ASME SA588 Grade C Hot Rolled Weathering Steel Plate

ASME SA588 Grade C Hot Rolled Weathering Steel Plate conforms to ASME standards and is a high-strength, low-alloy weathering steel with outstanding resistance to atmospheric corrosion.

Its typical yield strength is no less than 345 MPa, tensile strength ranges between 470–630 MPa, and elongation can reach up to 21%, ensuring excellent performance in both load-bearing capacity and ductility for structural applications.

 

Steel grade: SA588 GrC Hot Rolled Steel Sheet

 

 

Standard: ASME SA588/SA588M

 

Thickness: 2mm-450mm

 

 

Width:1000mm-4200mm

 

 

Length: 3000mm-18000mm

 

 

grade	C max	Mn	P max	S max	Si	Ni max	Cr	Cu	V
SA588 grade C	0.20	0.75-1.35	0.04	0.05	0.15-0.50	0.50	0.40-0.70	0.20-0.40	0.01-0.10

 

 

grade	SA588 grade C Weathering Steel Plate
	Tensile Strength (MPa)	Yield Strength (MPa)	% Elongation in 2 in.(50mm) min	Impacting Test Temperature (°C)
SA588 grade C	400-650	250	20	+20,0,-20

 

 

In the manufacturing of air preheaters and economizers, the average annual corrosion rate of SA588 C High Strength steel Plate typically falls below 0.01 mm/year, significantly lower than that of ordinary carbon steel.

 

This enables it to maintain a long service life even in high-temperature flue gas and humid environments, thereby reducing equipment maintenance and replacement frequency.

 

In the manufacturing of railway passenger cars and containers, SA588 C Hot Rolled Weatherig Steel Plate not only enhances overall structural durability but also achieves a 10–15% reduction in self-weight due to its lightweight design, effectively improving transportation efficiency for vehicles and containers.

 

Simultaneously, its service life in rainy and salt-fog-prone atmospheric environments can be extended by 15–20 years compared to traditional carbon steel.

 

In bridge construction and building engineering, SA588 C High Strength Weatherig Steel Sheet delivers outstanding low-temperature impact performance (impact energy ≥27 J at -20°C), ensuring safety in cold regions.

 

Its weather resistance eliminates the need for frequent repainting maintenance on bridge and building facades under long-term exposure, reducing comprehensive maintenance costs by 25–40% and delivering significant economic benefits for large-scale projects.

 

 

Contact now to get SA588 Quote

 

 

Transitioning from a pure trading exporter to an integrated manufacturing service provider, Gnee has undergone multiple strategic transformations.

Between 2010 and 2013, the company focused on enhancing fabrication capabilities by investing in laser cutting and bending equipment, launching precision processing.

 

 Starting in 2016, Gnee took on large-scale custom engineering projects, boosting project management and R&D.

 

 By 2019, Gnee's clients spanned over 100 countries, significantly increasing brand influence internationally.

 

 With overseas offices established in 2021, the company's global footprint improved further.

 

 Looking ahead, Gnee continues to emphasize green sustainability and technological innovation to drive industry advancement.

 

 

 

 

 

 

 

 

 

 

 

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