Galvanized Steel Frame for Buildings - Mill Direct

Zhonghe Building Materials Co., Ltd.

Verified Custom manufacturer · 3 yrs ·

China

Galvanized Steel Frame Materials for Buildings

Customizable Rock-bottom price

$720 1-49 ton Base price

$688 50-99 ton 4.4% off

$673 ≥100 ton 6.5% 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$ 720.00

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 Galvanized Steel Frame Materials for Buildings

Property	Parameter	Description
Product Name	Galvanized Steel Frame Materials for Buildings	Hot-dip or electro-galvanized structural steel sections used in building frame construction
Material Grade	S250GD / S350GD / DX51D / Q235 / Q345	International equivalents: ASTM A653 Grade 33/50, EN 10346 S250GD+Z, JIS G3302 SGCC
Standard Compliance	ASTM A653 / EN 10346 / JIS G3302 / GB/T 2518	Meets hot-dip galvanized steel sheet and coil standards for structural applications
Chemical Composition (C)	≤ 0.20%	Low carbon content ensures good weldability and formability
Chemical Composition (Mn)	≤ 1.50%	Manganese enhances strength and hardenability of the base steel
Chemical Composition (P / S)	P ≤ 0.030% / S ≤ 0.030%	Controlled phosphorus and sulfur for improved toughness and reduced brittleness
Chemical Composition (Si)	≤ 0.50%	Silicon content controlled to maintain coating adhesion quality
Tensile Strength	330 – 560 MPa	Per EN 10346 / ASTM A653; varies by grade (e.g., S250GD: ≥ 330 MPa, S350GD: ≥ 420 MPa)
Yield Strength	250 – 350 MPa	Minimum yield strength: S250GD ≥ 250 MPa, S350GD ≥ 350 MPa per EN 10346
Elongation	≥ 18% – 22%	Measured over 80 mm gauge length; ensures ductility for frame bending and forming
Zinc Coating Weight	Z100 – Z275 (100 – 275 g/m²)	Both sides combined; Z275 recommended for structural outdoor building frames
Dimension Range	Thickness: 0.3 – 6.0 mm; Width: 600 – 1500 mm; Length: 1000 – 12000 mm	Custom cut-to-length, coil, C/Z/U-section profiles available upon request
Surface Finish	Regular Spangle / Minimized Spangle / Zero Spangle	Smooth galvanized surface; passivation or oiled treatment available for corrosion protection
Application	Light gauge steel framing, wall studs, roof trusses, purlins, floor joists, curtain wall frames	Widely used in residential, commercial, and industrial building construction
Certification	ISO 9001 / CE Marking / SGS / BV	Third-party inspection and mill test certificates (MTC) available per EN 10204 3.1
Packaging	Coil / Bundle / Pallet; wrapped with waterproof paper and steel strip	Export seaworthy packaging; coil weight typically 3 – 10 MT per coil
MOQ	5 Metric Tons per size/grade	Mixed grades accepted for full container load (FCL) orders; sample orders negotiable

Galvanized Steel Frame for Buildings - Mill Direct

Galvanized steel frame materials for buildings represent one of the most reliable structural solutions available to modern construction engineers and project developers worldwide. Combining the inherent mechanical strength of structural steel with a protective zinc coating, these frame systems deliver outstanding anti-corrosion properties that extend service life well beyond conventional untreated steel alternatives. Whether applied in residential housing, commercial complexes, industrial warehouses, or prefabricated modular structures, galvanized steel framing serves critical roles across virtually every construction sector. Architects and contractors consistently choose mill-direct galvanized steel frames because they offer dimensional precision, consistent coating thickness, and compliance with internationally recognized standards such as ASTM A653, EN 10346, and AS 1397. Sourcing directly from the mill eliminates unnecessary intermediary markups, ensuring buyers receive premium grade materials at cost-effective rates without compromising on structural integrity or surface quality.

What is Galvanized Steel Frame Materials for Buildings?

Galvanized steel frame materials for buildings are structural components — including C-sections, Z-purlins, I-beams, hollow sections, and light gauge steel studs — manufactured from hot-dip or electro-galvanized steel. The zinc coating, typically ranging from 60 g/m² to 600 g/m², forms a metallurgical bond with the base steel, providing a sacrificial barrier against moisture, oxidation, and chemical exposure in demanding construction environments.

Galvanized Steel Frame Materials for Buildings Manufacturing Process

Production begins with cold-rolled or hot-rolled steel coils that are continuously passed through a molten zinc bath maintained at approximately 450°C in the hot-dip galvanizing process. Coating adhesion is controlled via air-knife wiping to achieve precise zinc layer thickness. Finished coils are then roll-formed or press-braked into specific frame profiles, cut to length, and inspected per ASTM A653 or EN 10346 dimensional tolerances before dispatch.

Galvanized Steel Frame Materials for Buildings supplier

Galvanized Steel Frame Materials for Buildings Technical Specifications

Standard galvanized steel frame materials offer a base metal yield strength of 250–550 MPa and tensile strength of 330–600 MPa depending on grade. Zinc coating classes range from Z60 (60 g/m²) to Z600 (600 g/m²). Profile thickness typically spans 0.4 mm to 6.0 mm, with section widths from 41 mm to 400 mm. Steel density is 7.85 g/cm³ at 20°C, and elongation at break meets a minimum of 14% per ASTM A653 Grade 33.

Galvanized Steel Frame Materials for Buildings manufacturer

Get a Competitive Quote for Galvanized Steel Frame Materials for Buildings

Partner with our mill-direct supply chain to access premium galvanized steel frame materials for buildings at highly competitive bulk pricing. Our technical team is ready to match exact project specifications, certify material compliance, and coordinate reliable global logistics for your next construction project.

Galvanized Steel Frame Materials for Buildings wholesale

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

Priya N.

United States

2025-02-02

Initial coating thickness variance — issue resolved satisfactorily

Ordered 40 tonnes of galvanized Z-purlins, 1.6 mm, Z350 coating for a commercial roofing project in Florida. Upon arrival, our QC team identified that approximately 8% of profiles showed coating thickness slightly below the Z350 specification — measuring closer to Z275 in isolated spots. We raised this immediately and the supplier's technical team responded within 24 hours, arranged third-party re-inspection, and replaced the non-conforming batch within 12 days at no additional cost. ASTM A653 compliance was confirmed on the replacement material. The resolution process was handled professionally. Would consider reordering with tighter pre-shipment inspection requested upfront.

Ahmed K.

UAE

2025-02-24

Competitive bulk pricing for Z600 heavy-duty frames

Sourced 90 tonnes of heavy-gauge galvanized I-beams and hollow sections, 4.0 mm to 6.0 mm thickness, Z600 coating class for a coastal industrial facility in Abu Dhabi. The high-zinc specification was essential given our marine environment and the material performed as certified. Mill test reports confirmed 500 MPa tensile strength. Pricing for Z600 grade was considerably more competitive than regional suppliers. Delivery to Jebel Ali took 24 days. We'd rate 5 stars but negotiating final freight terms took longer than expected. Technical support on coating selection for saline environments was genuinely knowledgeable.

Linda C.

Australia

2025-03-18

Good value on AS 1397 compliant material, minor paperwork delay

Purchased 60 tonnes of light gauge galvanized steel studs, 0.55 mm thickness, Z275 coating for residential framing in Queensland. Material quality was solid — AS 1397 compliance confirmed and zinc coating adhesion was uniform on inspection. Pricing was noticeably better than local distributors for this volume. The only issue was a slight delay receiving the full compliance documentation pack — took 3 extra days. Support team resolved it promptly once flagged. Delivery to Brisbane took 28 days. Overall good experience and we'll likely return for our next project pending final budget approval.

Know your supplier

Zhonghe Building Materials Co., Ltd.

3 yrs on Sinoali.com

Located in China

Company information More goods

FAQ

Q: What is the zinc coating weight of your galvanized steel?

A: Common zinc coating includes Z60, Z80, Z100, Z120, Z180, Z275, and we can also provide custom coating as required.

Q: What types of galvanized steel do you supply for construction?

Q: What is the difference between GI and PPGI?

Q: Do you offer customized sizes and lengths?

Q: How do you package galvanized steel to prevent rust during shipment?

Q: Can you provide mill test certificates (MTC) for galvanized steel?

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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.