What is Aashto M270?
October 13, 2020. AASHTO M270 and ASTM A709 are two different types of steel plate that are typically used in bridge building applications, as these materials have mechanical and physical properties ideal for withstanding harsh weather conditions and stresses.
What is ASTM A709?
The ASTM A709 is the Standard Specification for Structural Steel for Bridges and encompasses carbon, high-strength low-alloy, and quenched and tempered alloy steels used as structural plates in the construction of bridges. SSAB offers the following five grades of A709; 36, 50, 50W, HPS 50W and HPS 70W.
What is Aashto M270 50?
Used in Bridges, Buildings, Construction Equipment Machinery, Transmission Towers, Truck Parts, Towers, and Freight Cars. It is a higher yield and tensile strength than A36. Most of our stock is already charpy impact tested and suitable for galvanization.
What is the difference between A572 and A709?
A572-50 which is a High Strength Low Alloy Steel that is most commonly used when higher strength is required, such as in heavy construction. A709-50, which is a High Strength Low Alloy Steel and is an ASHTTO specification, is mainly used in Bridge building and Heavy construction.
Is A709 weathering steel?
Also known as weathering steel, this grade will be used for products that are exposed to all weather elements. Used in Bridge Steel, freight cars, telecommunication towers, and gusset plates. This has atmospheric corrosion resistance that develops over time to external elements.
What is A709 50W steel?
ASTM A709-50W (COR-TEN® Steel) ASTM A709-50W is a standard specification for structural steel primarily in the fabrication of steel bridges. ASTM A709-50W covers high strength, low allow steel structural shapes, plates and bars.
What is gr50?
What is Grade 50 Steel? Grade 50 steel is a high-strength low alloy steel with a minimum yield strength of 50 ksi and minimum tensile strength of 65 ksi. Grade 50 contains more alloying elements than a plain carbon steel and has a greater resistance to atmospheric corrosion.
Is a709 weathering steel?