840 Series N08825/N08800 Seamless Stainless Steel Pipes & Tubes for Electric Heating & Industrial Use
2026/07/16
Introducing the 840 Series: Premium Seamless Stainless Steel Pipes & Tubes
We are proud to announce the launch of our 840 Series seamless stainless steel pipes and tubes, featuring premium N08825 and N08800 nickel-alloy grades. Available in round, square, and rectangular profiles, this comprehensive product line is engineered for electric heating, titanium processing, and demanding industrial applications where reliability and corrosion resistance are non-negotiable.
Built to meet rigorous international standards, the 840 Series combines advanced metallurgy with precision manufacturing to deliver exceptional performance across a wide range of operating conditions, from high-temperature heating elements to chemical processing equipment.
Key Specifications at a Glance
| Specification | Details |
|---|---|
| Material Grades | N08825, N08800, 304, 304L, 309S, 310S, 316, 316Ti, 317, 317L, 321, 347, 347H, 304N, 316L, 316N, 201, 202 |
| International Standards | JIS, SUS, GB, DIN, ASTM, AISI, EN |
| Surface Finish | Polishing, Annealing, Pickling, Bright |
| Manufacturing Technique | Cold Rolled & Hot Rolled |
| Round Tube | Wall Thickness: 1mm–150mm | OD: 6mm–2500mm |
| Square Tube | Wall Thickness: 1mm–150mm | Size: 4mm×4mm–800mm×800mm |
| Rectangular Tube | Wall Thickness: 1mm–150mm | OD: 6mm–2500mm |
| Length Options | 4000mm, 5800mm, 6000mm, 12000mm, or Custom |
| MOQ | 1 Ton |
Why Choose the 840 Series?
Unmatched Material Versatility
With over 17 material grades available — from standard austenitic stainless steels (304, 316, 321) to high-performance nickel alloys (N08825, N08800) — our 840 Series covers virtually every industrial requirement. The N08825 and N08800 grades offer superior resistance to oxidation, carburization, and sulfidation at elevated temperatures, making them ideal for electric heating elements and thermal processing applications.
Precision Dimensional Control
Every tube is manufactured to tight dimensional tolerances using advanced cold-rolling and hot-rolling techniques. Wall thicknesses range from ultra-thin 1mm profiles to heavy-duty 150mm walls, with outer diameters spanning 6mm to 2500mm. Square and rectangular options extend up to 800mm×800mm, providing unmatched structural versatility.
Diverse Surface Treatments
- Polished Finish: Ideal for architectural and decorative applications requiring a mirror-like surface.
- Annealed Finish: Ensures optimal ductility and stress relief for forming and bending operations.
- Pickled Finish: Removes scale and impurities, delivering a clean, uniform surface ready for further processing.
- Bright Finish: Achieved through controlled atmosphere annealing for maximum corrosion resistance.
Primary Applications
The 840 Series serves a broad spectrum of industries and use cases:
- Electric Heating & Titanium Processing — Core application with N08825/N08800 grades optimized for high-temperature resistance
- Architecture & Exterior Decoration — Polished and bright finishes for aesthetic installations
- Elevator & Interior Systems — Precision tubes for cabin frames, handrails, and decorative panels
- Kitchen & Food Processing Equipment — Hygienic, easy-to-clean surfaces meeting strict sanitation standards
- Shipbuilding & Marine Structures — Corrosion-resistant grades for harsh saltwater environments
- Roof Structures & Building Frameworks — High-strength profiles for load-bearing applications
- Advertising & Signage — Durable, bright surfaces for long-lasting outdoor displays
Quality Assurance & Certifications
Quality is the cornerstone of our manufacturing philosophy. Each product undergoes rigorous inspection in certified workshops, adhering to national QA/QC standards. We provide comprehensive warranties and fully accept third-party inspections for complete transparency. From raw material sourcing to final packaging, traceability is maintained at every step.
Flexible Commercial Terms
| Term | Options |
|---|---|
| Trade Terms | EXW, FOB, CIF, CFR |
| Loading Ports | Shanghai, Tianjin, Qingdao, or Custom |
| Payment | T/T (30% advance + 70% before delivery) | 30% T/T + 70% L/C at sight | 100% L/C at sight |
| Delivery Time | 10–20 days after deposit or LC confirmation (varies by order quantity) |
| Packing | Plastic bag / woven packing, or customized per requirements |
| Samples | Free samples provided; freight covered by buyer |
Partner with a Trusted Manufacturer
With a corporate philosophy rooted in continuous improvement and customer-centric innovation, we are committed to building long-term partnerships worldwide. Our team combines decades of metallurgical expertise with responsive service to deliver solutions, not just products. We welcome inquiries for both standard and custom specifications — our flexible MOQ of just 1 ton accommodates businesses of all sizes.
Frequently Asked Questions
Q: Will you deliver on time?
A: Yes, we guarantee punctual delivery and consistent product quality. Honesty is our company's tenet.
Q: Are samples free?
A: Samples are free; only courier freight is covered by the customer.
Q: Do you accept third-party inspections?
A: Absolutely. We fully welcome third-party inspections for complete peace of mind.
Q: How do you guarantee quality?
A: All products are manufactured in certified workshops and inspected to national and international QA/QC standards, backed by formal warranties.
Contact us today to discuss your requirements and request a quotation for the 840 Series seamless stainless steel pipes and tubes.
