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Magnetic Alkrothal 720 FeCrAl Alloy For Brake Resistor
Magnetic Alkrothal 720 FeCrAl Alloy For Brake Resistor
Specifications
Brand Name :
TANKII
Model Number :
Alkrothal 720
Certification :
ISO9001
Place of Origin :
Shanghai
MOQ :
30kg
Price :
negotiable
Payment Terms :
L/C, T/T, Western Union
Supply Ability :
300+ton+month
Delivery Time :
8-20 days
Packaging Details :
spool,coil, carton,wooden pallet or box
material :
FeCrAl
resistivity :
1.25
density :
7.4
elongation :
＞16
Description

Alkrothal 720 No.1 JR FeCrAl Alloy for brake resistor

Alkrothal 720 is a ferritic iron-chromium-aluminium alloy (FeCrAl alloy) for use at temperatures up to 1000°C (1830°F).

Typical applications for Alkrothal 720 are in rheostats, braking resistors, etc. It is also used as electrical heating elements in industrial applications.



Nominal Analysis

Cr Al Fe
12.0~15.0 4.0~6.0 Balance



Mechanical Properties

Max Continuous Service Temperature:
Resisivity 20ºC:
Density:
Thermal Conductivity:
Coefficient of Thermal Expansion:
Melting Point:
Elongation:
Micrographic Structure:
Magnetic Property:		 950ºC
1.25ohm mm2/m
7.40g/cm3
52.7 KJ/m·h·ºC
15.4×10-6/ºC (20ºC~1000ºC)
1450ºC
Min 16%
Ferrite
magnetic


Size: Thickness 0.01-7mm, width 0.5-1000mm

Surface: BA, 2B

Hardness: Soft, Half hard, hard

Has been used extensively as big power brake resisor and furnace heating elements.

Has less hot strength than Tophet alloys but much higher melting point.

Shanghai TANKII ALLOY MATERIAL Co., Ltd.

FECRAL AND ALCHROME ALLOY PRODUCER IN China, MOST PROFESSIONAL IN THE WORLD

We also produce below grades:

0Cr15Al5 and 0Cr19Al3, etc.


Chemical Composition and Main Property of Fe-Cr-Al Resistance Alloy
Properties Grade 1Cr13Al4 0Cr25Al5 0Cr21Al6 0Cr23Al5 0Cr21Al4 0Cr21Al6Nb 0Cr27Al7Mo2
Main 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
Re opportune opportune opportune opportune opportune opportune opportune
Fe Bal. Bal. Bal. Bal. Bal. Bal. Bal.






Nb0.5 Mo1.8-2.2
Max Continuous Service Temperature(oC) 950 1250 1250 1250 1100 1350 1400
Resisivity 20oC (Ωmm2/m) 1.25
±0.08		 1.42
±0.06		 1.42
±0.07		 1.35
±0.07		 1.23
±0.07		 1.45
±0.07		 1.53
±0.07
Density(g/cm3) 7.4 7.1 7.16 7.25 7.35 7.1 7.1
Thermal Conductivity 52.7 46.1 63.2 60.2 46.9 46.1 45.2
(KJ/m@h@oC)
Coefficient of Thermal Expansion(α×10-6/oC) 15.4 16 14.7 15 13.5 16 16
Approximate Melting Point( oC) 1450 1500 1500 1500 1500 1510 1520
Tensile Strength(N/mm2) 580-680 630-780 630-780 630-780 600-700 650-800 680-830
Elongation(%) >16 >12 >12 >12 >12 >12 >10
Section Variation 65-75 60-75 65-75 65-75 65-75 65-75 65-75
Shrink Rate (%)
Repeatedly Bend Frequency(F/R) >5 >5 >5 >5 >5 >5 >5
Hardness (H.B.) 200-260 200-260 200-260 200-260 200-260 200-260 200-260
Continuous Service Time no ≥80/1300 ≥80/1300 ≥80/1300 ≥80/1250 ≥50/1350 ≥50/1350
Micrographic Structure Ferrite Ferrite Ferrite Ferrite Ferrite Ferrite Ferrite
Magnetic Property Magnetic Magnetic Magnetic Magnetic Magnetic Magnetic Magnetic

Magnetic Alkrothal 720 FeCrAl Alloy For Brake ResistorMagnetic Alkrothal 720 FeCrAl Alloy For Brake ResistorMagnetic Alkrothal 720 FeCrAl Alloy For Brake Resistor

Product tags

tungsten carbide resistivity

,

magnetic sheet metal brake

,

reuland magnetic brake
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Magnetic Alkrothal 720 FeCrAl Alloy For Brake Resistor

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Product Detail
Brand Name :
TANKII
Model Number :
Alkrothal 720
Certification :
ISO9001
Place of Origin :
Shanghai
MOQ :
30kg
Price :
negotiable
Contact Supplier
Magnetic Alkrothal 720 FeCrAl Alloy For Brake Resistor

Shanghai Tankii Alloy Material Co.,Ltd

Verified Supplier
11 Years
shanghai, shanghai
Since 1981
Business Type :
Manufacturer, Exporter
Main Products :
Copper Nickel Alloy Wire, Electric Resistance Wire, Thermocouple Bare Wire
Total Annual :
8000000-100000000
Employee Number :
90~100
Certification Level :
Verified Supplier
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