Small Square Billet 80x80mm Q235B

Small Square Billet 80x80mm Q235B - Image 3

Small Square Billet 80x80mm Q235B

This Small Square Billet 80x80mm Q235B is a commonly used carbon structural steel product with balanced properties that make it suitable for a variety of small-scale structural and mechanical applications. Its relatively small size and good workability allow for easy processing into various desired shapes and components.

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Product details

The Small Square Billet 80x80mm Q235B is a remarkable carbon structural steel product that has earned its place in a wide range of small-scale manufacturing and construction applications. Compliant with the GB/T 700-2006 standard, this billet combines simplicity, affordability, and excellent workability, making it an ideal choice for fabricating various components where strength and formability need to be well-balanced.

Parameter	Value	Remarks
Standard	GB/T 700-2006	Carbon structural steel standard applicable here
Grade	Q235B	Impact tested at 20℃
Chemical Composition (wt%)
– Carbon (C)	≤0.20	Affects the strength and weldability of the billet
– Silicon (Si)	≤0.35	Helps in deoxidation and has an impact on the steel’s properties
– Manganese (Mn)	≤1.40	Contributes to strengthening and improving toughness
– Phosphorus (P)	≤0.045	Kept at a relatively low level to avoid brittleness
– Sulfur (S)	≤0.045	Minimized to reduce the risk of hot cracking during processing
– Oxygen (O)	As per standard limits	Controlled to ensure good quality
Mechanical Properties
– Yield Strength (ReL)	≥235 MPa	Minimum value indicating its ability to withstand load without excessive deformation
– Tensile Strength (Rm)	370 – 500 MPa	Ensures the overall structural integrity under load
– Elongation (A)	≥26%	Provides good ductility for fabrication processes like bending, forging, etc.
– Impact Energy (Akv)	≥27 J	At 20℃ (longitudinal specimen), important for resisting impact and fracture
– Bending Test	180°	Bend diameter: a (where ‘a’ represents the side length of the square billet, here 80mm) for thickness ≤60mm
Dimensions	80 x 80 mm (square cross-section)	Nominal size; there may be allowable tolerance ranges in actual production as per relevant standards
Length	Customizable according to specific requirements	Usually supplied in certain lengths as per customer orders, common lengths might range from a few meters to several meters
Surface Quality	Generally required to be free from cracks, significant surface defects like deep scratches, and excessive oxidation scale	To meet the quality requirements for further processing or application
Delivery Condition	Hot rolled, cold drawn (depending on specific needs)	Different delivery conditions can be chosen to suit different fabrication or usage scenarios
Typical Applications	Structural components in light construction, small machinery parts, brackets, frames for small equipment, and other applications where relatively lower strength but good formability is required