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321 321H Titanium Stabilized Stainless Steel Sheet Plate with High Temperature Resistance and 0.5mm-60mm Thickness
321 321H Titanium Stabilized Stainless Steel Sheet Plate with High Temperature Resistance and 0.5mm-60mm Thickness
Specifications
Brand Name :
Hongtu
Model Number :
321 / 321H
Place of Origin :
Shanxi, China
Certification :
ISO 9001:2015, SGS, ASTM A240/A240M, EN 10028-7
MOQ :
500 kg
Price :
USD 3.5-5.5 / kg
Payment Terms :
T/T, L/C, PayPal, Western Union
Supply Ability :
2000 Tons per Month
Delivery Time :
3-7 working days for stock, 12-20 days for production
Packaging Details :
PVC protective film, anti-rust paper interleaved, export-grade wooden pallet with steel strapping
Alloy :
321 (UNS S32100) / 321H (UNS S32109)
Temper :
Annealed, Cold Rolled, Hot Rolled
Thickness :
0.5mm - 60mm
Width :
1000mm, 1219mm, 1250mm, 1500mm, 2000mm
Length :
2000mm, 2438mm, 3000mm, 6000mm or Customized
Standard :
ASTM A240, EN 10028-7, GB/T 4237, JIS G4304
Surface Finish :
No.1, 2B, BA, No.4, 8K
Tensile Strength :
≥ 515 MPa
Yield Strength :
≥ 205 MPa
Elongation :
≥ 40%
Carbon Content :
≤ 0.08% (321), 0.04-0.10% (321H)
Application :
Heat Exchangers, Furnace Parts, Boilers, Expansion Joints, Aerospace Exhaust
Description
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.
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321 321H Titanium Stabilized Stainless Steel Sheet Plate with High Temperature Resistance and 0.5mm-60mm Thickness

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Product Detail
Brand Name :
Hongtu
Model Number :
321 / 321H
Place of Origin :
Shanxi, China
Certification :
ISO 9001:2015, SGS, ASTM A240/A240M, EN 10028-7
MOQ :
500 kg
Price :
USD 3.5-5.5 / kg
Contact Supplier
321 321H Titanium Stabilized Stainless Steel Sheet Plate with High Temperature Resistance and 0.5mm-60mm Thickness

Jiangsu Hongtu Metal Technology Co.,Limited

Verified Supplier
4 Years
jiangsu, wuxi
Since 2006
Business Type :
Manufacturer, Exporter, Seller
Main Products :
Sheets Stainless Steel, Stainless Steel Coils, Aluminum Sheet
Total Annual :
15000000-20000000
Employee Number :
400~500
Certification Level :
Verified Supplier
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