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TK1 large-sized cold-drawn wire products can be used for high-temperature resistance furnace. Practice has proved that: the product process is stable, integrated performance is good. Has good high temperature oxidation resistance and longer service life; excellent winding properties at room temperature processing, ease of processing molding; little rebound resilience and so on. Processing performance is better than 0Cr27Al7Mo2, high temperature performance is better than 0Cr21Al6Nb; operating temperature can reach 1400 ℃.

Main specifications and uses:

Conventional Product specifications:

0.5 ~ 10 mm


Mainly used in powder metallurgy furnace, diffusion furnace, radiant tube heater and all kinds of high-temperature furnace heating body.


Chemical Content %

Content Cr% Al% Re% Fe%
Grade 25.0 6.0 Suitable Bal

Mechanical Properties

Property Name Value
Max Continuous Service Temperature(ºC) Diameter 1.0-3.0 1225-1350℃
Max Continuous Service Temperature(ºC) Diameter>3.0 1400℃
Resisitivity 20ºC (Ωmm2/m) 1.45
Density(g/cm3) 7.1
Approximate Melting Point( ºC) 1500
Elongation (%) 16-33
Repeatedly Bend Frequency(F/R) 20℃ 7-12
Continuous Service Time >60/1350
Micrographic Structure Ferrite

The relationship between the maximum operating temperature and the furnace atmosphere

Furnace atmosphere Dry Air Humid Wire Hydrogen-argon gas Argon Decomposition ammonia gas
Temp (℃) 1400 1200 1400 950 1200

User Manual

  1. Rated Voltage: 220V/380V
  2. The installation process to avoid knocking, to avoid the damp, hand-held stove wire, they should wear gloves. Wire should be installed after the furnace has remained flat, and prevent surface scratches, dirt, corrosion, or improper installation, by affecting the life of
  3. In the rated voltage to use. In strong reducing atmosphere, acid atmosphere, an atmosphere of high humidity will affect the use of life;
  4. Temperature before use should be in dry non-corrosive atmosphere, about 1000 ℃ spend a few hours, so that furnace wire protective film formed on the surface after normal use, so that can guarantee the normal life of furnace wire;
  5. Furnace installation should ensure that the insulated wire good power to avoid touching furnace after the wire, guard against electric shock or burns.