SMA570W steel

SMA570W Weather Resistant Steel is a type of structural steel that is designed to resist atmospheric corrosion. It is a low-alloy high-strength steel that has good weathering resistance in general conditions.

The composition of SMA570W Weather Resistant Steel typically includes elements such as copper, chromium, and nickel, which contribute to its corrosion resistance properties. These elements react with the atmosphere to form a protective layer of rust, which helps to prevent further corrosion of the steel.

Some of the key properties of SMA570W Weather Resistant Steel include:

1.Corrosion resistance: SMA570W steel is highly resistant to atmospheric corrosion, making it ideal for use in outdoor applications.
2.High strength: The steel has a minimum yield strength of 570 MPa and a minimum tensile strength of 720 MPa, making it a strong and durable material for structural applications.
3.Good toughness: SMA570W steel has good toughness and ductility, allowing it to withstand harsh weather conditions and other forms of stress.
4.Weldability: The steel can be easily welded using common welding methods, making it suitable for use in a variety of construction applications.
5.Formability: SMA570W steel can be easily formed and shaped to meet the specific requirements of different applications.

Chemical composition, standards and properties

Grade :	SMA570W
Classification:	Corrosion-resisting / heat-resisting steel
Standards:	JIS G 3114 :   Hot-rolled atmospheric corrosion resisting steels for welded structure
Applications:	Steel plates/sheets, steel strips in coil and sections. Steel product shall be not coated or stabilized before use. Applicable thickness max. 100 mm

Chemical composition % of grade   SMA570W

C	Si	Mn	P	S	Ni	Cr	Cu
max   0.18	0.15 - 0.65	max   1.4	max   0.035	max   0.035	0.05 - 0.3	0.45 - 0.75	0.3 - 0.5

Mechanical properties of grade SMA570W

Assortment	Yield point or Proof stress	Tensile strength	Elongation	Reduction of area	Charpy impact strength
-	N/mm 2	N/mm 2	%	%	J/cm 2
Plate/Sheet Hot-rolled	420-460	570-720	19-26

SMA570W steel delivery condition can be hot rolled, Cold rolled ,AR/CR/N/TMCP/T/QT as the customer request