Zincalume AZ150 (AS 1397)

low_alloy_steel
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Quick answer

Zincalume AZ150 (AS 1397) is a low alloy steel specified by AS 1397. Typical composition: .

Aluminium-zinc alloy coated steel sheet per AS 1397, AZ150 coating class (~150 g/m² total both sides, ~75 g/m² per side nominal). Widely used in roofing, cladding, and light structural applications in Australia and New Zealand.

Applicable Standards

  • AS 1397

Composition Ranges (wt %)

Element Min (%) Max (%) Typical Range
C — 0.12 ~0.06
Mn — 0.6 ~0.3
P — 0.03 ~0.01
S — 0.03 ~0.01
C 0.0–0.12% Mn 0.0–0.6% P 0.0–0.03% S 0.0–0.03%

Coating

  • Base metal: low-carbon steel
  • Coating type: Aluminium-zinc (AZ, 55% Al / 43.4% Zn / 1.6% Si)
  • Coating weight: 150 g/m²
  • Coating standard: AS 1397

Typical Applications

  • Roofing sheet
  • Wall cladding
  • Rainwater goods
  • Light structural framing

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