Resistohm 145 / 0cr21al6nb / HN A1 A-1 Resistance Heating Wire on Resistance Furnace
Resistohm 145 / 0cr21al6nb / HN A1 A-1 Resistance Heating Wire on Resistance Furnace
Resisohm 145A1 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: 0.5 ~ 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 | |||||||||||||||||
| Cr | Al | Re | Fe | ||||||||||||||
| 25.0 | 6.0 | 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/cm3) | 7.1 | ||||||||||||||||
| Approximate Melting Point( ºC) | 1500 | ||||||||||||||||
| Elongation (%) | 16-33 | ||||||||||||||||
| Repeatedly Bend Frequency(F/R) 20ºC | 7-12 | ||||||||||||||||
| Continuous Service Time under 1350 ºC | More than 60 hours | ||||||||||||||||
| Micrographic Structure | Ferrite | ||||||||||||||||
| The relationship between the maximum operating temperature and the furnace atmosphere | |||||||||||||||||
| Furnace | Dry Air | Humid Air | hydrogen-argon | Argon | Decomposition | ||||||||||||
| atmosphere | gas | ammonia gas | |||||||||||||||
| Temp(ºC) | 1400 | 1200 | 1400 | 950 | 1200 | ||||||||||||
| Alloy Nomenclature Performance | 1Cr13AL4 | 0Cr25Al5 | 0Cr21AL6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
| Cr | 12.0-15.0 | 23.0-26.0 | 19.0-22.0 | 20.5-23.5 | 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 | 4.2-5.3 | 3.0-4.2 | 5.0-7.0 | 6.0-7.0 | |
| Main Chemical composition | Re | opportune | opportune | opportune | opportune | opportune | opportune | opportune |
| Fe | Rest | Rest | Rest | Rest | Rest | Rest | Rest | |
| Nb0.5 | Mo1.8-2.2 | |||||||
| Max. continuous service temp. of element(ºC) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
| Resistivity at 20ºC(μΩ/m) | 1.25 | 1.42 | 1.42 | 1.35 | 1.23 | 1.45 | 1.53 | |
| Density(g/cm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
| Thermal conductivity(KJ/m.h.ºC) | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | -- | |
| Coefficient of lines expansion(α*10-6/ºC) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 | |
| Melting point approx.( 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 at rupture(%) | >16 | >12 | >12 | >12 | >12 | >12 | >10 | |
| Variation of area(%) | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
| Repeat Bending 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(Hours/ ºC) | -- | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥50/1350 | |
| Micrographic structure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
| Magnetic properties | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | |
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