SGHYZ High-Temperature Heating Alloy: A Reliable Kanthal A1 Alternative for 1400°C Industrial Heating Applications

2026-08-12

In ultra-high-temperature heating scenarios above 1300°C, such as ceramic sintering, semiconductor diffusion furnaces and high-end industrial kilns, the oxidation resistance, high-temperature strength and resistance stability of heating elements directly determine operational costs and process yield. For a long time, imported FeCrAl grades like Kanthal A1 have been the benchmark in this premium market segment.

Founded in 1956, SPARK by Shougang Gitane brings 70 years of expertise in heating alloy R&D. Building on the 1st-generation 0Cr21Al6Nb and 2nd-generation HRE alloys, we have launched the 3rd-generation SGHYZ high-temperature heating alloy, a reliable Kanthal A1 equivalent with higher material purity and superior high-temperature oxidation resistance, serving as a premium import alternative for mid-to-high-end industrial customers worldwide.

SGHYZ FeCrAl wire

Core Technical Advantages

SGHYZ is an independently developed 3rd-generation ultra-high-temperature FeCrAl alloy, with its smelting and manufacturing technology granted a national invention patent (Patent No. ZL201910173874X).

Upgraded from the 2nd-generation HRE alloy, SGHYZ features specially matched micro-alloying elements and a unique metallurgical manufacturing process, which significantly improves material purity and reduces impurity segregation. At elevated temperatures, it forms a denser, more adherent alumina protective film that effectively resists oxidation and thermal shock spalling, delivering notably longer service life than conventional high-temperature FeCrAl materials under the same working conditions. It has been widely recognized by domestic and overseas customers in high-temperature resistant fiber and high-end kiln sectors.

Key Performance & Specification Parameters

As a 1400°C-class high-temperature heating material, SGHYZ meets premium industrial selection criteria with core parameters as follows:

Maximum service temperature: 1400°C
Resistivity at 20°C: 1.45 ± 0.07 μΩ·m
Annealed tensile strength: 650–800 N/mm²
High-temperature strength at 1000°C: 20 MPa
Rapid life test at 1350°C (GB/T 13300-91 compliant): ＞80 h
Elongation: ＞14%
Emissivity (fully oxidized): 0.7
Density: 7.1 g/cm³

The product covers full-form industrial specifications: round wire diameter φ0.1–9.0mm; flat strip thickness 0.5–2.5mm, width 5–48mm. Multiple delivery conditions are available, including golden-colored coils (φ1.0–5.0mm), blue-colored coils (＞φ5.0mm), bright spools (≤φ1.0mm) and ground flat strips, with customized production supported.

SGHYZ high-performance electric heating wire

Four Core Application Scenarios & Value

1. High-Temperature Ceramic Sintering Kilns

Ceramic sintering kilns for architectural, technical and electronic ceramics operate continuously at 1250–1380°C. Conventional heating wires suffer fast oxidation and frequent replacement, causing costly kiln downtime. With excellent high-temperature oxidation and thermal shock resistance, SGHYZ maintains stable service life under continuous high temperature and cyclic thermal cycling, reducing replacement frequency and improving kiln efficiency and product consistency.

2. Semiconductor & Electronic High-Temperature Diffusion Furnaces

High-temperature diffusion and oxidation processes in chip and power device manufacturing impose strict requirements on heating element purity, resistance stability and temperature uniformity. Thanks to its high-purity matrix and stable temperature coefficient of resistance, SGHYZ meets the precision temperature control demands of 1200–1350°C diffusion furnaces, minimizing process variation and fitting high-end electronics manufacturing including semiconductors and photovoltaic cells.

3. Glass & Photovoltaic Crystal Heat Treatment

Automotive glass furnaces and photovoltaic crystal growth & annealing equipment generally adopt high power density heating designs, requiring excellent high-temperature creep resistance. SGHYZ features outstanding high-temperature strength, supporting higher surface load without sagging deformation. It is compatible with compact furnace designs and meets the reliability requirements of large-scale continuous production.

4. Industrial Burners & High-Temperature Flue Gas Treatment

Industrial radiant tube burners, boiler energy-saving retrofits and high-temperature flue gas treatment systems face large temperature fluctuations and certain corrosive media. With sufficient temperature margin and strong oxidation & corrosion resistance, SGHYZ delivers long-term stable performance in complex flue gas environments, reducing maintenance and replacement costs.

As a national-level "Little Giant" enterprise and national green factory, Shougang Gitane has presided over the formulation of all national electric heating alloy standards in China and holds 71 independent patents.

As the core product of our 3rd-generation high-temperature alloy portfolio, SGHYZ performs on par with Kanthal A1, combining stable quality, flexible delivery and local technical support. It is widely applied in high-end industrial sectors including ceramics, semiconductors, glass and photovoltaics, serving as a highly reliable import alternative for global mid-to-high-end purchasers in 1400°C-class heating applications.

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