5083 Aluminum Alloy Flange | 5083-O Flanges Manufacturer
5083 aluminum alloy flanges are high-performance Al-Mg alloy components known for excellent corrosion resistance, especially in seawater and industrial environments. They are widely used in marine, chemical, and structural applications due to their strength and durability.
What is 5083 Aluminum Alloy?
5083 aluminum alloy is a non-heat-treatable aluminum-magnesium alloy containing magnesium as the primary alloying element, along with small amounts of manganese and chromium.
It is widely recognized for:
- Excellent corrosion resistance (especially seawater)
- High strength among non-heat-treatable alloys
- Good weldability
- Stable performance in extreme environments
Common tempers include:
- 5083-O (annealed)
- 5083-H116 / H321 (marine-grade)
Product Range – 5083 Aluminum Flanges
We manufacture a complete range of 5083 aluminum alloy flanges, including:
- Slip-On Flange (SO)
- Weld Neck Flange (WN)
- Socket Weld Flange (SW)
- Plate Flange
Available standards:
- ASME B16.5 / ANSI
- MSS SP-44
- EN 1092-1
- DIN Standards (PN6 / PN10 / PN16 / PN25 / PN40)
DIN Standard 5083 Flanges
Available in multiple DIN flange standards:
- DIN 2573 PN6
- DIN 2576 PN 10 slip on Flange
- DIN 2501 PN10 / PN16
- DIN 2502 PN16
- DIN 2503 PN25 / PN40
- DIN 2543 PN16
👉 Suitable for European piping systems
Advantages of 5083 Aluminum Flanges
- Excellent resistance to seawater corrosion
- High strength-to-weight ratio
- Good performance in low-temperature environments
- Suitable for marine and offshore applications
- Easy fabrication and welding
Chemical Composition of 5083 Aluminum (%)
| Element | Composition |
|---|---|
| Si | ≤ 0.40 |
| Fe | ≤ 0.40 |
| Cu | ≤ 0.10 |
| Mn | 0.40 – 1.00 |
| Cr | 0.05 – 0.25 |
| Mg | 4.0 – 4.9 |
| Zn | ≤ 0.25 |
| Ti | ≤ 0.15 |
| Others | ≤ 0.15 |
Equivalent Grades & Standards
- UNS: A95083
- ISO: AlMg4.5Mn
- EN: EN AW-5083
- ASTM: B221 / B247 / B361
- AMS: 4127 / 4146
Applications of 5083 Flanges
5083 aluminum flanges are widely used in:
- Marine and shipbuilding industry
- Offshore platforms
- Chemical processing plants
- Pressure vessels
- Cryogenic applications
👉 Ideal for corrosive and saltwater environments
Related Aluminum Flanges
We also supply:
- 5052 Aluminum Flanges
- 6063 / 6063-T6 Flanges
Quick Summary
- Material: Aluminum Alloy 5083
- Temper: O / H116 / H321
- Standard: ASME / DIN / EN
- Type: SO / WN / SW / Plate
- Feature: High corrosion resistance
- Application: Marine & chemical
FAQ: 5083 Aluminum Flanges
Q1: What is 5083 aluminum flange used for?
Used in marine, offshore, and chemical industries due to excellent corrosion resistance.
Q2: What is the difference between 5083-O and H116?
5083-O is annealed (soft), while H116 is strain-hardened for marine applications with higher strength.
Q3: Is 5083 aluminum suitable for seawater?
Yes, 5083 offers excellent resistance to seawater corrosion.
Q4: What flange types are available?
Slip-on, weld neck, socket weld, and plate flanges.
