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Nickel-chromium Alloys Bar Cr20Ni30
Overview
Cr20Ni30 Nickel-Chromium Alloy Bar is a high-nickel alloy designed for extreme high-temperature and corrosive environments, excelling in both oxidation and reduction conditions. With outstanding thermal stability, creep resistance, and machinability, it is the top choice for industrial heating elements, chemical reactors, and high-temperature aerospace components.
Limiting Chemical Composition, %
Chromium(Cr)..................................................................................................................................20.0
Aluminum(Ni)..................................................................................................................................30.0
Balance Iron (Fe) & Trace Elements
Main Properties
| Alloy Nomenclature → | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 | Cr25Ni20 | |
| Performance ↓ | |||||||
| Main chemical composition | Ni | Rest | Rest | 55-61 | 34-37 | 30-34 | 19-22 |
| Cr | 20-23 | 28-31 | 15-18 | 18-21 | 18-21 | 23-27 | |
| Fe | ≤1.0 | ≤1.0 | Rest | Rest | Rest | Rest | |
| Max.Continuous service temp.of element(℃) |
1200 | 1250 | 1150 | 1100 | 1100 | 950 | |
| (Ω·mm²/m) Resistivity at20℃ |
1.09 | 1.18 | 1.12 | 1.04 | 1.04 | 0.96 | Density(g/cm³) | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 | 8 |
Material Properties
Density |
about 8.1g/cm³ |
Resistivity |
1.05 μΩ·m (20°C) |
Temperature Range |
Continuous Service 1050°C, Short-Term Peak 1200°C |
Material Properties
● High-Temperature Oxidation Resistance:
Forms a dense oxide layer for protection up to 1150°C.
● Reduction Environment Resistance::
Performs well in sulfur- and chlorine-containing media.
● Low-Temperature Toughness:
Retains ductility even in cryogenic conditions.
Core Advantages
● Superior Comprehensive Performance:
Combines high-temperature strength and corrosion resistance for versatile applications.
● Cost-Efficiency:
Extended service life minimizes downtime and boosts productivity.
● Ease of Processing:
Compatible with forging, machining, welding, and other processes.
Typical Applications
● Heating Elements:
Furnace rollers, radiant tubes, burner nozzles.
● Chemical Equipment:
Reactor agitators, high-temperature valves, pyrolysis furnace parts.
● Energy Sector:
Nuclear heat exchangers, gas turbine components.
Technical Specifications
| Parameter | Numeric | Unit |
|---|---|---|
| Melting Point | 1370-1420 | ℃ |
| Tensile Strength | ≥550 | MPa |
| Elongation | ≥35 | % |
| Surface Finish | Bright / Sandblasted | - |
| Thickness Range | 5.0-150.0 | mm |
| Width Range | 15-400 | mm |
Applicable Industries
● Chemical Processing
● Nuclear & Power Generation
● Thermal Processing Equipment
● Semiconductor Manufacturing
● Environmental Engineering
Packaging & Certifications
● Packaging:
Anti-rust paper wrapping + reinforced wooden crates for safe shipping.
● Certifications:
Compliant with ASTM B166, ASME SB166; third-party testing available.
Why Choose This Product?
● Precise Composition
Strict control of Ni/Cr ratio guarantees consistent performance.
● Global Supply:
Bulk orders and fast delivery available worldwide.
● Eco-Friendly Compliance:
Meets RoHS and REACH regulations.
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

1Cr13Al4
0Cr15Al5
0Cr19Al2
0Cr21Al4
0Cr21Al6
0Cr25Al5
0Cr21Al6Nb
0Cr27Al7Mo2
1Cr13Al4
0Cr15Al5
0Cr19Al2
0Cr21Al4
0Cr21Al6
0Cr25Al5
0Cr21Al6Nb
0Cr27Al7Mo2
1Cr13Al4
0Cr15Al5
0Cr19Al2
0Cr21Al4
0Cr21Al6
0Cr25Al5
0Cr21Al6Nb
0Cr27Al7Mo2
1Cr13Al4
0Cr15Al5
0Cr19Al2
0Cr21Al4
0Cr21Al6
0Cr25Al5
0Cr21Al6Nb
0Cr27Al7Mo2
1Cr13Al4
0Cr15Al5
0Cr19Al2
0Cr21Al4
0Cr21Al6
0Cr25Al5
0Cr21Al6Nb
0Cr27Al7Mo2
1Cr13Al4
0Cr15Al5
0Cr19Al2
0Cr21Al4
0Cr21Al6
0Cr25Al5
0Cr21Al6Nb
0Cr27Al7Mo2
6J12
6J8
6J13
6J40
CuMn7SN
CuMn30Ni5
6J12
6J8
6J13
6J40
CuMn7SN
CuMn30Ni5
6J12
6J8
6J13
6J40
CuMn7SN
CuMn30Ni5
6J12
6J8
6J13
6J40
CuMn7SN
CuMn30Ni5
CuNi30
CuNi34
CuNi44
CuNi30
CuNi34
CuNi44
CuNi30
CuNi34
CuNi44
CuNi30
CuNi34
CuNi44
4J336(4J36)
4J342(4J42)
4J343(4J43)
4J352(4J49)
4J350(4J50)
6J415(6J15)
6J420(6J20)
6J422(6J22)
6J423(6J23)
6J424(6J24)
6J425(6J25)
6J426(6J26)
6J520(6J27)
4J336(4J36)
4J342(4J42)
4J343(4J43)
4J352(4J49)
4J350(4J50)
6J415(6J15)
6J420(6J20)
6J422(6J22)
6J423(6J23)
6J424(6J24)
6J425(6J25)
6J426(6J26)
6J520(6J27)
4J336(4J36)
4J342(4J42)
4J343(4J43)
4J352(4J49)
4J350(4J50)
6J415(6J15)
6J420(6J20)
6J422(6J22)
6J423(6J23)
6J424(6J24)
6J425(6J25)
6J426(6J26)
6J520(6J27)
6J525(6J28)
4J336(4J36)
4J342(4J42)
4J343(4J43)
4J352(4J49)
4J350(4J50)
6J415(6J15)
6J420(6J20)
6J422(6J22)
6J423(6J23)
6J424(6J24)
6J425(6J25)
6J426(6J26)
6J520(6J27)
6J525(6J28)
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Strip & Foil
Round Wire
Bar & Rod
Electrothermal strip
Bolts & Fasteners
Flange & Ring
Wire & Welding
Reststance wire & flat wire
Electric alloy wire
Electric furnace wire