Small Square Billet 130x130mm Q235B

Small Square Billet 130x130mm Q235B - Image 3

Small Square Billet 130x130mm Q235B

The Small Square Billet 130x130mm Q235B empowers engineers and fabricators to tackle a wide range of projects with confidence. Its combination of practical dimensions, consistent performance, and ease of processing makes it a cost-effective solution for both small-batch productions and larger-scale manufacturing.

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Product details

The Small Square Billet 130x130mm Q235B is a versatile carbon structural steel product designed to meet the demands of medium-scale manufacturing and construction projects. Compliant with GB/T 700-2006 standards, this 130x130mm square billet combines robust dimensional stability, consistent mechanical performance, and excellent workability, making it an ideal choice for fabricators seeking a cost-effective solution for components requiring enhanced material volume.

Parameter	Value	Remarks
Standard	GB/T 700-2006	Carbon structural steel standard
Grade	Q235B	Impact tested at 20℃
Chemical Composition (wt%)
– Carbon (C)	≤0.20	Balances strength and weldability for medium-section billets
– Silicon (Si)	≤0.35	Aids deoxidation and improves structural stability
– Manganese (Mn)	≤1.40	Enhances toughness and workability during fabrication
– Phosphorus (P)	≤0.045	Minimized to prevent cold brittleness in medium sections
– Sulfur (S)	≤0.045	Controlled to reduce hot cracking during processing
Mechanical Properties
– Yield Strength (ReL)	≥235 MPa	Ensures reliable load-bearing capacity for medium-scale components
– Tensile Strength (Rm)	370–500 MPa	Provides structural integrity under operational stress
– Elongation (A)	≥26%	Excellent ductility for bending, forming, and welding
– Impact Energy (Akv)	≥27 J	At 20℃ (longitudinal specimen), resists impact fracture
– Bending Test	180°	Bend diameter: 2a (where ‘a’ = 130mm, for thickness >60mm)
Dimensions	130×130mm (square cross-section)	Nominal size; tolerances comply with GB/T 702-2017
Length	6–12m (customizable)	Standard delivery range; longer lengths available on request
Surface Quality	Free from cracks, folds, and excessive scale	Ensures suitability for welding, machining, and coating
Delivery Condition	Hot rolled (standard); cold drawn (optional)	Hot rolled for general applications; cold drawn for tighter dimensional accuracy
Typical Applications	Medium-sized structural components, machinery frames, support brackets, agricultural equipment parts, and custom metal fabrications requiring increased material…