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Alloy 42 Sheet – Top Quality Precision Alloys From Chinese Manufacturers
Alloy 42 Sheet is a precision-engineered nickel iron alloy designed for applications demanding low thermal expansion and high reliability. This iron–nickel alloy is widely used in electronics, aerospace, and medical industries due to its excellent stability and compatibility with glass-to-metal sealing.
Price: Contact Us for a Custom Quote
For pricing on Alloy 42 Sheet, pricing depends on specifications like thickness and quantity. Contact us for a customized Iron Nickel Alloy quote.
Specifications of Alloy 42 Sheet
- Thickness: 0.05 mm to 5.0 mm
- Width: Up to 1250 mm
- Length: Customizable, typically 1000–3000 mm
- Surface Finish: Cold-rolled, annealed, or mirror-polished
- Tolerance: ±0.01 mm (thickness), ±0.5 mm (width)
Features (Advantages)
- Controlled Thermal Expansion: Matches glass and ceramics for reliable seals.
- Superior Stability: Maintains integrity across temperature changes.
- Corrosion Resistance: Resists mild chemical exposure effectively.
- Fabrication Ease: Supports welding, forming, and machining.
- High-Quality Production: Manufactured in our China facility with rigorous standards.
Applications
Alloy 42 Sheet serves critical roles in industries requiring precision:
- Electronics: Semiconductor packaging and hermetic seals.
- Aerospace: Sensor components and instrumentation.
- Medical: Implantable devices and diagnostic equipment.
- Telecommunications: Microwave circuits and connectors.
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | 41.0–42.0 |
| Iron (Fe) | Balance |
| Manganese (Mn) | ≤0.8 |
| Silicon (Si) | ≤0.3 |
| Carbon (C) | ≤0.05 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 500–650 MPa |
| Yield Strength | 250–340 MPa |
| Elongation | 20–35% |
| Hardness (HV) | 120–190 |
Chemical Properties
- The nickel iron alloy properties of Alloy 42 Sheet ensure good resistance to mild acids (e.g., dilute sulfuric acid) and atmospheric corrosion. It is less effective against strong alkalis or oxidizing acids like nitric acid. Use in controlled environments for best results.
Things to Note (Limitations)
- Temperature Limits: Avoid prolonged exposure above 300°C to maintain thermal expansion properties.
- Corrosive Environments: Not suitable for strong alkalis or highly oxidizing conditions.
- Mechanical Loads: High-stress applications may require additional support.
Corrosion Data
| Environment | Corrosion Rate (mm/year) |
|---|---|
| Atmospheric (Humid/Coastal) | ≤0.1 |
| Mild Acid (Dilute Sulfuric) | ≤0.15 |
| Strong Alkali (NaOH) | Not Recommended |
Contact us for detailed corrosion resistance data specific to your application.
Welding and Fabrication Tips
Alloy 42 Sheet supports the following welding methods:
- TIG Welding: Preferred for precision and minimal distortion.
- MIG Welding: Suitable for thicker sheets with proper settings.
- Resistance Welding: Effective for small, precise joins.
Use low heat input to avoid distortion. For machining, employ carbide tools at slow speeds with heavy feeds. Annealing post-fabrication enhances formability and reduces stresses.
Customer Reviews
Frequently Asked Questions
Q: How does Alloy 42 Sheet compare to other nickel iron alloys?
A: Alloy 42 Sheet has a 41–42% nickel content optimized for low thermal expansion, making it ideal for glass-to-metal sealing compared to alloys like Alloy 52.
Q: Can Alloy 42 Sheet be customized?
A: Yes, our China manufacturer offers custom thicknesses, widths, and finishes to meet specific needs.
Q: Is Alloy 42 Sheet suitable for high-temperature applications?
A: It’s not recommended for sustained use above 300°C, as thermal expansion properties may degrade.
Q: How does Alloy 42 Sheet perform in corrosive environments?
A: It resists mild acids and atmospheric corrosion but should avoid strong alkalis and oxidizing acids.
Q: What machining techniques work best for Iron Nickel Alloy Sheet?
A: Use carbide tools with slow speeds and heavy feeds; annealing post-machining enhances results.