Alloy C276, also known as Hastelloy C276, is a nickel-molybdenum-chromium superalloy with excellent corrosion resistance in harsh chemical environments. It is commonly used for manufacturing custom springs that are required to perform under extreme temperatures, acidic conditions, or seawater exposure. This article explores the characteristics, applications, manufacturing options, and suppliers of custom Alloy C276 springs.
Properties of Alloy C276 for Spring Applications
Alloy C276 offers an ideal balance of strength, corrosion resistance, and temperature stability for precision springs. Below is a summary of its key material properties:
| Property | Typical Value | Remarks |
|---|---|---|
| Density | 8.89 g/cm³ | Heavier than stainless steel |
| Yield Strength | 283 MPa (annealed) | Can be increased with cold work |
| Tensile Strength | 690 MPa | High tensile durability |
| Max Working Temp | ~1040°C | Excellent for high-temperature use |
| Corrosion Resistance | Exceptional | Resistant to chlorides, acids, seawater |
Types of Custom Springs Made from Alloy C276
Hastelloy C276 is used in a variety of spring types, depending on the application and loading conditions. Below are the common spring types manufactured from this alloy:
| Spring Type | Description | Applications |
|---|---|---|
| Compression Spring | Open-coil springs that resist compression | Chemical vessels, pumps |
| Torsion Spring | Springs that twist under load | Rotary actuators, marine valves |
| Extension Spring | Closed-coil springs that stretch under tension | Offshore assemblies, aerospace |
| Wave Spring | Flat-wire springs with axial compression | Space-constrained environments |
Manufacturing Specifications
Custom C276 springs are manufactured to precise dimensions and performance tolerances. The following parameters are typically defined when ordering:
| Parameter | Typical Options | Notes |
|---|---|---|
| Wire Diameter | 0.2 mm – 10 mm | Fine wire for electronics, thick wire for heavy load |
| Spring OD | 2 mm – 100 mm | Custom to fit housing or assembly |
| Free Length | 5 mm – 500 mm | Varies by spring type |
| Finish | Pickled, passivated, bright annealed | Corrosion protection and appearance |
Industries That Use Custom Alloy C276 Springs
Custom springs made from Alloy C276 are designed for performance in corrosive, high-stress environments, including:
| Industry | Application |
|---|---|
| Chemical Processing | Reactor springs, acid pump seals |
| Oil & Gas | Subsea valve components, spring-loaded seals |
| Pharmaceutical | Cleanroom spring actuators, sanitary systems |
| Marine | Springs in saltwater environments |
| Aerospace | High-heat, corrosion-resistant fasteners |
Top Chinese Suppliers of Alloy C276 Springs
Several factories in China specialize in precision spring fabrication using C276 wire, offering export-grade quality with global certifications:
| Supplier | Location | Certifications | Custom Options |
|---|---|---|---|
| Jiangsu Nickel Alloy Spring Co. | Changzhou, Jiangsu | ISO 9001, SGS | Compression, extension, torsion |
| Shanghai HY Industry Co., Ltd | Shanghai | ISO 9001 | All spring types, CNC forming |
| DLX Alloy Material Co., Ltd | Jiangsu | ISO 9001 | Ultra-fine wire springs |
Related Questions
What are the advantages of Alloy C276 springs?
Alloy C276 springs offer superior corrosion resistance, high mechanical strength, and long service life in extreme environments, outperforming stainless steel and other base alloys.
Can C276 springs be custom-made to drawing?
Yes, most Chinese factories accept custom drawings and can manufacture to tight tolerances, including CNC coiling and post-treatment.
Where can I buy custom C276 springs?
You can purchase from Chinese suppliers like Shanghai HY Industry or Jiangsu Nickel Alloy, who export globally and offer OEM/ODM customization.
English 
Korean 
Japanese 
Arabic 
Spanish 
German 
Portuguese 
French 
Russian 
Italian