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Fe-Cr-Al alloy with high resistivity and serviceability temperature than that for NiCr alloy and also has lower price.
Applications:
Ironr-chrome-aluminium electrie esistorstipis wmidely usedfor making electrie heatng elementsin home appliancesand imdustial fmaces, pid appicatonsarefat rons, ioningmachines,naterheater, plastimoulding dies, soldering irons, metal sheathed tubular elements and cartridge elements.
Grade
|
1Cr13Al4
|
TK1
|
0Cr25Al5
|
0Cr20Al6RE
|
0Cr23Al5
|
0Cr19Al3
|
0Cr21Al6Nb
|
0Cr27Al7Mo2
|
Nominal composition%
|
Cr
|
12.0-15.0
|
22.0-26.0
|
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
|
5.0-7.0
|
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
|
0.04-1.0
|
opportune
|
opportune
|
opportune
|
opportune
|
opportune
|
opportune
|
Fe
|
Bal.
|
|
Bal.
|
Bal.
|
Bal.
|
Bal.
|
Bal.
|
Bal.
|
|
|
|
|
|
|
|
Nb0.5
|
Mo1.8-2.2
|
Max operating temp(°C)
|
650
|
1400
|
1250
|
1250
|
1250
|
1100
|
1350
|
1400
|
Resisivity 20℃(Ω/mm2/m)
|
1.25
|
1.48
|
1.42
|
1.40
|
1.35
|
1.23
|
1.45
|
1.53
|
Density(g/cm³)
|
7.4
|
7.1
|
7.1
|
7.16
|
7.25
|
7.35
|
7.1
|
7.1
|
Thermal Conductivity at 20℃,W/(M·K)
|
0.49
|
0.49
|
0.46
|
0.48
|
3.46
|
0.49
|
0.49
|
0.49
|
Linear Expansion Coefficient(×10¯6/℃)20-1000℃)
|
15.4
|
16
|
16
|
14
|
15
|
13.5
|
16
|
16
|
Approximate Melting Point(℃)
|
1450
|
1520
|
1500
|
1500
|
1500
|
1500
|
1510
|
1520
|
Tensile Strength(N/mm2 )
|
580-680
|
680-830
|
630-780
|
630-780
|
630-780
|
600-700
|
650-800
|
680-830
|
Elongation(%)
|
›16
|
›10
|
›15
|
›15
|
›15
|
›15
|
›12
|
›10
|
Section Variation Shrink Rate(%)
|
65-75
|
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
|
›5
|
Hardness(H.B.)
|
200-260
|
200-260
|
200-260
|
200-260
|
200-260
|
200-260
|
200-260
|
200-260
|
Micrographic Structure
|
Ferrite
|
Ferrite
|
Ferrite
|
Ferrite
|
Ferrite
|
Ferrite
|
Ferrite
|
Ferrite
|
Magnetic Property
|
Magnetic
|
Magnetic
|
Magnetic
|
Magnetic
|
Magnetic
|
Magnetic
|
Magnetic
|
Magnetic
|
Fast Life(h/℃)
|
no
|
≥80/1350
|
≥80/1300
|
≥80/1300
|
≥80/1300
|
≥80/1250
|
≥50/1350
|
≥50/1350
|
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