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Ohmalloy Material Co.,Ltd

  • China,Shanghai ,Shanghai
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China FeCrAl Alloy Flat Heating Wire | Cr23Al5 (Alchrome DK) | 1400°C Max | Oxidation
China FeCrAl Alloy Flat Heating Wire | Cr23Al5 (Alchrome DK) | 1400°C Max | Oxidation

  1. China FeCrAl Alloy Flat Heating Wire | Cr23Al5 (Alchrome DK) | 1400°C Max | Oxidation

FeCrAl Alloy Flat Heating Wire | Cr23Al5 (Alchrome DK) | 1400°C Max | Oxidation

  1. MOQ: 50KG
  2. Price:
  3. Get Latest Price
Payment Terms L/C,T/T,,MoneyGram
Supply Ability 30000 KG per Month
Delivery Time 5-15 working days after payment confirmed
Packaging Details plywood pallet or plywood case
Name FeCrAl OCr23Al5Ti resistance alloy wire
Chemical Composition OCr23Al5Ti
Size 0.25-8mm
Resistivity 1.35±0.05μΩ.m
Type oxidation
Highest temperature 1250℃
Brand Name OHMALLOY/OEM
Model Number OCr23Al5Ti
Certification ISO9001:2015
Place of Origin China

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  1. Product Details
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Product Specification

Payment Terms L/C,T/T,,MoneyGram Supply Ability 30000 KG per Month
Delivery Time 5-15 working days after payment confirmed Packaging Details plywood pallet or plywood case
Name FeCrAl OCr23Al5Ti resistance alloy wire Chemical Composition OCr23Al5Ti
Size 0.25-8mm Resistivity 1.35±0.05μΩ.m
Type oxidation Highest temperature 1250℃
Brand Name OHMALLOY/OEM Model Number OCr23Al5Ti
Certification ISO9001:2015 Place of Origin China
High Light FeCrAl alloy heating wireCr23Al5 oxidation resistant wireASTM B603 FeCrAl wire

FeCrAl Alloy Flat Heating Wire | Cr23Al5 (Alchrome DK) | 1400°C Max | Oxidation Resistant | ASTM B603

FeCrAl Flat Heating Wire (Alchrome DK Grade Cr23Al5) | UNS K91240 | 1400°C Continuous | 1.40 μΩ·m Resistivity | ASTM B603 Applications: Industrial Kilns • Glass Annealing Lehers • Semiconductor Diffusion Furnaces • Vacuum Heat Treatment

MATERIAL TECHNOLOGY

Alloy Composition (ASTM B603):

  • Cr 22.0-24.0% | Al 4.8-5.5% | Fe bal. | Y2O3 ≤0.5% (rare earth stabilized)
  • Density: 7.2 g/cm³ | Melting Point: 1500°C Key Properties:
  • Resistivity: 1.40 μΩ·m at 20°C | TCR: +10 ppm/°C
  • Oxidation Limit: <0.8 mg/cm² at 1300°C/100hr
  • Emissivity: 0.90 at 1200°C

CERTIFIED PERFORMANCE

EXTREME TEMPERATURE RESILIENCE

  • Max Service Temp: 1400°C (air) | 1500°C (inert/vacuum)
  • Creep Rupture: 100+ hr at 1200°C/20MPa (ISO 204)
  • Thermal Cycling: 15,000 cycles (RT↔1300°C)

ELECTRO-THERMAL EFFICIENCY

  • Surface Load Capacity: 30 W/cm² (static air)
  • Hot-Spot Uniformity: ±7°C @25kW/m²
  • Resistance Stability: ΔR/R <2% after 20,000hr at 1250°C

GEOMETRY & DIMENSIONS

Flat Wire Configuration:

  • Thickness: 0.8–3.0 mm (±0.02mm)
  • Width: 2.0–25.0 mm (±0.1mm)
  • Length: Custom coils to 500m Cross-Section Advantages:
  • 40% higher surface area vs round wire
  • Edge radius: <0.1× thickness (prevents arcing)

SURFACE ENGINEERING

  • Pre-Oxidized Finish: Al2O3 layer: 3-5 μm | Ra 0.5-1.0 μm Benefits: Instant oxidation protection at startup
  • Bright Annealed: Ra ≤0.4 μm | For vacuum applications
  • Spiral-Ready: Pre-annealed for coil winding (min radius = 6× width)

INDUSTRIAL VALIDATION

CERAMIC INDUSTRY:

  • Tunnel kiln elements: 3-year life at 1380°C (ISO 5018)
  • 50% less sag vs NiCr80/20 at same temperature SEMICONDUCTOR:
  • Diffusion furnaces: ±1.5°C uniformity at 1150°C (SEMI F47)
  • Outgassing: TML<0.05% at 1200°C (ASTM E595) HEAT TREATMENT:
  • Vacuum furnaces: 0% scaling at 10^(-6) Torr
  • Carburizing resistance: 5× better than 310S

Packing detail
Spool, coil, wooden case(as per client's requiryment)

Properties/Grade 0Cr23Al5
Main Chemical composition(%) Cr 22.5-24.5
Al 4.2-5.0
Fe Balance
Re opportune
   
Max. continuous service temp. of element 1250
Resistivity at 20oC (μ Ω @ m) 1.35+-0.07
Density (g/cm3) 7.25
Thermal conductivity(KJ/m@ h@ oC) 60.2
Coefficient of lines expansion(α × 10-6/oC) 15
Melting point (approx. )( oC) 1500
Elongation at rupture (%) ≥ 12
Micrographic structure Ferrite
Magnetic properties magnetic
 

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Company Details

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 from Quality China Factory
  • Business Type:

    Manufacturer,Distributor/Wholesaler,Exporter,Trading Company

  • Year Established:

    2008

  • Total Annual:

    4000000-6000000

  • Employee Number:

    20~50

  • Ecer Certification:

    Verified Supplier

Ohmalloy Material Co.,Ltd is a high-tech enterprise which specialized in making all kinds of alloy such as high resistance alloy, low-resistance copper nickel alloy, precision alloy, FeCrAl alloy and thermocouple Alloy. Ohmalloy Material Co.,Ltd have a full production line from melting, surface... Ohmalloy Material Co.,Ltd is a high-tech enterprise which specialized in making all kinds of alloy such as high resistance alloy, low-resistance copper nickel alloy, precision alloy, FeCrAl alloy and thermocouple Alloy. Ohmalloy Material Co.,Ltd have a full production line from melting, surface...

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  • Ohmalloy Material Co.,Ltd
  • Room 311, No.1211, Mudanjiang Road, Baoshan district, Shanghai
  • https://www.fecralalloy.com/

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