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0Cr21Al4 Resistance Alloy Fe-Cr-Al Alloy For Oxidation Resistance
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0Cr21Al4 Resistance Alloy Fe-Cr-Al Alloy For Oxidation Resistance
  • name

0Cr21Al4 Resistance Alloy Fe-Cr-Al Alloy For Oxidation Resistance

MOQ: 150kgs
Price: Negotiatable
Standard Packaging: carton, plywood pallet
Delivery Period: 2-30days
Payment Method: L/C,T/T,Western Union
Supply Capacity: 300 Ton per Month
Detail Information
Product Description
Detail Information
Place of Origin
China
Brand Name
NikTech
Certification
ISO 9001:2008
Model Number
0Cr21Al4
Composition:
Nickel, Chromium, Iron, Copper
Thermal Expansion Coefficient:
13.5×10-6/K
Corrosion Resistance:
High
Density:
8.4 G/cm3
Elongation At Break:
25-35%
Tensile Strength:
500-700 MPa
Max Operating Temperature:
1000-1200°C
Available Forms:
Wire, Strip, Sheet, Rod, Tube, Etc.
Applications:
Heating Elements, Electrical Resistors, Thermocouples, Etc.
Thermal Conductivity:
11.4 W/m·K
Material:
Alloy
Electrical Resistivity:
1.0-1.5 μΩ·m
Highlight:

0Cr21Al4 Resistance Alloy

,

Fe-Cr-Al Resistance Alloy

,

Oxidation Resistance nickel chromium heating wire

Product Description

0Cr21Al4 Resistance Wire – Durable Fe-Cr-Al Alloy for Oxidation Resistance & Energy-Saving Heating

 

Description

0Cr21Al4 resistance wire is an iron-chromium-aluminum (Fe-Cr-Al) alloy designed for high-temperature electric heating applications, offering robust oxidation resistance, mechanical durability, and cost-effective performance. With a composition of 20–23% chromium, 4.5–6.5% aluminum, and balanced iron, this alloy forms a protective alumina (Al₂O₃) layer at temperatures up to 1,300°C (2,372°F), ensuring reliable operation in oxidizing and mildly corrosive environments such as industrial furnaces, household appliances, and automotive heating systems. Its low carbon content (≤0.08%) and controlled silicon (≤1.0%) minimize embrittlement, making it suitable for cyclic thermal operations where longevity and energy efficiency are critical.

Certified to GB/T 1234 and DIN 17470 standards, 0Cr21Al4 wire achieves a tensile strength of 550–700 MPa and a surface load capacity of 2.0 W/cm², outperforming conventional nickel-chromium alloys in cost-effectiveness for mid-range thermal applications. The alloy’s high electrical resistivity (1.30 μΩ·m) and low thermal expansion coefficient (14.5×10⁻⁶/°C) ensure stable energy output and dimensional stability, reducing operational costs in air or inert gas environments.

 

Technical Specifications (Table)

Property Value Standard
Chemical Composition Cr: 20–23%, Al: 4.5–6.5%, Fe: Balance GB/T 1234, DIN 17470
  C: ≤0.08%, Si: ≤1.0%, Mn: ≤0.7% ASTM B603 (similar)
Mechanical Properties Tensile Strength: 550–700 MPa ASTM E8
  Elongation: ≥18%  
Physical Parameters Density: 7.2 g/cm³ ISO 6892
  Melting Point: 1,500°C  
  Electrical Resistivity: 1.30 μΩ·m  

 

Applications

  1. Industrial Furnaces: Heating elements for annealing, drying, and sintering processes.

  2. Consumer Appliances: Oven coils, toasters, and electric space heaters.

  3. Automotive: Seat warmers, defrosting systems, and exhaust gas heaters.

  4. Agriculture: Livestock barn heaters and greenhouse climate control systems.

  5. Energy Sector: Low-cost heating solutions for boilers and heat recovery units.

 

Q&A

Q1: What is the maximum continuous operating temperature for 0Cr21Al4 wire?
A: 1,200°C in continuous use and 1,300°C for short-term operations, ideal for applications requiring moderate thermal stress resistance.

Q2: Can this alloy withstand chlorine-rich atmospheres?
A: Limited resistance. For chlorine exposure above 800°C, consider higher-grade alloys like 0Cr27Al7Mo2.

Q3: Is pre-oxidation treatment necessary for optimal performance?
A: Yes. Heat-treat at 900–1,000°C for 1–2 hours to enhance the alumina layer and extend service life by 20–30%.

Tags: 

heat resistant wire,  

Resistance Wire,  

nickel chromium

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products
PRODUCTS DETAILS
Products

Monel Alloy

Inconel Alloy

Resistance Alloy

Expansion Alloys

Incoloy Alloy

Hastelloy Alloy

Cobalt Alloy

Soft Magnetic Alloy

Pure Nickel

Stainless Steel

Noble Metal

Nickel Based Welding Products

High Temperature Alloy

Others
0Cr21Al4 Resistance Alloy Fe-Cr-Al Alloy For Oxidation Resistance
  • name
0Cr21Al4 Resistance Alloy Fe-Cr-Al Alloy For Oxidation Resistance
MOQ: 150kgs
Price: Negotiatable
Standard Packaging: carton, plywood pallet
Delivery Period: 2-30days
Payment Method: L/C,T/T,Western Union
Supply Capacity: 300 Ton per Month
Detail Information
Product Description
Detail Information
Place of Origin
China
Brand Name
NikTech
Certification
ISO 9001:2008
Model Number
0Cr21Al4
Composition:
Nickel, Chromium, Iron, Copper
Thermal Expansion Coefficient:
13.5×10-6/K
Corrosion Resistance:
High
Density:
8.4 G/cm3
Elongation At Break:
25-35%
Tensile Strength:
500-700 MPa
Max Operating Temperature:
1000-1200°C
Available Forms:
Wire, Strip, Sheet, Rod, Tube, Etc.
Applications:
Heating Elements, Electrical Resistors, Thermocouples, Etc.
Thermal Conductivity:
11.4 W/m·K
Material:
Alloy
Electrical Resistivity:
1.0-1.5 μΩ·m
Minimum Order Quantity:
150kgs
Price:
Negotiatable
Packaging Details:
carton, plywood pallet
Delivery Time:
2-30days
Payment Terms:
L/C,T/T,Western Union
Supply Ability:
300 Ton per Month
Highlight

0Cr21Al4 Resistance Alloy

,

Fe-Cr-Al Resistance Alloy

,

Oxidation Resistance nickel chromium heating wire

Product Description

0Cr21Al4 Resistance Wire – Durable Fe-Cr-Al Alloy for Oxidation Resistance & Energy-Saving Heating

 

Description

0Cr21Al4 resistance wire is an iron-chromium-aluminum (Fe-Cr-Al) alloy designed for high-temperature electric heating applications, offering robust oxidation resistance, mechanical durability, and cost-effective performance. With a composition of 20–23% chromium, 4.5–6.5% aluminum, and balanced iron, this alloy forms a protective alumina (Al₂O₃) layer at temperatures up to 1,300°C (2,372°F), ensuring reliable operation in oxidizing and mildly corrosive environments such as industrial furnaces, household appliances, and automotive heating systems. Its low carbon content (≤0.08%) and controlled silicon (≤1.0%) minimize embrittlement, making it suitable for cyclic thermal operations where longevity and energy efficiency are critical.

Certified to GB/T 1234 and DIN 17470 standards, 0Cr21Al4 wire achieves a tensile strength of 550–700 MPa and a surface load capacity of 2.0 W/cm², outperforming conventional nickel-chromium alloys in cost-effectiveness for mid-range thermal applications. The alloy’s high electrical resistivity (1.30 μΩ·m) and low thermal expansion coefficient (14.5×10⁻⁶/°C) ensure stable energy output and dimensional stability, reducing operational costs in air or inert gas environments.

 

Technical Specifications (Table)

Property Value Standard
Chemical Composition Cr: 20–23%, Al: 4.5–6.5%, Fe: Balance GB/T 1234, DIN 17470
  C: ≤0.08%, Si: ≤1.0%, Mn: ≤0.7% ASTM B603 (similar)
Mechanical Properties Tensile Strength: 550–700 MPa ASTM E8
  Elongation: ≥18%  
Physical Parameters Density: 7.2 g/cm³ ISO 6892
  Melting Point: 1,500°C  
  Electrical Resistivity: 1.30 μΩ·m  

 

Applications

  1. Industrial Furnaces: Heating elements for annealing, drying, and sintering processes.

  2. Consumer Appliances: Oven coils, toasters, and electric space heaters.

  3. Automotive: Seat warmers, defrosting systems, and exhaust gas heaters.

  4. Agriculture: Livestock barn heaters and greenhouse climate control systems.

  5. Energy Sector: Low-cost heating solutions for boilers and heat recovery units.

 

Q&A

Q1: What is the maximum continuous operating temperature for 0Cr21Al4 wire?
A: 1,200°C in continuous use and 1,300°C for short-term operations, ideal for applications requiring moderate thermal stress resistance.

Q2: Can this alloy withstand chlorine-rich atmospheres?
A: Limited resistance. For chlorine exposure above 800°C, consider higher-grade alloys like 0Cr27Al7Mo2.

Q3: Is pre-oxidation treatment necessary for optimal performance?
A: Yes. Heat-treat at 900–1,000°C for 1–2 hours to enhance the alumina layer and extend service life by 20–30%.

Tags: 

heat resistant wire,

Resistance Wire,

nickel chromium

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