Kanthal A1 Substitute

Key Features:

1. Low tendency to ageing and low resistance change
2. Excellent surface oxidization properties
3. Excellent for high temperature heating, up to 1400°C
4. Longer service life
5. Free Sample for Testing

About Kanthal A1 Substitute

A Perfect Kanthal A1 Wire Substitute–HJ209 Wire

1: HJ209 Wire’s History

Sandvik once established Kanthal Wire production line in China in 1980s and abandoned it later. Basing on this production line and over 30 years’ research, we developed HJ209 wire as substitute of Kanthal A1 Wire. (We also produce HJ407 as Kanthal APM substitute)

2: HJ209 wire’s Cost Effectiveness:

The HJ209 wire’s max working temperature is 1400℃, but has much better mechanical properties in high temperature(detailed properties data is below). Its price is only about $20/kg~$30/kg (Final price depends on product size and ordering quantity). We can provide free sample for testing.

Our customers have been using HJ209 Wire as Kanthal A1 Wire substitute for over 8 years. The Long-term application practice proved that HJ209 Wire is as good as Kanthal A1 or even better.  HJ209’s purity is further improved and the oxidation resistance is further optimized. Thanks to the special rare earth element combination and unique metallurgical manufacturing process, this material’s performance has been recognized in field of high temperature ceramic sintering, diffusion furnace, high power density and high temperature industrial furnaces.

The physical and mechanical properties comparison between HJ209 and Kanthal A1 is below.

Fast Life Test Comparison:

Test Material HJ209 Kanthal A1
Test Temp. 1400℃ 1350℃
Average fast life (Hours) 72 56
Sagging rate after rupture (%) 12.6 24.71

Test Method:

HJ209 Wire: sample diameter: 0.8mm, test temperature: 1400℃, 2 minutes intermittent power supply, 6 samples tested.

Kanthal A1 Wire: sample diameter: 0.8mm, test temperature: 1350℃, 2 minutes intermittent power supply, 6 samples tested.

Test Result Explanation:

1: Serving life: HJ209 wire’s serving life is 16 hours longer than Kanthal A1 wire even when the test temperature is higher.

2: Strength at High Temperature: HJ209’s sagging rate after rupture is only half of Kanthal A1 wire’s. It means HJ209 wire’s strength is higher than Kanthal A1 wire at high temperature.

 

Composition Comparision (Wt%):

 HJ209 wire C Si Cr Al Fe
Min – – 20 5.6 Bal
Max 0.04 0.4 23 5.9 Bal 
Kanthal A1 wire C Si Mn Cr Al Fe
Nominal 5.8 Bal.
Min — — — 20.5 —
Max 0.08 0.7 0.4 23.5 —

 Mechanical Properties Comparision:

Max. Operation Temperature Annealed tensile strength 

(N/mm2)

 Elongation

(20℃)

  Resistivity

(20℃)
HJ209 1400℃ 650-800 >16% 1.45×10-6 Ω.m
Kanthal A1 1400℃ 680-760 20% 1.45×10-6 Ω.m

Resistance Temperature Coefficient (Ct) comparison:

Temp. °C 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300
HJ209 1.00 1.00 1.00 1.00 1.01 1.02 1.02 1.03 1.03 1.03 1.03 1.04 1.04
Kanthal A1 1.00 1.00 1.00 1.00 1.01 1.02 1.02 1.03 1.03 1.04 1.04 1.04 1.04

HJ209’s Available Specifications:
Wire: diameter 0.05mm to 8.5mm
Bars: diameter 3mm to 30mm
Flat wire size range: thickness 0.1-0.4mm width 0.5-4.5mm
Strip size range: thickness 0.1-2.5mm width 5-40mm
Coils: can be customized according to customer’s special requirements.

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