ICS 77.140.50                          MTD 4

Reaffirmed 2022

1. Scope

1.1 This standard covers the requirement of continuously hot-dip aluminium-zinc alloy metallic coated steel strip and sheet (plain) specification of 0.25 mm to 1.5 mm thick base steel.

1.2 Sheets and coils are produced by uniformly coating over both surfaces of cold rolled steel coil as base.

1.3 This standard covers requirements for steel grades, coating classes and surface finishes as follows:

a) Normal (N)/Skin-passed (S);

b) Aluminum/Zinc coating classes; and

c) Structural steel grades.

2. REFERENCES

The following standards contain provisions, which through reference in this text constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties to agreement based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below:

513 : 2008 Cold reduced low carbon steel sheet and strip (fifth revision)

1608 : 2005 Metallic materials - Tensile testing at ambient temperature

1956 (Part 4) : 1975 Glossary of terms relating to iron and steel: Part 4 Steel sheet and strip (first revision)

8910 : 1978 General technical delivery requirements for steel and steel products

12860 : 1989 Metallic coatings thickness by X-ray fluorescence technique method - Determination

IS/ISO 16163 : 2005 Continuously hot-dipped coated steel sheet products - Dimensional and shape tolerances