Galvanized Steel Beams - ASTM Certified Manufacturer |

Zhonghe Building Materials Co., Ltd.

Verified Custom manufacturer · 3 yrs ·

China

Galvanized Steel Beams for Building Construction

Customizable Rock-bottom price

$480 1-49 ton Base price

$459 50-99 ton 4.4% off

$449 ≥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$ 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 Galvanized Steel Beams for Building Construction

Property	Parameter	Description
Product Name	Galvanized Steel Beams for Building Construction	Hot-dip or electro-galvanized structural steel beams used in commercial, industrial, and residential construction
Material Grade	Q235B / Q355B / S235JR / S355JR / A36 / A572 Gr.50	International equivalents: Q235B ≈ S235JR ≈ A36; Q355B ≈ S355JR ≈ A572 Gr.50
Standard Compliance	ASTM A6/A6M, EN 10025-2, GB/T 11263, JIS G3192	Covers hot-rolled H-beams, I-beams, and wide flange sections for structural applications
Chemical Composition	C ≤ 0.22%, Mn ≤ 1.60%, Si ≤ 0.55%, P ≤ 0.035%, S ≤ 0.035%	Low-carbon structural steel chemistry ensuring good weldability and galvanizing compatibility
Tensile Strength	400–550 MPa (Q235B); 470–630 MPa (Q355B)	Per GB/T 700 and GB/T 1591; ASTM A36: 400–550 MPa; A572 Gr.50: 450 MPa min
Yield Strength	≥ 235 MPa (Q235B); ≥ 355 MPa (Q355B)	Minimum yield strength at thickness ≤ 16 mm; decreases with increasing thickness per standard
Elongation	≥ 26% (Q235B); ≥ 20% (Q355B)	Longitudinal elongation at fracture per GB/T 228.1; ensures ductility under structural loads
Beam Section Types	H-Beam, I-Beam (IPE/HEA/HEB), Wide Flange (W-Section)	Available in standard and wide flange profiles; web height 100–900 mm, flange width 50–400 mm
Length Range	6 m – 12 m (standard); up to 18 m (custom)	Standard mill lengths; custom cutting available; tolerance per EN 10279 or GB/T 11263
Galvanizing Method	Hot-Dip Galvanizing (HDG); Electro-Galvanizing (optional)	HDG per ASTM A123 / EN ISO 1461; zinc coating thickness ≥ 45–85 μm depending on steel thickness
Zinc Coating Weight	≥ 305 g/m² (ASTM A123); ≥ 350 g/m² (EN ISO 1461 for t > 6 mm)	Provides corrosion protection life of 20–70 years depending on environment (ISO 9223 category)
Surface Finish	Spangled / Smooth HDG finish; uniform zinc layer, no bare spots	Visual inspection per ASTM A123 Sec. 6; optional chromate passivation or paint-ready surface
Application	Structural frames, floor beams, roof trusses, bridges, industrial buildings, warehouses	Suitable for corrosive environments including coastal, industrial, and high-humidity zones
Certification	ISO 9001:2015, CE Marking (EN 1090-1), Mill Test Certificate (EN 10204 3.1/3.2)	Third-party inspection available; SGS, BV, TÜV reports upon request
Packaging	Steel-banded bundles (2–5 MT per bundle); end caps and dunnage protection	Seaworthy export packaging; fumigation-free wooden dunnage; suitable for container or bulk vessel
MOQ	25 MT per size/grade	Mixed container orders accepted; full container load (FCL) preferred for cost efficiency

Galvanized Steel Beams - ASTM Certified Manufacturer |

Galvanized steel beams for building construction represent one of the most reliable structural solutions available in modern civil and industrial engineering. These beams combine the inherent load-bearing strength of structural steel with a hot-dip zinc coating that delivers outstanding anti-corrosion properties, extending service life well beyond that of uncoated alternatives. In demanding environments — from coastal infrastructure to industrial warehouses — galvanized steel beams serve critical roles in framing systems, floor joists, roof trusses, bridge decks, and multi-story building skeletons. Contractors and project engineers across North America, Europe, and Asia-Pacific increasingly specify ASTM-certified galvanized beams to meet both structural integrity codes and long-term lifecycle cost targets. With zinc coating thicknesses typically ranging from 45 µm to 100 µm depending on application class, these beams deliver decades of maintenance-free performance even in aggressive chemical or high-humidity environments, making them a preferred choice for sustainable building projects worldwide.

What is Galvanized Steel Beams for Building Construction?

Galvanized steel beams for building construction are hot-rolled or welded structural steel sections — including I-beams (W-shapes), H-piles, channels, and angles — that have been coated with a zinc layer through a hot-dip galvanizing process conforming to ASTM A123 or equivalent standards. The zinc metallurgically bonds to the steel substrate, providing a sacrificial barrier that protects the base metal from oxidation, moisture ingress, and chemical attack throughout the structure's operational lifespan.

Galvanized Steel Beams for Building Construction Manufacturing Process

Production begins with hot-rolling billets into precise beam profiles at temperatures exceeding 1,200 °C, followed by surface preparation through acid pickling and flux treatment. The cleaned sections are then submerged in a molten zinc bath maintained at approximately 450 °C, forming a multi-layer zinc-iron alloy coating. Post-galvanizing inspection verifies coating adhesion and thickness uniformity per ASTM A123, with mill certificates issued for every production lot to ensure full traceability and compliance.

Galvanized Steel Beams for Building Construction Technical Specifications

Our galvanized steel beams are manufactured to meet ASTM A36, A572 Grade 50, and EN 10025 S355 standards, with a minimum yield strength of 250 MPa (A36) to 345 MPa (A572 Gr.50) and tensile strength reaching up to 550 MPa. Zinc coating averages 85 µm (600 g/m²) per ASTM A123 Class requirements. Beam depths range from 100 mm to 900 mm, flange widths from 50 mm to 400 mm, and unit weights from 8.9 kg/m to 382 kg/m, accommodating light residential framing through heavy industrial spans.

Galvanized Steel Beams for Building Construction supplier

Get a Competitive Quote for Galvanized Steel Beams

Partner with an ASTM-certified mill supplier offering mill-direct rates, rapid lead times, and full documentation support. Whether your project requires standard stock profiles or custom-fabricated sections, our team provides tailored solutions backed by professional technical consultation and rigorous quality assurance at every production stage.

Galvanized Steel Beams for Building Construction manufacturer

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Competitive pricing for bulk orders
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Galvanized Steel Beams for Building Construction wholesale

Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

Thomas Nguyen

Australia

2025-02-01

Initial coating thickness variance — issue resolved professionally

Ordered 30 tonnes of galvanized H-pile sections (150 mm x 150 mm, AS/NZS 4680 equivalent) for a residential foundation project in Brisbane. Upon inspection, roughly 15% of sections measured 72–74 µm coating — below our 80 µm project minimum. Raised the issue with the support team; they arranged re-galvanizing of the affected sections and reshipped within 10 days at no extra cost. Final material passed our QA checks. The responsive handling of the complaint was reassuring — will consider reordering once lead time and first-pass quality consistency improve.

Priya Menon

UAE

2025-02-22

Competitive pricing for high-humidity environment specification

Sourced 90 tonnes of galvanized I-beams (depth 400 mm, ASTM A572 Gr.50) for a waterfront commercial complex in Dubai. The 85 µm zinc coating is appropriate for our coastal corrosion environment. Pricing per tonne was 8–10% below the two other suppliers we quoted. Lead time of 28 days to Jebel Ali was acceptable though slightly longer than quoted. Documentation package was thorough. Would rate 5 stars if lead time consistency improves — still a strong recommendation for Gulf region buyers needing ASTM-certified material.

David Kowalski

United States

2025-03-16

Good value on bulk W8 beams — minor labelling inconsistency

Purchased 55 tonnes of W8x31 galvanized beams (ASTM A36) for floor joist systems across three light commercial buildings. Coating thickness and yield strength both met spec. Pricing was noticeably better than domestic mill-direct quotes for this volume. Only minor issue: bundle labelling on two skids showed incorrect heat numbers, which required a quick clarification email. Support team corrected documentation within 4 hours. Overall solid value for money and would use again for similar-scale projects.

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.