ThePipingMart Blog Grades 1430 Aluminium Alloy – Composition, Properties and Uses

1430 Aluminium Alloy – Composition, Properties and Uses

Aluminium 1430

Alloy 1430 is a popular alloy used for a variety of applications. It boasts excellent physical and chemical properties, making it an ideal choice for many manufacturing needs. In this blog post, we’ll look at the composition, properties, uses, corrosion resistance, heat resistance, heat treatment, machining and welding of Aluminium 1430.

1430 Aluminium Composition

Aluminium 1430 contains 1% magnesium and 0.3% silicon by weight. It is commonly found in wrought alloys with a tensile strength ranging from 40 to 140 ksi (275-960 MPa).

Element Content (%)
Iron, Fe 97.03 – 98.22
Chromium, Cr 0.80 – 1.10
Manganese, Mn 0.40 – 0.60
Carbon, C 0.280 – 0.330
Silicon, Si 0.15 – 0.30
Molybdenum, Mo 0.15 – 0.25
Sulfur, S 0.040
Phosphorous, P 0.035

1430 Aluminium Chemical Properties

Aluminium 1430 has excellent chemical properties due to its high purity and low impurities like iron and copper. This makes it suitable for many industries, including automotive and aerospace applications.

1430 Aluminium Mechanical Properties

Properties Metric Imperial
Tensile strength, ultimate 560 MPa 81200 psi
Tensile strength, yield 460 MPa 66700 psi
Modulus of elasticity 190-210 GPa 27557-30458 ksi
Bulk modulus (Typical for steel) 140 GPa 20300 ksi
Shear modulus (Typical for steel) 80 GPa 11600 ksi
Poissons ratio 0.27-0.30 0.27-0.30
Elongation at break (in 50 mm) 21.50% 21.50%
Reduction of area 59.6 59.60%
Hardness, Brinell 217 217
Hardness, Knoop (Converted from Brinell hardness) 240 240
Hardness, Rockwell B (Converted from Brinell hardness) 95 95
Hardness, Rockwell C (Converted from Brinell hardness, value below normal HRC range, for comparison purposes only.) 17 17
Hardness, Vickers (Converted from Brinell hardness) 228 228
Machinability (Annealed and cold drawn. Based on 100% machinability for AISI 1212 steel.) 70 70

1430 Aluminium Physical Properties

Aluminium 1430 has good formability and weldability due to its low melting point. It also has good electrical conductivity, making it great for applications like wiring or electronic components where high conductivity is needed. It also has good thermal conductivity, which means it can be used in applications that require heat transfer, such as cookware or radiators.

Properties Metric Imperial
Density 7.85 g/cm3 0.284 lb/in³
Melting point 1432°C 2610°F

1430 Aluminium Thermal Properties

Properties Metric Imperial
Thermal conductivity (100°C) 42.7 W/mK 296 BTU in/hr.ft2. °F

1430 Aluminium Equivalent

AMS 6348 AMS 6371 ASTM A331 ASTM A829 DIN 1.7218
AMS 6350 AMS 6373 ASTM A506 MIL S-18729 UNI 25 CrMo 4
AMS 6351 AMS 6374 ASTM A507 MIL S-6758 JIS SCCrM 1
AMS 6360 AMS 6528 ASTM A513 SAE J1397 JIS SCM 2
AMS 6361 AMS 7496 ASTM A519 SAE J404 SS 2225
AMS 6362 ASTM A29 ASTM A646 SAE J412 B.S. CDS 110
AMS 6370 ASTM A322 ASTM A752 AFNOR 25 CD 4 (S) SAE J770

1430 Aluminium Uses

Aluminium 1430 is most commonly used in the automotive industry due to its lightweight yet strong construction capabilities. It is also often used in aerospace due to its excellent strength-to-weight ratio and corrosion resistance properties. Additionally, it can be found in manufacturing appliances like refrigerators, water heater parts and medical equipment because of its ability to resist oxidation and corrosion when exposed to air or moisture.

Corrosion Resistance

The addition of magnesium gives Aluminium 1430 excellent corrosion resistance when exposed to air or water vapours over long periods. This makes it suitable for use in marine environments such as boat hulls or propellers where saltwater exposure may occur regularly.

Heat Resistance

Aluminium 1430 has moderate heat resistance thanks to its low melting point, which allows it to withstand temperatures up to 500°F without any risk of warping or distortion. This makes it perfect for high-heat applications like cookware or furnace components.

Heat Treatment

The addition of magnesium gives aluminium 1400 better machinability than other alloys; however, if you are looking for even better results, you can use a process called double ageing, which involves heating the material at elevated temperatures followed by rapid cooling cycles until desired properties are achieved (elevated hardness/tensile strength).


Because aluminium 1400 has good formability and weldability characteristics, it is easy to work with CNC machining methods like milling or turning operations where precise tolerances are needed on complex shapes with minimal waste material left over from production processes.


When welding aluminium 1400, you should use MIG (Gas Metal Arc Welding) or TIG (Tungsten Inert Gas Welding). Both techniques offer superior results compared with oxyacetylene welding, MIG welding may be preferred because it’s easier than TIG welding – especially when working with thicker materials.


Overall, aluminium 1400 is an incredibly versatile alloy that offers excellent formability, weldability & corrosion resistance while boasting lightweight & high-strength characteristics – making it perfect for many types of applications across multiple industries! Thanks to its wide range of chemical & physical properties combined with ease of machinability & welding capabilities – this versatile alloy will continue to be one of the top choices in metals today!

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