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654smo Seamless Tubing Super Austenitic Stainless Steel Pipe with High Molybdenum Content and Excellent Pitting Corrosion Resistance

Πιστοποίηση	ISO, AISI, ASTM
Ποσότητα παραγγελίας min	50 κιλά
Τιμή	US $5.15-12.85 / kg

Λεπτομέρειες

Μοντέλο ΑΡΙΘ.	654SMO	Σχήμα	Επίπεδα
Τεχνική	Θερμής έλασης	Επεξεργασία Επιφανειών	Ευφυής
Προσδιορισμός	OD 6-630mm	Παραγωγική ικανότητα	50000 KGS
Υλικό	S32652 UNS 654SMO 1.4652 X1CrNiMOCUN24-22-8	Περιεκτικότητα σε άνθρακα	≤0,02
Περιεκτικότητα σε πυρίτιο	≤0.05	Περιεκτικότητα σε μαγγάνιο	2.00-4.00
Περιεχόμενο νικελίου	21.0-23.0	περιεκτικότητα σε χρώμιο	23-25
Περιεκτικότητα σε Μολυβδαίνιο	7.0-8.0	Περιεκτικότητα σε άζωτο	0,45-0,55
Περιεκτικότητα σε χαλκό	0.3-0.6
Επισημαίνω	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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Περιγραφή προϊόντων

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

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	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 and high yield strength

Good processability and workability

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

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 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

100% PMI, Spectro Chemical Analysis Test for Raw Material

100% Dimension & Visual Examination

Mechanical Properties Test including Tension Test, Flaring Test (Seamless), Flange Test (Welded), 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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