ASTM/ASME 416Se Stainless Steel Pipes & Tubes are selenium-modified martensitic (UNS S41623) products conforming to ASTM A213/A268 standards, featuring a selenium-enhanced (0.15% min.) chromium (12-14%) composition for superior machinability and consistent chip-breaking performance compared to sulfur-based 416 grade. This advanced free-machining alloy maintains the core corrosion resistance of 410 stainless while achieving exceptional surface finish quality (Ra <32 µin) and extended tool life in high-speed CNC operations. The selenium addition promotes uniform chip formation and reduces built-up edge during machining, making it particularly suitable for precision components like hydraulic valve bodies, instrument parts, and aerospace fasteners requiring tight tolerances. While primarily specified for machined components rather than structural applications, 416Se stainless steel tubes offer manufacturers optimized production efficiency for complex parts, with recommended post-weld heat treatment (tempering at 650-750°C) to restore corrosion resistance in fabricated assemblies. The alloy maintains useful hardness (up to 40 HRC when heat-treated) with better isotropic mechanical properties than sulfur-bearing grades, making it a premium choice for critical machined parts in chemical processing, automotive, and medical equipment applications.
| Brand Name | BEALL |
| Place of Origin | Jiangsu, China |
| Section Shape | Round, Square, etc. |
| Standard | ASTM/ASME/AISI/... |
| Delivery Time | 8-14 days in stock |
| Processing Service | Bending, Welding, Decoiling, Punching, Cutting, Moulding |
| Outer diameter | 1/2''~60'' |
| Wall Thickness | As your request |
| Length | 1-12m, as your request |
| Packaging | Seaworthy packing, or as your request |
| Payment Terms | TT 30% in advance, balance before the shipment |
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