Comparison Table of Casting Characteristics of Major Aluminium Casting Alloys
|
|
||||||||
|
Tensile Strength (N/mm2) |
140-170 |
160-190 |
95-120 |
170 |
180 |
130-150 |
140 |
215 |
|
Elongation (%) |
3 |
5 |
3-5 |
2 |
1.5 |
2 |
1 |
4 |
|
Brinell Hardness |
50-70 |
50-55 |
75-85 |
85 |
85 |
55-65 |
70-85 |
70 |
|
Density (g/cm3) |
2.65 |
2.65 |
2.68 |
2.7 |
2.79 |
2.68 |
2.75 |
2.81 |
|
Freezing range (degC approx.) |
642-580 |
575-565 |
575-550 |
620-550 |
580-520 |
615-550 |
605-525 |
615-570 |
|
Thermal Con (cal/cm2/cm/deg C @ 25degC) |
0.33 |
0.34 |
0.35 |
0.34 |
0.23 |
0.36 |
0.37 |
0.35 |
|
Electrical Con (% copper std. @ 20degC) |
31 |
37 |
38 |
39 |
24 |
39 |
27 |
35 |
|
Machinability |
E |
P |
F |
G |
G |
G |
G |
G |
|
Corrosion Resistance |
E |
E |
G |
G |
F |
E |
G |
E |
|
Electro Plating Suitability |
F (2) |
F (1) |
F (1) |
F (1) |
F |
F |
G |
F |
|
Non Spark |
No |
No |
No |
No |
No |
No |
No |
No |
|
Casting Characteristics - Sand Casting |
F |
E |
G |
G |
F* |
E |
G |
G |
|
Casting Characteristics - Gravity Die Casting |
F |
E |
G |
G |
F |
E |
E |
F |
|
Casting Characteristics - High Pressure Die Casting |
F |
G |
* |
* |
E |
G |
G |
F |
|
Material Cost (£/kg - Dec 2011) |
£2.20 |
£1.95 |
£1.94 |
£1.94 |
£1.76 |
£1.92 |
£1.79 |
£2.20 |
E = Excellent
G = Good
F = Fair
P = Poor
U = Unsuitable
* = Not normally used in this form
1 = These alloys, containing Silicon, require a modification treatment for good adhesion
2 = Can be plated, but not recommended
Trying to figure out how aluminium specifications from different regions translate to the alloys used domestically can be confusing.
Our Global Standards Chart will help you to compare and contrast the different specifications of aluminium alloys between the UK and other countries such as Japan, France, Italy, Germany, and the United States.
HOW can MRT Castings help you?
I want...
- Select what you need
- a complete solution
- to develop a new component from initial concept
- advice on what processes are best suited to my component
- prototypes before committing to production tooling
- to re-shore production to the UK from overseas
- a new supplier to use existing tooling
- to convert a machined from solid part to a casting
- a supplier who can meet stringent quality requirements
New at MRT Blogs
Once again, MRT Castings have partnered with Brother and their UK agent, Whitehouse Machine Tools – a relationship that has spanned more than 25 years.
Read More
At a time when young engineering talent is in short supply, MRT Castings is taking a proactive approach to recruitment.
Read MoreUnit 4 Rebuild
11th Sep 2025
MRT is delighted to announce the completion of the latest phase of our on-site redevelopment programme. Following the relocation to our new foundry building in 2021, Unit 4, the erstwhile home of our diecasting operations, was left empty and to be honest, a little worse for wear.
Read More