In Stock
Heavy-Duty Rolling Blade for Duplex Stainless Steel
Extreme-performance rolling blades designed for the high-torque extrusion of Duplex and Super Duplex stainless steel finned tubes.
- Compatible Alloys:
- Duplex 2205 (S31803 / S32205), Super Duplex 2507 (S32750), 310S, Zeron 100
- Applicable Standards:
- ASTM A789 / A790, ASTM A1012 / ASME SA1012, SA789
- Blade Material Grade:
- Special High-Molybdenum Cr12MoV / HSS M2 (Vacuum Remelted Tool Steel)
- Surface Coating & Polish:
- Multi-Layer AlTiN / CrN PVD Coating | Anti-Galling Polish (Ra < 0.12 μm)
- Operating Hardness:
- 64-66 HRC (Cryogenically & Vacuum Stabilized)
- Application:
- Desalination Evaporators, Offshore Platforms, Nuclear & Acid Processing
Applicable StandardsASTM / ASME B359, SB359, B111, B444, DIN EN 12451
Tooling Material GradesCr12MoV, D2, SKD11, High-Speed Steel M2, Carbide
Precision Tolerance±0.005 mm (±0.0002 in) Ground Finish
Compatible TubingCopper (C70600, C71500), Stainless Steel, Aluminum
Technical Specifications
Engineering for High-Strength Alloys
Processing Duplex stainless steel requires up to 40% more rolling force than standard 316L. Nexmek blades are designed with a reinforced hub and optimized flank angles to distribute these forces evenly, preventing catastrophic tool failure while maintaining precision fin geometry.
- Reinforced blade profile for high-torque applications on S31803 & S32750
- Optimized for alloys with yield strengths up to 550 MPa (80 ksi)
- Proprietary edge-honing process to reduce stress concentration and micro-chipping
Tool Longevity & Performance Benchmarks
Our HD series blades are tested against standard HSS tooling to ensure maximum return on investment for high-grade alloy production.
| Performance Metric | Standard HSS Blade | Nexmek HD Series (Duplex Rated) |
|---|---|---|
| Average Tool Life (Meters / Feet) | 1,200m - 1,500m (3,930ft - 4,920ft) | 4,500m - 6,000m+ (14,760ft - 19,680ft+) |
| Edge Chipping Risk | High Risk on Duplex | Negligible (Cryo Hardened) |
| Max Operating Temp | 450°C (842°F) | 650°C+ (1,200°F+ Thermal Cap) |
| FPI Precision & Tolerance | Moderate (±0.02mm) | High-Precision (±0.005mm / ±0.0002") |
Critical Harsh-Environment Applications
Tubes produced with our Duplex-rated tooling are vital for infrastructure in the world's most corrosive environments:
- Seawater Desalination Plant Evaporators
- Offshore Platform Oil & Gas Coolers
- Nuclear Reactor Secondary Cooling Loops
- Chemical Processing in Extreme Acidic Environments