HRB400 Rebar 10mm Q235B

HRB400 Rebar 10mm Q235B

This table outlines the technical specifications of HRB400 10mm rebar (specialized for concrete reinforcement) and Q235B steel (versatile structural material), highlighting their complementary roles in construction projects.

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Product details

HRB400 Rebar 10mm, paired with Q235B structural steel, forms a dynamic combination for modern construction projects, blending high tensile strength with versatile structural support. This 10mm diameter deformed steel bar (HRB400) is engineered for critical reinforcement in concrete structures, while Q235B—a reliable carbon steel—serves as a complementary material for secondary structural components, creating a balanced system for durability and performance.

Parameter	HRB400 Rebar 10mm	Q235B Steel	Unit	Remarks
Material Grade	HRB400 (High-Strength Deformed Reinforcing Bar)	Q235B (Carbon Structural Steel)	—	Both meet Chinese national standards for construction
Chemical Composition	C ≤0.25%, Si ≤0.80%, Mn ≤1.60%, P ≤0.045%, S ≤0.045%, with trace Nb, V, Ti	C ≤0.20%, Si ≤0.35%, Mn ≤1.40%, P ≤0.045%, S ≤0.045%	—	HRB400 includes alloying elements for enhanced strength
Diameter/Section	10	N/A (varies by form: bars, sheets, profiles)	mm	10mm standard diameter for rebar; Q235B available in multiple forms
Weight per Meter	0.617	N/A (varies by section/thickness)	kg/m	Calculated for 10mm rebar; Q235B weight depends on specific form
Length Range	6000–12000 (customizable)	6000–12000 (customizable)	mm	Standard lengths for construction and fabrication
Yield Strength (Minimum)	≥400	≥235	MPa	HRB400 provides higher load resistance for critical structures
Tensile Strength	540–680	375–500	MPa	Typical range at room temperature
Elongation (δ5, Minimum)	≥16	≥26	%	Q235B offers greater ductility for flexible applications
Impact Toughness	≥34 (at 20°C)	≥27 (at 20°C)	J	Longitudinal specimens; resistance to sudden impact loads
Surface Treatment	Deformed (ribbed) for concrete bonding	Mill finish, galvanized, or painted	—	HRB400 ribs ensure strong adhesion with concrete
Manufacturing Standard	GB 1499.2-2018	GB/T 700-2006	—	Compliance with Chinese structural steel regulations
Typical Applications	Reinforced concrete (beams, columns, slabs, bridges, foundations)	General structural components (frames, supports, brackets, light fabrication)	—	Often used together in coordinated construction systems