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High nickel Steel
The high-nickel steel contains more nickel than stainless steel and features superior heat and corrosion resistance. Sino-Japan Electric Heater Co., Ltd., selects four types of high-nickel steel and makes sheath heaters according to user needs.

Available diameter
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Details of contents
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Proper environment
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Limit service temperature
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ø6.60
ø8.00
ø10.0
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Ni 18~22
Cr 18~22
Ti 0.6MAX
Mn 1.0MAX
Mo ----
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Air heating
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800°C or less
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Features
- Used very widely for burn-in-air heating in Japan.
- Has relatively high resistance against moist environments. Recommended for users who do not need very high corrosion resistance.
Application examples
Fish roasters, microwave oven ranges, hot plates, can vending machine, and heat accumulating heaters
Precautions
- These heaters are prone to creat scale on pipe surfaces, depending on the use environments.
- High-nickel steel is hard material, and the user should pay attention to the bending radius.
The bending radius standards also depend on the bending shapes such as U, L, etc.

Available diameter
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Details of contents
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Proper environment
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Limit service temperature
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ø6.6
ø8.0
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Ni 19.8
Cr 21.0
Si 1.0
Mn 0.3
Mo 2.0
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Air heating Heating in water
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800°C or less
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Features
- Contains the same quantity of nickel and chromium as Incoloy 840.
- Contains 2% molybdenum and features superior corrosion resistance.
- Recommended for applications at high temperature in salt-containing environments.
- Can be acid-washed or electrolytic-polished as surface processing when used for in-water heating only.
Application examples
Fish roasters, small calorifiers, hot plates, cup vending machines and tea dispensers
Precautions
- NAR-AH-1 is hard material, and the user should pay attention to the bending radius.
The bending radius standards also depend on the bending shapes such as U, L, etc.

Available diameter
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Details of contents
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Proper environment
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Limit service temperature
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ø6.6
ø8.0
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Ni 30.0~35.0
Cr 19.0~23.0
Ti 0.15~0.6
Mn 1.5Max
Mo ----
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Air heating Heating in water
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800°C or less
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Features
- Features superior corrosion resistance and wide applications in various conditions.
- Can be used free from troubles if high corrosion resistance is required. Recommended material.
- Can be acid-washed or electrolytic-polished as surface processing when used for in-water heating only.
Application examples
Fish roasters, microwave oven ranges, small calorifiers, dishwashers, drum washing machines, cup vending machines, heat accumulating heaters and defrost heaters.
Precautions
- Incoloy 800 is hard material, and the user should pay attention to the bending radius.
The bending radius standards also depend on the bending shapes such as U, L, etc.
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