321 321H Titanium Stabilized Stainless Steel Sheet Plate with High Temperature Resistance and 0.5mm-60mm Thickness

Τόπος καταγωγής Shanxi, Κίνα
Μάρκα Hongtu
Πιστοποίηση ISO 9001:2015, SGS, ASTM A240/A240M, EN 10028-7
Αριθμό μοντέλου 321 / 321H
Ποσότητα παραγγελίας min 500 κιλά
Τιμή USD 3.5-5.5 / kg
Συσκευασία λεπτομέρειες Προστατευτική μεμβράνη PVC, αντισκωριακό χαρτί, ξύλινη παλέτα εξαγωγικής ποιότητας με χαλύβδινο λουρ
Χρόνος παράδοσης 3-7 εργάσιμες ημέρες για το απόθεμα, 12-20 ημέρες για την παραγωγή
Όροι πληρωμής T/T, L/C, PayPal, Western Union
Δυνατότητα προσφοράς 2000 τόνοι το μήνα
Λεπτομέρειες
Κράμα 321 (UNS S32100) / 321H (UNS S32109) Ιδιοσυγκρασία Επεξεργασμένα, παγωμένα, ζεστά
Πάχος 0,5mm - 60mm Πλάτος 1000mm, 1219mm, 1250mm, 1500mm, 2000mm
Μήκος 2000mm, 2438mm, 3000mm, 6000mm ή Προσαρμοσμένο Πρότυπο ASTM A240, EN 10028-7, GB/T 4237, JIS G4304
Φινίρισμα επιφάνειας No.1, 2B, BA, No.4, 8K Αντοχή σε εφελκυσμό ≥ 515 MPa
Δύναμη διαρροής ≥ 205 MPa Επιμήκυνση ≥ 40%
Περιεκτικότητα σε άνθρακα ≤ 0,08% (321), 0,04-0,10% (321 Η) Εφαρμογή Εναλλάκτες θερμότητας, εξαρτήματα φούρνων, λέβητες, αρμοί διαστολής, αεροδιαστημική εξάτμιση
Επισημαίνω

321 321H Titanium Stabilized SS Sheet

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High Temperature Stainless Steel Plate

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Heat Exchanger 321H Alloy Sheet

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Περιγραφή προϊόντων
321 321H Titanium Stabilized Stainless Steel Sheet Plate 0.5mm-60mm Thickness for High Temperature Heat Exchanger
321 / 321H Titanium Stabilized Stainless Steel Sheet Plate

The 321 and 321H stainless steel sheets are titanium-stabilized austenitic chromium-nickel alloys engineered for exceptional performance in high-temperature environments. The deliberate addition of titanium (minimum 5 * C content) effectively prevents chromium carbide precipitation at grain boundaries, ensuring immunity to intergranular corrosion even after extended exposure to the critical 425-900°C sensitization range. Grade 321H, with controlled higher carbon content (0.04-0.10%), provides superior elevated temperature strength for structural applications.

Key Features
  • Titanium Stabilization: Ti content ≥ 5 * Carbon eliminates sensitization and intergranular attack after welding or thermal cycling
  • High Temperature Resistance: Excellent scaling resistance up to 900°C in continuous service, 816°C in intermittent service
  • Superior Creep Strength (321H): Controlled higher carbon provides enhanced creep rupture strength at elevated temperatures
  • Excellent Weldability: No post-weld annealing required thanks to titanium stabilization
  • Good General Corrosion Resistance: Comparable to 304/304L in most environments with added high-temperature capability
  • Thermal Fatigue Resistance: Outstanding performance under cyclic heating and cooling conditions
Chemical Composition (Weight %)
Element C Mn Si P S Cr Ni Ti N
321 ≤0.08 ≤2.00 ≤0.75 ≤0.045 ≤0.030 17.0-19.0 9.0-12.0 5*(C+N)-0.70 ≤0.10
321H 0.04-0.10 ≤2.00 ≤0.75 ≤0.045 ≤0.030 17.0-19.0 9.0-12.0 4*(C+N)-0.70 ≤0.10
Mechanical Properties (Annealed, Room Temperature)
Property 321 321H
Tensile Strength ≥ 515 MPa ≥ 515 MPa
Yield Strength (0.2% offset) ≥ 205 MPa ≥ 205 MPa
Elongation in 50mm ≥ 40% ≥ 40%
Hardness (Rockwell B) ≤ 95 HRB ≤ 95 HRB
Max Service Temp (Continuous) 900°C 900°C
Available Dimensions
Parameter Range
Thickness 0.5mm - 60mm
Width 1000mm - 2000mm
Length 2000mm - 6000mm or Custom
Surface Finish No.1, 2B, BA, No.4, 8K Mirror
Applications
  • Shell and tube heat exchanger tubesheets and baffles
  • Furnace muffles, retorts, and radiant tubes
  • Boiler superheater and reheater tubing
  • Expansion joints and bellows in high-temperature piping
  • Aircraft exhaust stacks and collector rings
  • Petrochemical refinery heater tubes
  • Thermal oxidizer components
Our Advantages
  • Verified Titanium Content: Spectrographic analysis confirms Ti ≥ 5 * C in every batch
  • Intergranular Corrosion Tested: ASTM A262 Practice E (Strauss test) certification available
  • High Temperature Test Reports: Creep rupture data and elevated temperature tensile properties provided
  • Full Traceability: MTC EN 10204 3.1 with complete chemical and mechanical data per shipment
  • Mill Source Direct: Sourced from TISCO, Baosteel, and JISCO for consistent premium quality
Contact us today for a competitive quotation, technical datasheets, and sample availability on 321/321H stainless steel sheets.