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High Corrosion Resistant Hot Rolled S32654 / 654SMO Super Austenitic Stainless Steel Seamless Pipe
Product Details
| Shape | Flat | Technique | Hot Rolled |
|---|---|---|---|
| Surface Treatment | Bright | Outer Diameter | OD 6-630mm |
| Production Capacity | 50000kgs | Nickel Content | 21.0-23.0% |
| Chromium Content | 23-25% | Molybdenum Content | 7.0-8.0% |
| Copper Content | 0.3-0.6% | Nitrogen Content | 0.45-0.55% |
| Carbon Content | ≤0.02% | Silicon Content | ≤0.05% |
| Manganese Content | 2.00-4.00% | Phosphorus Content | ≤0.03% |
| Sulfur Content | ≤0.005% | ||
| Highlight | High Corrosion Resistant Stainless Steel Pipe,Hot Rolled Seamless Pipe,S32654 / 654SMO Super Austenitic Stainless Steel Pipe |
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Product Description
High Corrosion Resistant Hot Rolled Stainless Steel Pipe S32654 / 654SMO Seamless Pipe
S32652 (UNS 654SMO) Super Austenitic Stainless Steel Pipe 1.4652 / X1CrNiMOCUN24-22-8
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 standard austenitic steels.
This high-molybdenum content makes the steel hard and sticky during seamless pipe perforation, presenting challenges with eccentricity or cracking. Our specialized manufacturing process uses center-perforated round steel followed by cold rolling or cold drawing to ensure high success rates and quality.
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 both high-temperature resistance and corrosion resistance.
Standards & Specifications
ASTM A312 Seamless and Welded Austenitic Stainless Steel Pipe
ASTM A269 Seamless and Welded Austenitic Stainless Steel Pipe for General Equipment
ASTM B673, ASTM B674, ASTM B677, ASTM B675, ASTM B676, ASTM B690
ASTM A269 Seamless and Welded Austenitic Stainless Steel Pipe for General Equipment
ASTM B673, ASTM B674, ASTM B677, ASTM B675, ASTM B676, ASTM B690
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
- Excellent pitting and crevice corrosion resistance in harsh corrosive environments
- Superior mechanical properties with high yield strength
- Good processability and workability
Size Range
Outer Diameter: 1/4" (6.25mm) to 8" (203mm)
Wall Thickness: 0.02" (0.5mm) to 0.5" (12mm)
Length: 15m (Max) or as required
Wall Thickness: 0.02" (0.5mm) to 0.5" (12mm)
Length: 15m (Max) or as required
Manufacturing Processes
Seamless Pipe/Tube: Cold drawn, Cold rolled, Precision Rolled
Welded Pipe/Tube: Gas tungsten arc welding, Plasma arc welding (PAW), Submerged arc welding (SAW)
Welded Pipe/Tube: Gas tungsten arc welding, Plasma arc welding (PAW), Submerged arc welding (SAW)
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 with plastic cap protection at both tube ends, suitably protected for sea-worthy delivery or as requested.
Quality Assurance & Testing
- 100% PMI, Spectro Chemical Analysis Test for Raw Material
- 100% Dimension & Visual Examination
- Mechanical Properties Test (Tension Test, Flaring Test, Flange Test, Hardness Test, Reversed Flattening Test)
- 100% Hydrostatic Test or 100% NON-DESTRUCTIVE Test (ET or UT)
- Radiographic Test for Welded Pipe
- Optional Tests: Straightness, Roughness, Intergranular Corrosion, Impact, Grain Size Determinations
All test and inspection results are documented in comprehensive reports according to standard specifications and customer requirements.
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