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Magnetic Alkrothal 720 FeCrAl Alloy For Brake Resistor

Name: Magnetic Alkrothal 720 FeCrAl Alloy For Brake Resistor
Brand: TANKII
SKU: Alkrothal 720
Rating: 4.6 (114 reviews)

Product Details

Place of Origin: Shanghai

Brand Name: TANKII

Certification: ISO9001

Model Number: Alkrothal 720

Payment & Shipping Terms

Minimum Order Quantity: 30kg

Price: negotiable

Packaging Details: spool,coil, carton,wooden pallet or box

Delivery Time: 8-20 days

Payment Terms: L/C, T/T, Western Union

Supply Ability: 300+ton+month

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Specifications

Description

Specifications

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                                                                                                                                                                                                                                                                                                                    Alkrothal 720 FeCrAl Alloy, Brake Resistor FeCrAl Alloy, Magnetic FeCrAl Alloy
                                                      

Material:	FeCrAl	Resistivity:	1.25
Density:	7.4	Elongation:	＞16

Material:	FeCrAl
Resistivity:	1.25
Density:	7.4
Elongation:	＞16

Description

Magnetic Alkrothal 720 FeCrAl Alloy For Brake Resistor

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)		52.7	46.1	63.2	60.2	46.9	46.1	45.2
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 (%)		65-75	60-75	65-75	65-75	65-75	65-75	65-75
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 Resistor 0

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