4J29 Kovar Alloy Steel Rods 8-200mm ASTM F15 K94610 Low Thermal Expansion Bars
Price:
10 - 499 kilograms $30.00
MOQ:
5 Kg
Delivery Time:
5-21 days
Brand:
Victory
Product Description
Kovar Alloy Steel Rods Overview
Kovar Bar is a specialized low thermal expansion alloy featuring exceptional dimensional stability and thermal expansion properties. This premium material is engineered to match glass materials, effectively reducing stress and mismatch issues in electronic packaging applications.
Key Applications
- Electronic packaging and sealing components
- High-precision instruments and measurement devices
- Astronomical equipment and optical systems
- Precision machinery and manufacturing tools
Material Advantages
- Excellent thermal expansion matching with glass
- Superior dimensional stability across temperature ranges
- Enhanced machinability for complex component fabrication
- Reliable weldability for assembly and joining operations
Alloy Specifications and Standards
Available Alloy Types
| Alloy Type | Trade Name | UNS No. | Specifications | Rod | Strip | Wire | Sheet |
|---|---|---|---|---|---|---|---|
| Ni29Co17 | Kovar | K94610 | ASTM F15 | √ | √ | √ | √ |
| FeNi36 | Invar 36 | K93603 | ASTM 1684 | √ | √ | √ | |
| FeNi32Co5 | Super Invar 32-5 | KI93500 | ASTMF1684 | √ | √ | √ | |
| FeNi27Co25 | Ceramvar | F1466 | ASTMF1466 | √ | √ | √ | √ |
| FeNi42 | Alloy 42 | K94100 | ASTM F30 | √ | √ | √ | |
| FeNi46 | Alloy 46 | K94600 | ASTM F30 | √ | √ | √ | |
| FeNi48 | Alloy 48 | K94800 | ASTMF30 | √ | √ | √ | |
| FeNi50 | Alloy 52 | K95050 | ASTM F30 | √ | √ | √ | √ |
Chemical Composition Analysis
| Item | 1J33 | 3J01 | 3J9 | 4J29 | 4J32 | 4J33 | 4J45 | FeNi50 | Invar36 |
|---|---|---|---|---|---|---|---|---|---|
| C | ≤0.05 | ≤0.05 | 0.22-0.26 | ≤0.03 | ≤0.05 | ≤0.03 | ≤0.05 | ≤0.05 | ≤0.1 |
| Mn | ≤0.05 | ≤1.00 | 1.80-2.20 | ≤0.5 | 0.2-0.6 | ≤0.5 | ≤0.8 | ≤0.8 | ≤0.5 |
| Fe | Rest | ||||||||
| P | ≤0.020 | ≤0.020 | ≤0.03 | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.006 |
| S | ≤0.020 | ≤0.020 | ≤0.020 | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.02 | ≤0.04 |
| Si | 0.30-0.6 | ≤0.80 | 1.30-1.70 | ≤0.3 | ≤0.2 | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.35 |
| Ni | 32.8-33.8 | 34.5-36.5 | 9.0-10.5 | 28.5-29.5 | 31.5-33 | 28.5-29.5 | 44.5-45.5 | 49.5-50.5 | 35-38 |
| Al | 1.0-2.0 | 1.00-1.80 | -- | -- | -- | -- | ≤0.1 | ≤0.1 | -- |
| Co | -- | -- | -- | 16.8-17.8 | 3.2-4.2 | 16.8-17.8 | - | - | - |
| Ti | - | 2.70-3.20 | - | - | - | - | - | - | |
| Cu | - | -- | -- | -- | ≤0.2 | 0.4-0.8 | ≤0.2 | -- | -- |
| Cr | -- | 11.5-13.0 | 19.0-20.5 | ≤0.2 | -- | ≤0.2 | -- | -- | -- |
| Mo | -- | -- | 1.60-1.85 | ≤0.2 | -- | ≤0.2 | -- | -- | -- |
Available Sizes and Forms
Standard Dimensions
| Shape | Size (mm) |
|---|---|
| Wire | 0.5-7.5 |
| Rod/Bar | 8.0-200 |
| Strip | (0.5-2.5)*(5-180) |
| Tube | custom made |
| Plate | custom made |
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Get in Touch
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Company
Changzhou Victory Technology Co., Ltd
Location
NO.32 West Taihu Road, Xinbei District, Changzhou, Jiangsu
Contact Person
Victory