivery?
A: We primarily ship from Tianjin, Shanghai, Qingdao, and Ningbo ports. Door-to-door service is available for many destinations via our logistics partners. Contact us for a detailed shipping quote to your location.
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