GNEE' G300 steel is a hot-dipped zinc-coated structural steel with a spangled surface and guaranteedminimum yield strength of 300MPa with good ductility. Suitable for roll forming to a minimum interal diameter of 1t.
APPLICATIONS
Roll-formed sections
House framing
Nail plates
STANDARDS
AS 1397:2011
AS/NZS 1365:1996
G300 Requirements for chemical composition
| Steel grade designation AS 1397 |
Chemical composition (cast analysis), % max. | |||
|---|---|---|---|---|
| Carbon | Manganese | Phosphorus | Sulfur | |
| G300 | 0.3 | 1.6 | 0.1 | 0.035 |
G300 Mechanical property requirements
| Steel grade designation |
Longitudinal tensile test | Transverse bend test | ||||
|---|---|---|---|---|---|---|
| Min. yield strength MPa |
min. tensile strength MPa |
Min.elongation,% | Angle of bend degrees | Diameter of mandrel in terms of test piece thickness (t) | ||
| Lo = 50 mm | Lo = 80 mm | |||||
| G300 | 300 | 340 | 20 | 18 | 180 | t |
G300 Coating Adhesion (180° bend test) requirements
| Steel grade designation | Diameter of mandrel in terms of thickness of product (t) | |||||||
|---|---|---|---|---|---|---|---|---|
| Coating class | ||||||||
| "Z", "ZA", "ZF" and "ZM" | "AZ" and "AM" | |||||||
| Z100, ZA90 ZF80 ZF100 |
Z200, ZA135, ZA180, ZM90, ZM120, ZM150, ZM180 |
Z275, ZA225, ZA275, ZM220, ZM275 |
Z350, ZA350, ZM350 |
Z450, ZA450, ZM450 |
Z600 | AZ150, AM100, AM125, AM150 |
AZ200, AM175, AM200 AM225 |
|
| G300 | 0 | 0 | t | t | t | 2t | t | t |
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