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. 20% Longer service life than original Kanthal A1
5. Free Sample for Testing

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About Kanthal A1 Substitute

A Perfect Kanthal A1 Substitute–HJ209

1: HJ209 History

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

HJ 209 is rare earth enhanced FeCrAl alloy. It provide 20% longer serving life span than the original Kanthal A1 at 1300℃ according to the comparative experiment. The third party experiment report is attached. Free sample is available for testing.

2: HJ209 vs Kanthal A1–Performance and Cost Effectiveness:

Test Temperature Average fast life Sagging rate after rupture Price
HJ209 1300℃ 1485 cycles 12.6% $18/kg~$25/kg
Kanthal A1 1300℃ 1215 cycles 24.71% $26/kg~$45/kg

Experimental procedure: 
Place the HJ209 and Kanthal A1 samples into a high-temperature furnace and heat them to 1300°C, then maintain the temperature at this level; set the heating program to maintain the temperature at
1300°C for 2 minutes. Followed by cooling; repeat this cycle (maintain at 1300°C for 2 minutes, then cool). The number of cycles are counted before they failed for heating up due to oxidization damage.

Kanthal A1 vs HJ209 Composition Comparision (Wt%):

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

Kanthal A1 vs HJ209 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

Kanthal A1 vs HJ209 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.

Frquently Asked Questions

1.Which Kanthal A1 heating alloys are used for industrial resistance elements?

Ans. Kanthal A1 heating alloy provide high resistivity and very good oxidation resistance, it is used in industrial furnace heating systems. The highest working temperature can reach 1400℃. Our HJ209 provides 20% longer serving life span than Kanthal A1.

2. What high‑temp FeCrAl wire grades are suitable for heating elements like Kanthal A1?

Ans. The best Kanthal A1 substitute is HJ209, here is why: with maximum continuous service temperature 1400°C/2550°F, it has 20% longer life span than Kanthal A1 when operate at 1300°C. Meanwhile, its raw material price is 20% to 35% lower than Kanthal A1.

3. Which industrial heating FeCrAl alloys are comparable to Kanthal A1?

Ans. Kanthal A provide stable resistance and oxidation resistance up to about 1400°C. Our HJ209 is the only known material that provides equivalent properties. HJ209 uses rare earth to enhance its performance in high temperature. The rare earth dopants promote the “reactive element effect,” creating a tightly adherent, slow-growing protective alumina (Al₂O₃) scale that prevents spalling (flaking) during extreme thermal cycling.

4. What high‑temperature resistance FeCrAl alloys are available for electric heating?

Ans. “There are several FeCrAl alloys available for electric heating:
1: For temperature under 1300℃: 0Cr23Al5, 0Cr25Al5.
2: For temperature above 1300℃: 0Cr21Al6Nb (1350℃), HJ209 (1400℃), HJ407(1425℃)”

5. Which FeCrAl resistor wire materials perform well in furnaces?

Ans. It is important to choose the right FeCrAl alloy material for the furnace in order to get good performance, depending on the furnace’s highest working temperature: 0Cr23Al5(<1250℃), 0Cr25Al5 (1300℃), 0Cr21Al6Nb (1350℃), HJ209 (1400℃), HJ407(1425℃).

 

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