SG140 High-Performance Electric Heating Alloy Wire for Glass Tempering Furnaces
SG140 electric heating wire is a proprietary new alloy developed by Beijing Shougang Gitane New Materials Co., Ltd. specifically for the glass tempering furnace industry. This innovative material was engineered to bridge the gap between traditional Iron-Chromium-Aluminum (FeCrAl) alloys and expensive high-nickel alloys.
Product Introduction
By optimizing the composition of low-nickel alloys, SG140 addresses the common industry pain point of oxide scale peeling, which often leads to glass surface pollution. It offers a perfect balance of high-temperature performance and economic efficiency, making it the ideal heating solution for modern tempered glass production lines.
Product Features
Non-Peeling Black Oxide Scale: Unlike traditional FeCrAl, SG140 forms a stable black oxide scale that does not peel off during medium and low-temperature use, ensuring a clean heating environment.
Superior High-Temperature Strength: Exhibits excellent mechanical strength under high-temperature conditions, significantly reducing the risk of element sagging or breakage.
Low Creep & Minimal Deformation: The alloy is designed for high dimensional stability, ensuring the heating elements maintain their shape over long-term operation.
Enhanced Cost-Effectiveness: Provides performance comparable to high-nickel alloys but at a significantly lower cost, offering a higher ROI for glass manufacturers.
High Heating Efficiency: Stable resistivity ensures uniform heat distribution and reduced energy consumption during the tempering process.
Superior High-Temperature Strength: Exhibits excellent mechanical strength under high-temperature conditions, significantly reducing the risk of element sagging or breakage.
Low Creep & Minimal Deformation: The alloy is designed for high dimensional stability, ensuring the heating elements maintain their shape over long-term operation.
Enhanced Cost-Effectiveness: Provides performance comparable to high-nickel alloys but at a significantly lower cost, offering a higher ROI for glass manufacturers.
High Heating Efficiency: Stable resistivity ensures uniform heat distribution and reduced energy consumption during the tempering process.
Technical Parameters
| Type of Steel | C | SI | Mn | Cr | Ni | Al | Fe |
| SG140 | ＜0.06 | 1-3 | ＜0.7 | 18-23 | 33-35 | Add | Remaining |
| Oxidation weight gain rate at 900 ℃ (g/㎡· h) | ||||
| Type of Steel | Oxidation weight gain rate | |||
| SG140 | 0.129 | |||
| Resistance at 20 ℃ in a range of μ Ω· m | ||||
| Type of Steel | resistivity | |||
| SG140 | 1.09 | |||
| Resistance temperature correction coefficient Ct | ||||
| Temperature | 800℃ | 900℃ | 1000℃ | 1100℃ |
| Ct | 1.256 | 1.261 | 1.266 | 1.269 |
Application fields
SG140 is specifically optimized for thermal processing in the glass industry:
Technical Support
Why Choose Us?
Innovation Leader: Developed China’s first FeCrAl heating wire; holder of over 70 patents.
Market Authority: Gitane high-end alloys hold 80% of the domestic market share and rank 2nd globally.
50+ Years Expertise: Deep-rooted experience in smelting and refining specialty heating alloys since the 1950s.
Supply Chain Control: Part of the Shougang Group, ensuring raw material purity and supply stability.
Customization Capability: Expert research team capable of joint research and new product development.
Market Authority: Gitane high-end alloys hold 80% of the domestic market share and rank 2nd globally.
50+ Years Expertise: Deep-rooted experience in smelting and refining specialty heating alloys since the 1950s.
Supply Chain Control: Part of the Shougang Group, ensuring raw material purity and supply stability.
Customization Capability: Expert research team capable of joint research and new product development.
