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Fe-Cr-Al Alloys Round Wire 0Cr21Al4

Place of Origin Jiangsu,China
Model Number Fe-Cr-Al Alloys Round Wire 0Cr21Al4
Trade Names Iron chromium aluminum electrothermal alloy wire
Dimensions Customized Size
Delivery Conditions Grinding. Polished. Bright.
Avaliable Shapes Wire.Customized
MOQ 50~200 (KG)
Production Standards GB/T、GJB、YB/T、ASTM、EN、DIN、IEC
Packaging Details Wooden Case, or as per Client's request
Payment Terms L/C, T/T, Western Union, MoneyGram
Trade Terms FOB, CIF, DDP, DAP, EXW
Delivery Time 20~60 days

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product details

Overview

Fe-Cr-Al Alloys Round Wire 0Cr21Al4 is a kind of fe-chromium-aluminum electric heating alloy round wire.

Limiting Chemical Composition, %

Chromium..................................................................................................................................12.0-15.0

Aluminum.................................................................................................................................4.0-6.0

The rest is iron

Main Properties

Alloy Nomenclature →		0Cr27Al7Mo2	0Cr21Al6Nb	FCHW-1 0Cr25Al5 0Cr23Al5	0Cr21Al6	FCHW-2 0Cr21Al4 0Cr19Al3	1Cr13Al4
Alloy Nomenclature →
Performance ↓
Main chemical composition	Cr	26.5-27.8	21-23	23.5-26	19-22	17-21	12-15
	Al	6-7	5-7	4.5-6.5	5-7	3-4.2	4-6
	Fe	Rest	Rest	Rest	Rest	Rest	Rest
	Else	Mo quantity added to ：1.8-2.2	Nb quantity added to ： 0.5	——	——	——	——
Max.Continuous service temp.of element(℃）		1400	1350	1250	1250	1100	950
（Ω·mm²/m） Resistivity at20℃		1.53	1.45	1.42	1.42	1.23	1.25
Density（g/cm³）		7.1	7.1	7.1	7.16	7.35	7.4

Physical Constants

Density	about 7.4g/cm³
Thermal conductivity	52.7kJ/m·h·℃
15.4×10⁻⁶/℃	Linear expansion coefficient

Performance feature

● High resistivity:

at 20℃, the resistivity is about 1.25±0.08μΩ · m, and larger alloy materials can be used in the design of heating elements, which is conducive to extending the service life of components.

● Low resistance temperature coefficient:

The resistance changes relatively little with the temperature, and can maintain relatively stable resistance performance under different temperature environments, so as to ensure that the heating power of the heating element is relatively stable.

● High temperature resistance:

The maximum operating temperature can reach 950℃, with good high temperature stability.

● Good oxidation resistance:

Under high temperature, a dense Al₂O₃ oxide film can be formed on its surface, which has a dense structure, good adhesion to the matrix, and is not easy to fall off, and has excellent oxidation resistance to effectively prevent further oxidation corrosion of the alloy.

● Good sulfur resistance:

good corrosion resistance to sulfur-containing atmosphere and surface contaminated by sulfur-containing substances.

Application field

● Brake resistance:

mainly used in electric locomotives, diesel locomotives, subway vehicles and high-speed train braking system brake resistance.

● Heating elements:

such as heating elements for kitchen appliances such as ceramic stoves, and heating wires in high temperature heating equipment such as industrial furnaces.

Available Forms

We provide you with a variety of product forms, including but not limited to

● Strip & Foil

● Round Wire &Flat Wire

● Bar & Rod

● Electrothermal Strip

● Flange & Ring

● Wire & Welding

● Reststance Wire

● Electric Alloy Wire

● Electric Furnace Bar

● Customize

description2

Strip ＆ Foil

Round Wire

Bar ＆ Rod

Electrothermal Strip

Bolts ＆ Fasteners

Flange ＆ Ring

Wire ＆ Welding

Reststance Wire ＆ Flat Wire

Electric Alloy Wire

Electric Furnace Wire

Fe-Cr-Al Alloys Round Wire 0Cr21Al4

Overview

Application field

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