Square Billet 8x8in ASTM Gr.50

Square Billet 8x8in ASTM Gr.50 - Image 3

Square Billet 8x8in ASTM Gr.50

The Square Billet 8x8in ASTM Gr.50 is a premium high-strength low-alloy (HSLA) steel product engineered to meet the rigorous standards of ASTM A572/A572M. Designed for large-scale, high-load applications, this 8×8-inch square billet combines exceptional strength, durability, and workability, making it an indispensable material for demanding structural projects where performance and reliability are paramount.

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Product details

This Square Billet 8x8in ASTM Gr.50 is a high-strength low-alloy structural steel that offers enhanced performance compared to standard carbon steels. Its specific chemical composition and mechanical properties make it suitable for a wide range of demanding structural applications where the ability to withstand heavy loads while maintaining formability is crucial.

Parameter	Value	Remarks
Standard	ASTM A572/A572M	Standard specification for high-strength low-alloy columbium-vanadium structural steel
Grade	ASTM Gr.50	Specifically designed for applications requiring higher strength than common carbon structural steels
Chemical Composition (wt%)
– Carbon (C)	≤0.23	Helps control the balance between strength and weldability
– Silicon (Si)	≤0.40	Aids in deoxidation and influences the steel’s properties
– Manganese (Mn)	≤1.35	Enhances strength and toughness
– Phosphorus (P)	≤0.04	Kept at a low level to avoid brittleness
– Sulfur (S)	≤0.05	Minimized to reduce the risk of cracking during processing
– Columbium (Nb)	≤0.05	Microalloying element that refines the grain structure and improves strength
– Vanadium (V)	≤0.08	Also contributes to strengthening and improving mechanical properties
Mechanical Properties
– Yield Strength (Fy)	≥345 MPa (≥50 ksi)	Higher minimum yield strength compared to some common grades, suitable for load-bearing in heavy-duty applications
– Tensile Strength (Fu)	450 – 620 MPa (65 – 90 ksi)	Provides good overall load-bearing capacity
– Elongation (in 200 mm, %)	≥18	Offers reasonable ductility for fabrication and forming operations
– Bend Test	180°	Bend diameter depends on the thickness and relevant ASTM requirements for specific specimens
Dimensions	8 x 8 in (square cross-section)	Nominal size; there are specific tolerance ranges defined in the ASTM standards
Length	Customizable according to specific project needs	Can be supplied in various lengths or cut to order to minimize waste
Surface Quality	Generally required to be free from cracks, significant surface defects like deep scratches, and excessive scale	To ensure suitability for further processing and application
Delivery Condition	Hot rolled, normalized, or thermomechanically controlled processed (TMCP)	Different delivery conditions can be chosen based on the intended fabrication and performance requirements
Typical Applications	Structural components in high-rise buildings, large bridges, heavy industrial machinery frames, offshore structures, and other applications where high strength and good workability are essential