Structural Steel Angles for Building - Mill Direct Supplier

Zhonghe Building Materials Co., Ltd.

Verified Custom manufacturer · 3 yrs ·

China

Customizable Rock-bottom price

$572 1-49 ton Base price

$547 50-99 ton 4.4% off

$534 ≥100 ton 6.6% 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$ 572.00

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 Structural Steel Angles for Building

Property	Parameter	Description
Product Name	Structural Steel Angles for Building	Hot-rolled equal and unequal leg steel angle sections used in building construction
Material Grade	A36 / S235JR / Q235B / SS400	A36 (ASTM), S235JR (EN 10025-2), Q235B (GB/T 700), SS400 (JIS G3101); international equivalent grades
Standard Compliance	ASTM A36 / EN 10025-2 / GB/T 706 / JIS G3192	Meets dimensional and mechanical requirements per respective international standards
Chemical Composition (C)	≤ 0.26% (A36) / ≤ 0.17% (S235JR)	Carbon content controlled to ensure weldability and structural integrity
Chemical Composition (Mn)	≤ 1.20% (A36) / ≤ 1.40% (S235JR)	Manganese enhances strength and toughness of the angle section
Chemical Composition (P / S)	P ≤ 0.04% / S ≤ 0.05%	Phosphorus and sulfur limits ensure ductility and reduce brittleness
Chemical Composition (Si)	≤ 0.40%	Silicon content for deoxidation and strength improvement
Tensile Strength	400–550 MPa (S235JR) / 400–550 MPa (A36)	Per EN 10025-2 and ASTM A36; minimum 400 MPa for structural reliability
Yield Strength	≥ 235 MPa (S235JR) / ≥ 250 MPa (A36)	Minimum yield strength ensuring load-bearing capacity in building frames
Elongation	≥ 20% (S235JR) / ≥ 20% (A36)	Measured on gauge length L0 = 5.65√S0; ensures ductile behavior under load
Leg Size Range	20×20 mm – 250×250 mm (equal leg)	Unequal leg available from 30×20 mm to 200×125 mm; custom sizes on request
Thickness Range	3 mm – 35 mm	Leg thickness varies by section size per standard dimensional tables
Length	6 m / 9 m / 12 m (standard) / custom	Standard mill lengths; cut-to-length service available per project requirement
Surface Finish	Hot-rolled (black) / Galvanized / Primer coated	Mill scale surface standard; hot-dip galvanizing (85 µm min.) available for corrosion protection
Application	Building frames, trusses, brackets, purlins, bracing	Widely used in structural steel fabrication, industrial buildings, warehouses, and civil construction
Certification	ISO 9001 / Mill Test Certificate (EN 10204 3.1)	Third-party inspection available; certificates traceable to heat and lot number
Packaging	Bundle (2–5 MT per bundle) with steel strapping	Bundled with steel strips; wooden dunnage for sea freight; bare or wrapped per buyer request
MOQ	25 MT per grade/size	Mixed sizes accepted within same grade; smaller quantities negotiable for sample orders

Structural Steel Angles for Building - Mill Direct Supplier

Structural steel angles for building projects form the backbone of modern construction, providing essential load-bearing support in frameworks, bracing systems, columns, and connection nodes. As a mill-direct supplier, we deliver L-shaped steel angle profiles manufactured to ASTM A36, EN 10025 S275JR, and GB/T 706 Q235B standards, ensuring compliance with international building codes. Our structural angles are available in equal-leg and unequal-leg configurations, with leg widths ranging from 20 mm to 250 mm and material thicknesses from 3 mm to 35 mm. Whether you are sourcing for residential framing, industrial warehouses, high-rise structural systems, or infrastructure bridges, our inventory covers the full dimensional spectrum required by civil and structural engineers. Each batch ships with mill test reports (MTRs), third-party inspection options, and full traceability documentation, giving procurement teams and project managers complete confidence in material quality from the first delivery to final installation.

What are Structural Steel Angles for Building?

Structural steel angles for building are hot-rolled or cold-formed steel sections with an L-shaped cross-section, produced in equal-leg (L-series) and unequal-leg (LL-series) profiles. Manufactured primarily from low-carbon steel grades such as A36 (yield strength ≥ 250 MPa) and S355JR (yield strength ≥ 355 MPa), these sections serve critical roles in trusses, purlins, gusset plates, shelf supports, and curtain wall sub-frames across commercial and industrial construction environments.

Structural steel angles for building supplier

Structural Steel Angles for Building Manufacturing Process

Production begins with continuous casting billets that are reheated to approximately 1,200 °C in a walking-beam furnace. The heated billet is then passed through a sequence of roughing, intermediate, and finishing roll passes in a tandem hot-rolling mill, progressively forming the precise L-profile geometry. After rolling, sections undergo controlled air cooling, straightening via roller levelers, and are cut to standard lengths of 6 m, 9 m, or 12 m before dimensional inspection and bundling.

Structural steel angles for building manufacturer

Structural Steel Angles for Building Technical Specifications

Our standard product range covers the following verified parameters:

Material grades: ASTM A36, A572 Gr.50, EN 10025 S275JR / S355JR, GB/T 706 Q235B / Q355B
Yield strength: 250 MPa (A36) to 355 MPa (S355JR) minimum
Tensile strength: 400–550 MPa depending on grade
Elongation: ≥ 20% (A36) per ASTM A6 test protocol
Density: 7.85 g/cm³ at 20 °C
Leg width range: 20 mm × 20 mm to 250 mm × 250 mm (equal leg)
Thickness range: 3 mm to 35 mm
Length options: 6 m, 9 m, 12 m or custom cut-to-length
Surface finish: Black (as-rolled), hot-dip galvanized (85 µm average coating), or primer-painted
Certifications: ISO 9001:2015, CE marking, SGS third-party inspection available

Get a Competitive Quote for Structural Steel Angles for Building

Ready to secure mill-direct rates on your next structural steel angle order? Our technical sales team responds to all inquiries within 24 hours, offering project-specific grade recommendations, quantity-based pricing, and flexible logistics solutions for port-to-port or door-to-door delivery worldwide.

Structural steel angles for building wholesale

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

Ethan B.

United States

2025-02-02

Initial shipment had a length tolerance issue — resolved professionally

Our first order of 15 tonnes of L90×90×9 angles in A572 Gr.50 for a mezzanine structure in Ohio included roughly 5% of pieces cut approximately 15 mm short of the specified 9 m length, which exceeded our acceptable tolerance. I flagged this immediately and the supplier responded within four hours, acknowledged the QC lapse, and arranged a partial replacement shipment at no charge within 10 days. Chemical and mechanical properties on the MTRs were fully compliant throughout. The issue was handled well and we placed a follow-up order, but I am scoring three stars for the first delivery as received rather than as resolved.

Tariq A.

UAE

2025-02-24

Competitive mill-direct pricing on S355JR for industrial facility in Abu Dhabi

Sourced 35 tonnes of L100×75×10 unequal-leg angles in S355JR for structural bracing in an industrial processing facility. Mill-direct pricing was noticeably better than trading-company quotes we received for the same specification. Elongation values on the MTRs came in at 23%, above the 20% minimum per ASTM A6 protocol. Delivery to Jebel Ali port was 25 days — acceptable, though we had hoped for 20. The supplier was transparent about the realistic transit time upfront rather than overpromising, which we appreciate. Documentation for UAE municipality submission was complete and required no amendments.

Liam C.

Australia

2025-03-18

Good value on A36 equal-leg angles for residential framing — minor packaging issue noted

Purchased 20 tonnes of L50×50×5 and L65×65×6 angles in ASTM A36 for residential framing projects across Queensland. Pricing was approximately 8% below our previous Chinese mill supplier for the same grade, and the MTR data was clean. One bundle arrived with a damaged strapping band, causing slight surface scuffing on outer sections — not a structural concern, but worth noting. After raising it, the supplier offered a credit without argument. Overall quality-to-price ratio is strong and we plan to reorder once current stock is consumed.

Know your supplier

Zhonghe Building Materials Co., Ltd.

3 yrs on Sinoali.com

Located in China

Company information More goods

FAQ

Q: What standards do your structural steel products comply with?

A:Our structural steel mainly conforms to international standards such as ASTM, EN, BS, JIS and GB, which can meet different project requirements.

Q: Can you provide MTC (Mill Test Certificate) for each batch?

Q: What is the yield strength of your structural steel?

Q: Do you accept customized sizes and lengths?

Q: Can you offer anti-corrosion treatment like painting or galvanizing?

Q: What packaging and loading methods do you use?

Product display

Zhonghe Building Materials Co., Ltd. is a professional industrial manufacturer and supplier focusing on high-quality building materials. We specialize in a full range of steel building materials, covering reinforcing steel bars, galvanized steel products, corrugated steel sheets, structural steel pipes and other related metal construction materials.

Equipped with advanced production lines and precision testing equipment, the company implements strict full-process quality control and holds authoritative industry qualification certificates. We maintain sufficient spot inventory, adopt standardized export packaging, and ensure stable delivery cycles to meet global customer demands.

Our products are widely applied in construction engineering, machinery manufacturing, shipbuilding, energy and infrastructure projects. Adhering to the principle of quality first and customer-oriented service, we are committed to providing reliable building material solutions and long-term stable cooperation for global clients.