Corrosion Resistant 654smo Seamless Tubing with High Molybdenum Content for Seawater Applications
Price:
5.15
MOQ:
50
Delivery Time:
Negotiable
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 and ASTM A269 standards, these S32652 UNS 654SMO 1.4652 X1CrNiMOCUN24-22-8 super austenitic stainless steel pipes and tubes offer superior corrosion resistance and mechanical properties.
Material Description
654SMO (S32654, 1.4652) super austenitic stainless steel contains 23% nickel, 25% chromium, and 7% molybdenum, providing significantly better corrosion resistance than standard austenitic steels.
The high molybdenum content makes this material hard and sticky during seamless pipe perforation, requiring specialized center perforation and cold rolling/drawing processes to ensure high success rates and prevent eccentricity or cracking.
This alloy demonstrates excellent local corrosion resistance with superior pitting and stress corrosion resistance in seawater, aeration, gaps, and low-speed erosion conditions, serving as a cost-effective alternative to nickel-based alloys and titanium alloys.
Standards
- 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
Chemical Composition
| Element | Composition (%) |
|---|---|
| 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 and high yield strength
- Good processability and formability
Size Range
Tubing Dimensions:
OD: 1/4" (6.25mm) to 8" (203mm)
WT: 0.02" (0.5mm) to 0.5" (12mm)
Length: 15m (Max) or as required
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
- Cold drawn
- Cold rolled
- Precision rolled
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, 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
- 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
- Straightness Test (optional)
- Roughness Test (optional)
- Intergranular Corrosion Test (optional)
- Impact Test (optional)
- Grain Size Determinations (optional)
Note: All test and inspection results are documented in reports according to standard specifications.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
TSING SHAN STEEL INDUSTRIAL LIMITED
Location
NO.288,Youyi Road Xi Shan Dristrict , Wuxi, Jiangsu, China
Contact Person
Gao Ben