SMA490CW 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.

SMA490CW Weathering steel chemical composition

Grade	C ≤	Si	Mn ≤	P ≤	S ≤	Cu	Cr	Ni	Ce ≤
SMA490CW	0.18	0.15~0.65	1.40	0.035	0.035	0.30~0.50	0.45~0.75	0.05~0.30	-

SMA490CW Weathering resistant steel tensile property

Min Yield Strength ( MPa )						Tensile Strength	Elongation A%	Impact test
Thickness of plates and sections (mm)								Degree	Energy
≤ 16	＞16- ≤ 40	＞40- ≤ 75	＞75- ≤ 100	＞100- ≤ 160	＞160- ≤ 200	490-610	15 min	0	47

SMA490CW steel delivery condition can be hot rolled, Cold rolled ,AR/CR/N/TMCP/T/QT as the customer request

Relate Steel Type

Steel Type	Standard	Country Code	C(%)	V(%)	Si(%)	Mn(%)	P(%)	S(%)	Cr(%)	Ni(%)	Cu(%)
SMA490CW	4269	CNS	≦0.18		0.15-0.65	≦1.40	≦0.035	≦0.035	0.45-0.75	0.05-0.30	0.30-0.50
SMA480CW	G3114	JIS	≦0.18		0.15-0.65	≦1.40	≦0.035	≦0.035	0.45-0.75	0.05-0.30	0.30-0.50
A588Gr.B	A588	ASTM	≦0.20	0.01-0.10	0.15-0.50	0.75-1.35	≦0.04	≦0.05	0.40-0.70	≦0.50	0.20-0.40

 

Steel Type	Yield stress (Mpa)	Tensile stress (Mpa)	Elongation (%)	Thick (mm)
SMA490CW	≧365	490-610	≧21	≦16
SMA480CW	≧365	490-610	≧21	≦16
A588Gr.B	≧345	≧485	≧21	≦100