Golden Oxidized Fecral Heating Wire A1 TK1 3mm~8mm Heating Resistance Wire for High Watt Tubular Coil Heater

• Customization: Available
• Surface Treatment: -
• Shape: round wire, rod, flat wire etc.
• Color: bright
• Material: Fecral Alloy
• state: bright annealed
• Surface: Bright, Golden, acid white
• Diameter: 1.0-10.0mm
• Resistivity: 1.45
• HS: 7223000
• sample: accepted small order
• package: wooden case
• Transport Package: Spool or Reel, Carton, Wooden Case
• Specification: RoHS
• Trademark: TANKII
• Origin: China
• HS Code: 72230000
• Production Capacity: 5000 Tons/Year

Product Description

Golden Oxidized Fecral Heating Wire Ocr21al6nb 3mm~8mm Heating Resistance Wire for High Watt Tubular Coil Heater
High-temperature Heating Alloy    TK1

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 very good; operating temperature can reach 1400 ºC.
Main specifications and uses:

Conventional Product specifications: 0.1 ~ 10 mm

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

MAIN CHEMICAL ELEMENTS AND PROPERTIES
 

Properties \ Grade

TK1

Cr

Al

Re

Fe

22.0-26.0

5.0-7.0

Suitable

Balance

Max Continuous Service Temperature(ºC)

Diameter 1.0-3.0

Diameter large than 3.0,

1225-1350ºC

1400ºC

Resisivity 20ºC (ohm*mm2/m)

1.45

Density(g/cm^3)

7.1

Approximate Melting Point( ºC)

1500

Elongation (%)

16-33

Repeatedly Bend Frequency(F/R) 20ºC

7-12

Continuous Service Time  1350 ºC

More than 80 hours

Micrographic Structure

Ferrite

Furnace

Dry Air

Humid Air

hydrogen-argon

Argon

Decomposition

atmosphere

gas

ammonia gas

Temp(ºC)

1400

1200

1400

950

1200

0Cr27Al7Mo2 is a iron-chromium-aluminium alloy (FeCrAl alloy) characterized by high resistance, low coefficient of electric resistance, higher operating temperature, good corrosion resistance under high temperature.It is suitable for use at temperatures up to 1400°C.

Typical applications for 0Cr27Al7Mo2 are used in heating element of the single crystal furnace, sintering furnace, ceramic calcining furnace and heat treatment furnace and diffusion furnace when the temperature is more than 1200°C.
 

Normal composition%

C	P	S	Mn	Si	Cr	Ni	Al	Fe	Mo
Max
0.05	0.025	0.025	0.20	Max 0.40	26.5~27.8	Max 0.60	5.0~7.0	Bal.	1.8-2.2

Typical Mechanical properties(1.0mm)

Yield strength	Tensile Strength	Elongation
Mpa	Mpa	%
460	700	20

Typical Physical properties

Density (g/cm3)	7.10
Electrical resistivity at 20ºC(ohmmm2/m)	1.53
Conductivity coefficient at 20ºC (WmK)	13

 

 

Coefficient of thermal expansion
Temperature	Coefficient of Thermal Expansion x10-6/ºC
20 ºC- 1000ºC	16

 

Specific heat capacity
Temperature	20ºC
J/gK	0.49

 

Melting point (ºC)	1520
Max continuous operating temperature in air (ºC)	1400
Magnetic properties	non-magnetic

 

Temperature Factor of Electrical Resistivity

20ºC	100ºC	200ºC	300ºC	400ºC	500ºC	600ºC	700ºC	800ºC	900ºC	1000ºC	1100ºC	1200ºC
1	0.997	0.996	0.994	0.991	0.990	0.990	0.990	0.990	0.990	0.990	0.990	0.990

Main grades and properties

Grades Properties		1Cr13Al4	0Cr25Al5	0Cr21Al6	0Cr23Al5	0Cr21Al4	0Cr21Al6Nb	0Cr27Al7Mo2
Chemical composition %	Cr	12.0-15.0	23.0-26.0	19.0-22.0	22.5-24.5	18.0-21.0	21.0-23.0	26.5-27.8
	Al	4.0-6.0	4.5-6.5	5.0-7.0	4.2-5.0	3.0-4.2	5.0-7.0	6.0-7.0
	Fe	Balance	Balance	Balance	Balance	Balance	Balance	Balance
	Other						Nb 0.5	Mo1.8-2.2
Highest service temperature °C		950	1250	1250	1250	1100	1350	1400
ResistivityμΩ.M,20°C		1.25	1.42	1.42	1.35	1.23	1.45	1.53
Density (g/cm3 )		7.4	7.10	7.16	7.25	7.35	7.10	7.10
Thermal conductivity KJ/m.H.°C		52.7	46.1	63.2	60.2	46.9	46.1	45.2
Coefficient of linear extensibility Α×10-6/°C		15.4	16.0	14.7	15.0	13.5	16.0	16.0
Melting point °C		1450	1500	1500	1500	1500	1510	1520
Tensile Mpa		580-680	630-780	630-780	630-780	600-700	650-800	680-830
Elongation %		>16	>12	>12	>12	>12	>12	>10
Reduction %		65-75	60-75	65-75	65-75	65-75	65-75	65-75
Hardness H.B.		200-260	200-260	200-260	200-260	200-260	200-260	200-260
Microstructure		Ferrite	Ferrite	Ferrite	Ferrite	Ferrite	Ferrite	Ferrite