5086 H32 vs H116
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5086-H32 and 5086-H116 aluminum alloys both belong to the 5000 series and are known for their excellent corrosion resistance and suitability for marine environments. These alloys are primarily alloyed with magnesium to enhance their strength and weldability. However, their temper grades differ, which affects their mechanical properties and ideal applications.
5086 aluminum alloys are widely used in shipbuilding, aerospace, and structural components due to their corrosion resistance and weldability. The main differences between the H32 and H116 temper states lie in their processing methods, mechanical properties, and application suitability.
5086 H32 vs H116 Summary of Key Differences
| Factor | 5086-H32 | 5086-H116 |
| Processing | Strain-hardened + stabilized | Strain-hardened (no thermal) |
| Corrosion Use | General-purpose | Marine/offshore |
| Ductility | Slightly higher | Slightly lower |
5086 H32 vs H116 Alloy Composition and General Properties
- 5086 H32 and 5086-H116 alloys have similar chemical compositions and are non-heat treatable. They gain strength through strain hardening or cold working.
- 5086 alloys are non-magnetic, easy to weld, and have good formability, making them suitable for various applications including marine environments, pressure vessels, and armored vehicles.
Both alloys have similar tensile and yield strength, with 5086-H32 having slightly higher fatigue strength. The slight differences in mechanical properties mainly stem from the specific tempering processes each alloy undergoes.
5086 H32 vs H116 Standards and Certifications
- H32: Complies with U.S. standards (e.g., ASTM B928), widely used in North America.
- H116: Complies with European standards (EN 485-2), commonly used in international marine projects.
5086 H32 vs H116 Corrosion Resistance
H116 performs significantly better than H32 in marine environments, as its special treatment process effectively prevents intergranular corrosion and stress corrosion cracking in chloride ion environments.
- H116: Optimized for marine environments, using a strain-hardening process that does not require heat stabilization, offering superior seawater corrosion resistance.
- H32: Suitable for general use, but its performance in highly corrosive environments may not be as good as H116.
5086 H32 vs H116 Temper Designations and Processing Methods
5086 H32 vs H116 Temper Designations
- 5086-H32: This designation indicates that the alloy has been strain-hardened to H3 level 32 strength. It is typically used in applications requiring moderate strength and good formability.
- 5086 H116: This designation indicates that the alloy has been strain-hardened to H1 level 116 strength. It is typically used in applications requiring higher strength and resistance to stress corrosion cracking.
| Aluminum Alloy Model | Alloy Temper | Symbol Meaning | Description | Applications |
| 5086 | H32 | H3 | Strain-hardened and stabilized to reduce residual stress. The strain-hardening degree is one-quarter hardness, balancing strength and formability. | Suitable for marine environments, high-strength structural components, shipbuilding, etc. |
| 5086 | H116 | H1 | Strain-hardened without additional heat treatment, with enhanced corrosion resistance (especially in marine environments). The "16" suffix indicates compliance with European standards (EN 485-2). | Primarily used in marine environments for ship structures, seawater equipment, etc. |
5086 H32 vs H116 Processing Methods
- H32: Stabilized after cold working (strain hardening), in a semi-hardened state.
- H116: Further optimized for corrosion resistance on top of H32, especially enhancing resistance to intergranular corrosion in marine environments. This state typically involves special production processes, such as controlling the distribution of magnesium to improve material stability.
5086 H32 vs H116 Applications
- H32: Commonly used for structural components requiring moderate strength and formability, storage tanks, and automotive parts.
- H116: Suitable for marine structures (e.g., hulls, offshore platforms) and aerospace components that require excellent corrosion resistance.
| Alloy | Typical Applications |
| 5086-H32 | Marine applications, support structures, catwalks, trench covers |
| 5086-H116 | Marine environments, pressure vessels, armored vehicles |
The choice between 5086 H32 and 5086-H116 depends on the specific requirements of the application, such as the need for higher strength or enhanced resistance to stress corrosion cracking.
Although both 5086-H32 and 5086-H116 alloys have excellent corrosion resistance and weldability, the selection between them should be based on the specific mechanical performance requirements and environmental conditions of the intended application.
The choice between H32 and H116 depends on environmental exposure and regional standards. For shipbuilding applications, H116 is the best choice, while H32 is suitable for general industrial uses. Both have similar strength but differ in corrosion resistance and processing methods.
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Tags: Marine Aluminum 5086