AZ150 Aluzinc Steel Roll Forming Material Guide: Standard Coating, Coil Sizes & Applications

AZ150 Aluzinc Steel Roll Forming Material

1. Overview of AZ150 Aluzinc Steel in Roll Forming

AZ150 Aluzinc steel is the global standard aluminum-zinc coated steel used in roll forming, with a coating weight of 150 g/m² (total both sides). It provides an excellent balance of corrosion resistance, durability, and cost, making it one of the most widely used materials for roofing and cladding worldwide.

The coating consists of 55% aluminum, 43.4% zinc, and 1.6% silicon, combining aluminum’s barrier protection with zinc’s sacrificial protection. This makes AZ150 significantly more corrosion resistant than standard galvanized steel (Z275) in most environments.

In roll forming, AZ150 is the preferred material for roofing panels, wall cladding, and structural systems where long lifespan and performance are critical.

2. Material Composition & Structure

AZ150 Aluzinc steel consists of:

Steel base (cold rolled steel)
Aluminum-zinc alloy coating

Coating Composition:

55% Aluminum
43.4% Zinc
1.6% Silicon

Layer Structure:

Steel core
Aluminum-zinc coating
Protective oxide layer (self-forming)

3. Available Coil Specifications

Thickness Range

0.3mm – 3.0mm

Coil Width

600mm – 1250mm (up to 1500mm available)

Coil Weight

3 tons – 15 tons

Coil ID / OD

ID: 508mm / 610mm
OD: up to 1500mm

Tolerance

Tight thickness tolerance
Excellent flatness for roll forming

4. Mechanical Properties

Typical values:

Yield Strength: 230 – 550 MPa
Tensile Strength: 300 – 700 MPa
Elongation: 15% – 30%
Hardness: 120 – 200 HB

Grades:

AZ150 coating grade
DX51D / S320GD / S350GD

5. Coating Types

Aluzinc Coating (AZ150)

150 g/m² total

Coating Thickness

Approx. 20–25 microns

Lifespan

Indoor: 30+ years
Outdoor: 20–40+ years

Cost Level

Medium

6. Surface Finishes

Smooth metallic finish
Fine spangle
Reflective surface
Ideal base for painting (PPGL)

7. Common Roll Forming Applications

AZ150 Aluzinc steel is used in:

Roofing panels (standing seam, trapezoidal, corrugated)
Wall cladding systems
Industrial buildings
Agricultural structures
Solar mounting systems
Gutters and drainage systems
Structural panels

8. Advantages of AZ150 Aluzinc Steel

Industry standard material
Excellent corrosion resistance
Long service life
Superior heat reflectivity
Cost-effective for outdoor use
Widely available globally

9. Disadvantages / Limitations

Not ideal for marine/coastal environments without coating
Edge protection weaker than full zinc coatings
Slightly higher cost than galvanized steel
Can crack in tight forming radii

10. Roll Forming Machine Considerations

Roll Tooling

Chrome plated rollers recommended
Smooth surface finish essential

Speed

15–60 m/min

Lubrication

Not typically required

Cutting

Hydraulic or flying shear
Clean cuts to avoid edge damage

Common Issues

Edge cracking in tight bends
Surface scratches
Oil canning in roofing panels

11. Common Problems in Production

Edge corrosion if cut edges exposed
Surface marking from worn rollers
Coil camber affecting tracking
Handling damage
Coating damage during forming

12. Pricing Guide

Typical global pricing:

Low: $950–$1150 per ton
Medium: $1150–$1450 per ton
High: $1450–$1800+ per ton

Factors affecting price:

Coating level
Thickness
Steel grade
Supplier and region

13. Comparison with Other Materials

AZ150 vs AZ100

AZ150 = better corrosion resistance
AZ100 = cheaper

AZ150 vs Galvanized Steel (Z275)

AZ150 = better corrosion resistance
Z275 = better edge protection

AZ150 vs Aluminum

AZ150 = stronger
Aluminum = lighter and more corrosion resistant

14. Best Industries Using AZ150 Aluzinc Steel

Construction and roofing
Industrial buildings
Agriculture
Solar energy
Infrastructure

15. How to Choose AZ150 Aluzinc Steel

Choose AZ150 When:

Roofing and cladding applications
Outdoor environments
Long lifespan required
Heat reflectivity is important

Avoid When:

Coastal/marine environments without coating
Tight forming profiles
Extremely heavy-duty structural use

16. FAQ Section

What is AZ150 Aluzinc steel?

It is Aluzinc steel with a 150 g/m² coating.

Is AZ150 the standard?

Yes, it is the most commonly used Aluzinc grade.

Is AZ150 better than galvanized steel?

Yes, for corrosion resistance in most environments.

Is AZ150 suitable for roofing?

Yes, it is one of the best roofing materials.

Can AZ150 be painted?

Yes, it is used as the base for PPGL.

17. Machine Matcher Section

We supply roll forming machines for all material types including AZ150 Aluzinc steel.

Custom-built machines to your profile
New machines built to specification
Global delivery available
UK and USA technical support

Contact:
Machine Matcher
Sales & Technical Team

Quick Specs

Thickness
0.3–3.0mm

Yield Strength
230–550 MPa

Coil Width
600–1250mm

Coil ID
508 / 610mm