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Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of deformed steel bar in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.

Deformed Steel Bar

Deformed Steel Bar-also known as Rebar, Reinforcing Bar, Ribbed Steel Bar, or Reinforcement Steel Rod-is the most widely used structural reinforcement material in concrete construction. Manufactured according to ASTM A615/A706, BS 4449, GB/T 1499.2, and ISO 6935, our Deformed Steel Bars provide superior tensile strength, optimized rib patterns for bonding with concrete, and excellent seismic performance for civil, industrial, and infrastructure projects. Available in grades Grade 40/60, ASTM A615 Grade 60, BS 4449 B500B/B500C, HRB400 and HRB500, we supply full diameter ranges from 6 mm to 40 mm, suitable for global B2B construction and engineering procurement.

Keywords: Deformed Steel Bar, Rebar, Reinforcing Steel Bar, Steel Reinforcement Bar, Ribbed Rebar, ASTM A615 Grade 60, ASTM A706, BS 4449 B500B, HRB400, HRB500, Construction Steel Bar

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Products Description

HRB335: Ordinary hot-rolled steel bars specified in the national standard GB1499.2-2018, with a tensile strength of 335MPa.

HRB400: Ordinary hot-rolled steel bars specified in the national standard GB1499.2-2018, with a tensile strength of 400MPa.

HRB500: Ordinary hot-rolled steel bars specified in the nationalstandard GB1499.2-2018, with a tensile strength of 500MPa.

HPB300: cold-drawn steel bar specified in the national standard GB1499.2-2007,with a tensile strength of 300MPa.

HPB335: cold-drawn steel bar specified in the national standard GB1499.2-2007, with a tensile strength of 335MPa.

HRB

Features: Formed through high-temperature rolling, with ribbed surfaces to enhance bonding strength with concrete.

Common Grades:
HRB335 (Old national standard, phased out): Yield strength 335 MPa, tensile strength 490 MPa.
HRB400 (GB/T 1499.1): Yield strength ≥400 MPa, tensile strength ≥540 MPa, strength-to-yield ratio ≥1.25.
HRB500: High-strength grade with yield strength ≥500 MPa, used for super high-rise buildings or long-span structures.
HRB400E/HRB500E: Seismic-resistant reinforcing steel, containing microalloy elements such as vanadium and niobium, with excellent seismic performance (e.g., tensile strength margin ≥10%).

HPB

Features: Smooth surface, mainly used for stirrups or small components.

Representative Grade: HPB300 (GB/T 1499.2): Yield strength ≥300 MPa, tensile strength ≥420 MPa.

Key Features

High Strength

Yield strength exceeding 420MPa, suitable for demanding structural applications.

Corrosion Resistance

Optional galvanized or epoxy-coated surfaces for enhanced longevity.

Superior Weldability

Compatible with pressure welding, fusion welding, and other techniques.

Diverse Surface Treatments

·Plain Bar: Basic anti-rust treatment.

·Ribbed Bar: Enhances concrete bonding strength.

·Epoxy Coated: Resistant to salt spray corrosion, suitable for coastal areas.

·Hot-Dip Galvanized: Provides extended service life.

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Product Details

·Rebar refers to steel used in reinforced concrete and prestressed reinforced concrete, with a cross-section that is typically round or sometimes square with rounded corners. It includes plain bars, ribbed bars, and twisted bars.

·Rebar for reinforced concrete refers to straight or coiled steel used for reinforcement in concrete structures. Its shape is categorized into plain bars and deformed bars, and it is delivered in straight lengths or coils.

·Plain bars are essentially small round or coiled steel made of ordinary low-carbon steel. Deformed bars are characterized by ribs on their surface, usually featuring two longitudinal ribs and transverse ribs evenly distributed along their length. The transverse ribs come in three shapes: spiral, herringbone, and crescent. The nominal diameter is expressed in millimeters. The nominal diameter of a deformed bar corresponds to the nominal diameter of a plain bar with an equivalent cross-sectional area.

Products Specifications

Category	Specification	Metric	Imperial	Notes
Diameter Range	Standard Diameters	6 mm	0.24 in
		8 mm	0.31 in
		10 mm	0.39 in
		12 mm	0.47 in
		14 mm	0.55 in
		16 mm	0.63 in
		20 mm	0.79 in
		25 mm	0.98 in
		28 mm	1.10 in
		32 mm	1.26 in
		36–40 mm	1.42–1.57 in	Large-diameter
Standard Length	Straight Length	6/9/12 m	19.7/29.5/39.4 ft	Custom available
	Coil Form	6–12 mm	-	For small diameters
Steel Grades	ASTM	ASTM A615 Gr40/Gr60	-	Carbon steel
		ASTM A706 (Weldable)	-	Low-alloy
	BS Standard	B500A/B500B/B500C	-	BS 4449
	Chinese Standard	HRB335 / HRB400 / HRB500	-	GB/T 1499.2
	ISO	ISO 6935 HRB400E	-	Enhanced seismic
Mechanical Properties	Yield Strength	335–500 MPa	-	By grade
	Tensile Strength	490–630 MPa	-
	Elongation	≥12–16%	-
	Bend Test	No cracks	-	180°/90° bend
Surface Type	Rib Pattern	Two/Three longitudinal ribs	-	Improved bonding
	Coating Options	Black / Epoxy-coated / Galvanized	-	Anti-corrosion

Product Name	Brand	Specification	Implementation Standards
Rebar	HRB400,HRB500	8-40	GB 1499.2-2007
Earthquake resistant rebar	HRB400E,HRB500E	8-40	GB 1499.2-2007
British standard rebar	460B,B500B,B500C	8-40	BS4449-1997/BS4449-2005
Korean standard rebar	SD400,SD500,SD600	8-40	KS D3504:2016
American standard rebar	Gr40,Gr60,Gr75,Gr80	8-40	ASTM A615/A615M-2016 ASTM A706/706M-2016
Australian standard rebar	500N	12-36	AN/NZS4672-2001

Products chemical composition

Steel grade	C%≤	Si%≤	Mn%≤	P%≤	S%≤	Cr%＞	Ceq≤
HPB300	0.17-0.25	0.40-0.80	1.00-1.60	0.045	0.045	0.3-0.4	0.52
HRB400	0.17-0.25	0.20-0.80	1.20-1.60	0.045	0.045	0.3-0.4	0.54
HRB500	≤0.25	≤0.80	≤1.6	0.045	0.045	0.3-0.4	0.55
Gr.60	≤0.30	≤0.40	≤1.00	0.050	0.050	0.3-0.4

Common Applications

●Construction Engineering: Used to reinforce concrete structures such as beams, columns, slabs, walls, and foundations, enhancing the strength and durability of buildings.

●Bridge Engineering: Used in bridge piers, decks, and crossbeams to improve load-bearing capacity and seismic performance.

●Road Engineering: Used to reinforce concrete pavements, preventing cracking and deformation.

●Tunnel Engineering: Used in tunnel linings and support structures to ensure stability and safety.

●Hydraulic Engineering: Used to reinforce hydraulic facilities like dams, reservoirs, and channels, improving resistance to water pressure and erosion.

●Industrial Construction: Used in concrete structures of factories and warehouses to enhance wind, seismic, and impact resistance.

●Underground Engineering: Used in underground structures such as parking lots and subway stations to reinforce stability and safety.

●Precast Components: Used in precast concrete elements like walls, stairs, and pipes to improve strength and integrity.

Inspection

■Visual Inspection:
Check the surface of the reinforcing steel for cracks, rust, deformation, or other defects.
Ensure the dimensions, shape, and surface quality of the reinforcing steel meet standard requirements.

■Mechanical Performance Testing:
Tensile Test: Measure the tensile strength, yield strength, and elongation of the reinforcing steel.
Bend Test: Evaluate the bending performance of the reinforcing steel to ensure it can withstand bending operations during construction.
Impact Test: Assess the toughness and impact resistance of the reinforcing steel.

■Chemical Composition Analysis:
Use spectroscopic or other chemical analysis methods to detect the chemical composition of the reinforcing steel, ensuring it complies with relevant standards.

■Dimensional and Weight Inspection:
Measure the diameter, length, and weight of the reinforcing steel to ensure it meets design requirements and standard specifications.

■Non-Destructive Testing:
Ultrasonic Testing: Detect internal defects in the reinforcing steel, such as cracks or voids.
Magnetic Particle Testing: Used to identify minor surface cracks and defects in the reinforcing steel.
Radiographic Testing: Use X-rays or gamma rays to examine the structural integrity of the reinforcing steel.

■Third-Party Certification

SGS / BV / TUV inspection supported

Mill Test Certificate (EN 10204 3.1)

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Company Introduction

We are always at your service when you need

Xi'an Dongmeng Steel Co., Ltd. is a well-known enterprise in the international steel market.which is certifed by SGS Group. lt focuses on providing high-quality steel bars, steel pipesand steel coils to customers around the world, Since its establishment, we have beenadhering to the business philosophy of"quality-oriented, integrity-first", constantly pursuingexcellence and innovation, and committed to building a world-eading steel supply chainservice system. Our customers are all over the world.