Q235B Angle Steel - GB Certified Mill Direct Factory Supplier

Hongji Profiles Co., Ltd.

Verified Custom manufacturer · 5 yrs ·

China

Customizable Rock-bottom price

$480 1-49 Ton Base price

$459 50-99 Ton 4.4% off

$448 ≥100 Ton 6.7% off

Price validity: subject to market conditions

Supplier's customization ability

Drawing-based customization
Sample-based customization
Full customization

Quantity

Minimum order quantity: 1 Ton

Shipping total: To be negotiated

Subtotal of goods US$ 480.00

Start order request

Payment and delivery

Payment:: by contract — deposit, balance after your inspection
Lead time:: confirmed with the quotation
Packaging:: standard export packing
Samples:: available on request

Product details

Technical Specifications of Q235B Angle Steel

Property	Parameter	Description
Product Name	Q235B Angle Steel	Hot rolled equal/unequal angle steel bar
Material Grade	Q235B	Equivalent to ASTM A36, EN S235JR, JIS SS400
Standard Compliance	GB/T 706-2016, GB/T 700-2006	Also available per ASTM A36/A36M, EN 10056
Carbon (C)	≤ 0.20%	Per GB/T 700-2006 chemical composition
Manganese (Mn)	≤ 1.40%	Ensures weldability and toughness
Silicon (Si)	≤ 0.35%	Deoxidizer element for steel quality
Phosphorus (P)	≤ 0.045%	Controlled to prevent cold brittleness
Sulfur (S)	≤ 0.045%	Controlled to prevent hot shortness
Tensile Strength	370–500 MPa	Per GB/T 700-2006 standard requirement
Yield Strength	≥ 235 MPa (t ≤ 16 mm)	Decreases with increasing thickness per standard
Elongation	≥ 26%	Measured on gauge length of 5.65√So
Size Range (Equal Angle)	20×20×3 mm – 200×200×24 mm	Leg width and thickness per GB/T 706
Size Range (Unequal Angle)	25×16×3 mm – 200×125×18 mm	Custom sizes available upon request
Length	6 m, 9 m, 12 m or customized	Fixed length, random length, or cut-to-length
Surface Finish	Black / Hot-dip Galvanized / Painted	Mill finish as standard; coating per customer needs
Application	Construction, infrastructure, machinery	Steel frames, towers, bridges, shipbuilding, supports
Certification	ISO 9001, SGS, BV, Mill Test Certificate EN 10204 3.1	Third-party inspection available on request
Packaging	Bundled with steel strips, tagged	Seaworthy packaging for export; container or bulk vessel
MOQ	5 Metric Tons	Smaller quantities negotiable for trial orders

Q235B Angle Steel - GB Certified Mill Direct Factory Supplier

Q235B angle steel is one of the most widely specified structural profiles in construction, infrastructure, and general fabrication projects across the globe. Manufactured under the Chinese national standard GB/T 700, this carbon structural steel grade delivers a reliable combination of weldability, formability, and mechanical strength at cost-effective mill-direct rates. As a GB-certified factory supplier, we provide Q235B angle steel in a comprehensive range of sizes—from small equal-leg profiles for light frameworks to heavy unequal-leg sections for large-scale structural applications. Whether you are sourcing material for building frames, transmission towers, bridges, or industrial shelving, our Q235B angle steel meets stringent quality benchmarks with full mill test certificates and third-party inspection support.

Q235B angle steel supplier

What Is Q235B Angle Steel?

Q235B angle steel is an L-shaped hot-rolled profile produced from Q235B grade low-carbon structural steel. The designation "Q" stands for yield strength (qu fu), "235" indicates a minimum yield point of 235 MPa for sections ≤16 mm thick, and "B" denotes the impact test guarantee at 20°C. Compared to Q235A, the B grade offers improved toughness with a guaranteed Charpy V-notch impact energy of ≥27 J at room temperature, making it suitable for structures subject to dynamic or cyclic loading. This angle steel finds extensive application in steel structures, machinery manufacturing, shipbuilding, and power transmission frameworks.

Q235B Angle Steel Technical Specifications

Our Q235B angle steel is produced in strict accordance with GB/T 706 for dimensional tolerances and GB/T 700 for chemical composition and mechanical properties. Below are the key technical parameters:

Property	Specification
Standard	GB/T 700-2006 (Material) / GB/T 706-2016 (Dimension)
Yield Strength (≤16 mm)	≥235 MPa
Tensile Strength	370–500 MPa
Elongation (A₅)	≥26%
Impact Energy (20°C)	≥27 J
Carbon Content	≤0.20%
Manganese Content	≤1.40%
Density	7.85 g/cm³
Equal Leg Sizes	20×20×3 mm to 200×200×24 mm
Unequal Leg Sizes	25×16×3 mm to 200×125×18 mm
Length	6 m, 9 m, 12 m or customized
Surface Treatment	Black, galvanized, or painted per request

The superior weldability of Q235B angle steel—owing to its low carbon equivalent (CEV ≤0.38%)—allows direct arc welding, gas shielded welding, and resistance welding without mandatory preheating, significantly reducing on-site fabrication time and cost.

Q235B angle steel manufacturer

Key Applications of Q235B Angle Steel

This versatile structural profile serves critical roles in numerous industries. In construction engineering, it is used for building frames, roof trusses, and column bracing. For infrastructure projects, Q235B angle steel forms the backbone of transmission towers, communication poles, and highway guardrail supports. In industrial manufacturing, it is fabricated into equipment frames, conveyor structures, and storage rack systems. Its balanced mechanical properties and excellent machinability also make it a preferred choice for shipbuilding brackets, agricultural machinery, and modular steel structures.

Q235B angle steel factory

Get a Competitive Quote for Q235B Angle Steel

Partner with a GB-certified mill-direct factory supplier to secure premium-grade Q235B angle steel at the most competitive pricing. We support OEM cutting, drilling, galvanizing, and custom packaging to match your project requirements precisely.

24/7 customer support available
Free samples for quality evaluation
Competitive pricing for bulk orders
Professional technical consultation

Contact us today to get your free quote within 24 hours!

Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

Michael Torres

United States

2025-02-05

Initial Dimension Issue Resolved Satisfactorily

Ordered 40 tonnes of Q235B unequal angle steel (160×100×14mm). Upon arrival, about 8% of the pieces had leg width tolerances slightly outside GB/T 706 limits. We flagged this immediately, and the supplier responded within 24 hours with a credit note and replacement shipment for the affected material at no extra cost. The replacement batch was perfect. Their willingness to resolve the issue quickly and professionally was reassuring. The remaining 92% of the original order was fully compliant and performed well in our bridge bracket application.

Emily Hargreaves

United Kingdom

2025-02-27

Decent Quality at Competitive Pricing – Minor Packaging Issue

Bought 30 tonnes of Q235B equal leg angles (80×80×8mm) for modular steel structure components. The steel quality itself was spot-on—yield strength, elongation, and surface finish all met expectations per GB/T 700. One bundle had slightly loose strapping upon arrival at port, though no material was actually damaged. For the price point, this represents excellent value compared to equivalent S235JR sections we've purchased from European mills. Would order again with a note to reinforce packaging.

David Patterson

United States

2025-03-21

Good Value for Large Volume Orders

Ordered 150 tonnes of Q235B angle steel (100×100×8mm, 12m lengths) for equipment frame fabrication. Mill-direct pricing was roughly 12% below what we were paying from domestic distributors for equivalent A36 material. Mechanical properties are comparable—tensile strength tested at 420 MPa on our end. Shipping took slightly longer than quoted (38 days vs 30), but the cost savings justified the wait. Quality documentation including MTC was thorough and our QA team accepted everything on first review.

Know your supplier

Hongji Profiles Co., Ltd.

5 yrs on Sinoali.com

Located in China

Company information More goods

Factory Introduction

Hongji Profiles Co., Ltd. is a professional manufacturer and supplier specializing in the R&D, production and sales of high-quality steel profiles. With years of experience in the metallurgical industry, we have earned a solid reputation for reliability, precision and customer-centric service, providing global clients with premium steel profile solutions for diverse industrial and architectural needs.

Our core business covers a full range of steel profiles, including angle steel, channel steel, I-beams, H-beams, C-section steel, Z-section steel, flat steel and custom special steel profiles. These products are widely applied in building structures, bridges, transmission towers, industrial machinery, automotive components and shipping. We strictly control material selection, adopting high-quality steel grades such as S235JR, S355JR, SS400, A36 and Q355 series to ensure excellent mechanical properties, durability and corrosion resistance.

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FAQ

Q: Which international standards do your angle steels meet?

A:They meet international standards such as ASTM A36, EN 10025, and JIS G3101. We provide MTR material certificates and SGS third-party inspection reports to ensure zero returns in the European, American, and Australian markets.

Q: Is anti-corrosion treatment of angle steel suitable for sea freight export?

Q: How do I choose the specifications? Do you support custom sizes?

Q: What are the shipping time and CIF pricing?

Q: What are the trade terms? Is payment secure?

Q: Can you provide processing services for export?

Customizable Rock-bottom price

$480 1-49 Ton Base price

$459 50-99 Ton 4.4% off

$448 ≥100 Ton 6.7% off

Price validity: subject to market conditions