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654smo Seamless Tubing Super Austenitic Stainless Steel Pipe with High Molybdenum Content and Excellent Pitting Corrosion Resistance
Product Details
| Model NO. | 654smo | Shape | Flat |
|---|---|---|---|
| Technique | Hot Rolled | Surface Treatment | Bright |
| Specification | OD 6-630mm | Production Capacity | 50000kgs |
| Material | S32652 UNS 654SMO 1.4652 X1CrNiMOCUN24-22-8 | Carbon Content | ≤0.02 |
| Silicon Content | ≤0.05 | Manganese Content | 2.00-4.00 |
| Nickel Content | 21.0-23.0 | Chromium Content | 23-25 |
| Molybdenum Content | 7.0-8.0 | Nitrogen Content | 0.45-0.55 |
| Copper Content | 0.3-0.6 | ||
| Highlight | Corrosion Resistant 654smo Seamless Tubing,High Molybdenum Content Super Austenitic Stainless Steel Pipe,Excellent Pitting Corrosion Resistance UNS S32654 Seamless Pipe |
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Product Description
654SMO Seamless Tubing (UNS S32654, 1.4652, Alloy 654, 654 SMO) Seamless Pipe
S32652 (UNS 654SMO) Super Austenitic Stainless Steel pipe 1.4652 / X1CrNiMOCUN24-22-8 manufactured to ASTM A312, ASTM A269 standards.
Material Description
654SMO (S32654, 1.4652) super austenitic stainless steel is a premium alloy containing 23% nickel, 25% chromium and 7% molybdenum, offering significantly superior corrosion resistance compared to ordinary austenitic steels.
This high-molybdenum steel presents manufacturing challenges during seamless pipe perforation due to its hard, sticky nature, which can lead to eccentricity or cracking. Our specialized center-perforation process followed by cold rolling or cold drawing ensures high success rates despite increased production costs.
654SMO demonstrates exceptional local corrosion resistance with superior pitting and stress corrosion resistance in seawater, aeration, gaps, and low-speed erosion conditions. It serves as an effective alternative to nickel-based alloys and titanium alloys, outperforming 904L and 254SMO in high temperature and corrosion resistance applications.
Standards & Specifications
Chemical Composition
| Element | Content (%) |
|---|---|
| C | ≤0.02 |
| Si | ≤0.05 |
| Mn | 2.00-4.00 |
| Ni | 21.0-23.0 |
| P | ≤0.03 |
| S | ≤0.005 |
| Cr | 23-25 |
| Mo | 7.0-8.0 |
| N | 0.45-0.55 |
| Cu | 0.3-0.6 |
Performance Characteristics
Size Range
OD: 1/4" (6.25mm) to 8" (203mm)
WT: 0.02" (0.5mm) to 0.5" (12mm)
Length: 15m (Max) or as required
Manufacturing Processes
Seamless Pipe/Tube
Welded Pipe/Tube
Finishing Options
Annealed & pickled, bright annealing, polished
End Preparation
Beveled or plain end, square cut, burr free with plastic cap protection at both ends
Packaging
Bare packing/bundle packing with woven bag/wooden or steel frame crate packing/plastic cap protection at both sides of tubes, suitably protected for sea-worthy delivery or as requested.
Inspection and Testing Procedures
Note: All test and inspection results are documented in reports according to standard specifications.
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