Structural Steel for Commercial Buildings - Mill Direct

Zhonghe Building Materials Co., Ltd.

Verified Custom manufacturer · 3 yrs ·

China

structural steel for commercial buildings

Customizable Rock-bottom price

$560 1-49 ton Base price

$535 50-99 ton 4.5% off

$523 ≥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$ 560.00

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 for Commercial Buildings

Property	Parameter	Description
Product Name	Structural Steel for Commercial Buildings	Hot-rolled and fabricated steel sections used in commercial construction frameworks
Material Grade	A36 / A992 / S275JR / S355JR / Q345B	ASTM A36 (equiv. S235JR), ASTM A992 (W-shapes), EN 10025 S275/S355, GB/T 1591 Q345B
Standard Compliance	ASTM A36, ASTM A992, EN 10025-2, GB/T 1591, JIS G3101 SS400	Meets international structural steel standards for load-bearing commercial applications
Chemical Composition – C	≤ 0.26% (A36) / ≤ 0.23% (S355JR)	Carbon content controls weldability and hardness
Chemical Composition – Mn	0.80–1.20% (A36) / ≤ 1.60% (S355JR)	Manganese enhances tensile strength and toughness
Chemical Composition – P / S	P ≤ 0.04% / S ≤ 0.05%	Low phosphorus and sulfur improve ductility and impact resistance
Chemical Composition – Si	≤ 0.40% (S355JR) / ≤ 0.40% (Q345B)	Silicon acts as deoxidizer and strengthening element
Tensile Strength	400–550 MPa (A36: 400–550 MPa; S355JR: 470–630 MPa)	Per ASTM A36 and EN 10025-2; suitable for high-load commercial structural frames
Yield Strength	≥ 250 MPa (A36) / ≥ 355 MPa (S355JR) / ≥ 345 MPa (Q345B)	Minimum yield strength ensuring structural integrity under design loads
Elongation	≥ 20% (A36, 200 mm gauge) / ≥ 22% (S355JR)	High elongation ensures ductile behavior under seismic and dynamic loads
Available Sections	H-beam, I-beam, Wide Flange (W-shape), Angle, Channel, Hollow Section (RHS/SHS/CHS)	Full range of structural profiles for columns, beams, bracing, and trusses
Dimension Range	Thickness: 6–100 mm; Width: 100–600 mm; Length: 6–18 m (customizable)	Standard mill lengths; custom cutting available per project specification
Surface Finish	Hot-rolled (black), Shot-blasted Sa2.5, Primer-coated, Galvanized (optional)	Surface treatment selected based on corrosion exposure and coating requirements
Application	Office buildings, shopping malls, warehouses, hotels, multi-story frames, industrial facilities	Primary load-bearing structure, secondary framing, mezzanine floors, curtain wall supports
Certification	ISO 9001:2015, CE Marking (EN 1090), Mill Test Certificate (EN 10204 3.1/3.2), BV/SGS/TÜV	Third-party inspection and material traceability documentation available
Packaging	Bundle with steel strapping; ends capped; seaworthy packing for export	Standard bundle weight 2–5 MT; fumigation certificate available for wooden dunnage
MOQ	25 MT per grade/section	Mixed container orders accepted; FOB, CFR, CIF terms available

Structural Steel for Commercial Buildings - Mill Direct

Structural steel for commercial buildings represents the backbone of modern construction, delivering the load-bearing performance, design flexibility, and long-term durability that large-scale commercial projects demand. From multi-story office towers and retail complexes to warehouses and mixed-use developments, structural steel serves critical roles in framing systems, column assemblies, and floor support structures. Unlike alternative materials, steel offers a tensile strength typically ranging from 400 MPa to 690 MPa depending on grade, enabling engineers to design longer spans with reduced material weight. Sourcing structural steel directly from the mill eliminates intermediary markups, ensuring that commercial contractors and developers receive certified, traceable product at cost-effective mill-direct rates. With tightening construction timelines and stricter building codes across global markets, partnering with a reliable structural steel supplier capable of delivering consistent quality and on-time shipments is no longer optional — it is a fundamental requirement for project success.

structural steel for commercial buildings supplier

What is Structural Steel for Commercial Buildings?

Structural steel for commercial buildings refers to hot-rolled or fabricated steel sections — including wide-flange beams (W-sections), hollow structural sections (HSS), angles, channels, and plates — engineered to carry and transfer loads within a building's framework. These products conform to established standards such as ASTM A36, ASTM A992, EN 10025, or GB/T 700, providing predictable mechanical properties essential for structural engineering calculations and code compliance in commercial construction environments.

Structural Steel for Commercial Buildings Technical Specifications

Common grades used in commercial building projects include ASTM A992 (yield strength 345 MPa min, tensile strength 448–621 MPa) for wide-flange sections, and ASTM A36 (yield strength 250 MPa min, tensile strength 400–550 MPa) for general structural applications. Material density is 7.85 g/cm³ at 20°C. Available section sizes range from W4×13 to W44×335 per AISC standards. Mill certifications (MTRs), third-party inspection reports, and dimensional tolerances per ASTM A6/A6M are provided as standard documentation.

structural steel for commercial buildings manufacturer

Key product forms available for commercial building projects:

Wide-Flange Beams (W-Sections): ASTM A992, depths from 100 mm to 1100 mm
Hollow Structural Sections (HSS): ASTM A500 Grade B/C, square, rectangular, and round profiles
Structural Angles & Channels: ASTM A36 / EN 10025 S275JR
Steel Plates: ASTM A572 Grade 50, thicknesses from 6 mm to 150 mm
Galvanized or Primer-Coated Options: Available for corrosion-sensitive applications

Get a Competitive Quote for Structural Steel for Commercial Buildings

Ready to procure structural steel for your commercial building project at mill-direct pricing? Our team provides fast, accurate quotations backed by full material traceability, certified test reports, and flexible delivery schedules tailored to your construction timeline. Contact us now and receive a detailed proposal within 24 hours.

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!

structural steel for commercial buildings wholesale

Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

Daniel Forsythe

Australia

2025-02-01

Initial order had a grade documentation issue — resolved satisfactorily

We ordered 60 tons of structural steel plates specified to ASTM A572 Grade 50 for a commercial building project in Brisbane. When the MTRs arrived, two plates from one heat were certified to Grade 42 rather than Grade 50 as ordered. This created a compliance issue we had to flag immediately. To their credit, the supplier acknowledged the error quickly, provided replacement material certified to the correct grade within 12 days, and covered the additional freight cost. Final material met spec and the project proceeded without further issues. Service recovery was handled professionally. Rating reflects the initial error, not the resolution.

Ahmed Al-Rashidi

UAE

2025-02-22

Competitive pricing for galvanized HSS, delivery window could be tighter

We sourced 180 tons of hot-dip galvanized ASTM A500 Grade B square HSS (150×150×6 mm and 200×200×8 mm) for a logistics warehouse project in Dubai Industrial City. The galvanizing quality met our project spec and the base material MTRs were provided. Our only feedback is that the confirmed delivery date shifted by four days due to port congestion, which required some schedule adjustment on site. The supplier communicated the delay proactively, which we appreciate. Mill-direct pricing was noticeably lower than regional suppliers. We'll use them again but will build in buffer time on future orders.

Fiona Gallagher

United Kingdom

2025-03-16

Good value on W-sections, minor labelling inconsistency on one delivery

Ordered 150 tons of ASTM A992 W10 and W12 wide-flange sections for a commercial building project in Manchester. Overall quality was solid — mechanical properties on the MTRs were consistent and erection went smoothly. We did notice that bundle labelling on one of the four deliveries had a mismatch between the tag and the packing list, which caused a short delay during unloading. The supplier resolved it within a few hours by sending corrected documentation. Pricing was competitive versus local stockholders. Would order again with the expectation that this was an isolated issue.

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.