We redefine infrastructure and solar mounting systems with high-strength ZAM-coated steel — stronger, lighter, and more sustainable than conventional materials.
Our ZAM-coated high-strength steel achieves a yield strength of ≥700 MPa and tensile strength of ≥750 MPa — that is 3× the strength of standard Q235B steel used in conventional guardrail and solar mounting systems.
High strength enables wall thickness to be reduced to 1.5–2.0 mm without compromising structural integrity or load-bearing capacity. This directly reduces material consumption per linear meter and per mounting unit.
Higher structural strength means guardrails and solar support frames deliver superior resistance to impact, wind loading, and seismic forces — improving overall safety across highway and solar infrastructure.
| Parameter | Standard Q235B | ZAM High-Strength Steel |
|---|---|---|
| Yield Strength | 235 MPa | ≥700 MPa (3×) |
| Tensile Strength | 375 MPa | ≥750 MPa (2×) |
| Typical Wall Thickness | 3.0–4.0 mm | 1.5–2.0 mm |
| Material Usage per Unit | Baseline | -30% to -46% |
Full-Scale Crash Test
Impact Test Results
Test Certificate
Click images to enlarge — All tests conducted per EN 1317 and AASHTO MASH standards
Reducing steel consumption and component weight delivers compounding savings across procurement, logistics, and installation — lowering the Total Cost of Ownership (TCO) for highway and solar projects. For a 100MW PV project, SRPV700D+ZMA brackets alone can save $450,000–$550,000, a reduction of up to 20–25% versus conventional Q235 HDG solutions.
SRPV700D ultra-high strength (yield >750 MPa, 3.2× Q235 steel) enables over 25% structural weight reduction versus conventional systems. This directly reduces raw material procurement cost, with net savings of $180k–$220k per 100MW after the material price premium.
Lightweighting increases container load and unit capacity, cutting logistics fees. Estimated savings: $150k–$180k per 100MW. Fewer shipments also reduce carbon emissions and project scheduling risk.
Lighter components reduce handling and lifting time, accelerating construction progress. Estimated savings: $120k–$150k per 100MW — particularly valuable for remote, offshore, or difficult-terrain deployments.
* Based on 100MW reference project, Q235 HDG baseline, indicative estimates. Actual savings vary by project location, design, and market conditions.
Combining CAPEX savings and zero-maintenance OPEX savings, a 100MW project can see an increase in net income of $800k–$1.2M over 25 years. This translates to an estimated 0.5%–1.2% increase in fully invested IRR (up to 1.2% in coastal or high-corrosion environments), making the project more attractive to investors and lenders.
Container Loading Efficiency: More Units per Container with 25% Lighter Brackets
Click image to enlarge
The Zinc-Aluminum-Magnesium (ZAM) ternary alloy coating (SOZAMC®) delivers world-class durability in the most demanding environments — including coastal, high-salinity, high-humidity, and industrial zones. SGS-certified with over 5,500 hours before first red rust appearance.
Our products have been independently tested by SGS (leading international inspection and certification company) to over 5,000 hours without red rust under neutral salt spray test (ISO 9227:2017) — compared to approximately 800 hours for conventional hot-dip galvanized (HDG) steel. That is more than 6× the corrosion resistance.
ZAM vs HDG Salt Spray Test Comparison
ZAM 5,040hrs — No Red Rust (SGS Report)
Click images to enlarge — SGS Report confirms ISO 9227:2017 compliance, no red rust for over 5,000 hours
Unlike conventional coatings, the ZAM system is self-healing: when the steel is cut or scratched during installation, magnesium and zinc alloy ions migrate to the exposed surface, forming a stable, dense protective film. Under normal cutting and installation conditions, additional treatment is usually unnecessary — eliminating the "cut-edge corrosion" problem common in traditional HDG systems.
Backed by Shougang Group (one of the world's largest steel producers), our ZAM-coated products carry an official 30-year no-red-rust warranty and 35-year no-perforation warranty for C1–C4 environments. This is the longest upstream material warranty in the industry — providing investors and project owners with bankable assurance.
For PV bracket applications, the maintenance advantage is decisive. Conventional Q235 HDG brackets require major overhaul every 6–10 years; SRPV700D+ZMA is virtually maintenance-free for 25 years.
| Parameter | Traditional Q235 HDG Bracket | SRPV700D+ZMA Bracket |
|---|---|---|
| Maintenance Cycle | Every 6–10 years (major overhaul) | 25 years (virtually maintenance-free) |
| 25-Year Maintenance Cost (100MW) | $400k–$600k | Close to Zero |
| Power Generation Loss (25yr) | ~$150k (1% annual downtime) | None — 100% uptime |
| Upstream Warranty | None / Limited | Shougang 30-yr official warranty |
| Salt Spray Resistance | ~800 hrs | 5,000+ hrs (SGS certified) |
| Cut-Edge Protection | High corrosion risk | Self-healing (no treatment needed) |
| Coastal / Offshore Suitability | Moderate | Excellent (C4–C5 rated) |
When steel with ZAM coating is cut or scratched, the zinc-aluminum-magnesium alloy ions dissolve and diffuse toward the damaged area. They react with environmental moisture and oxygen to form a dense, chemically stable zinc-hydroxide and zinc-carbonate protective layer — effectively sealing the cut edge and preventing further oxidation. This self-healing mechanism is what enables the 25-year maintenance-free guarantee.
ZAM Anti-Corrosion Mechanism
Self-Healing Cut Edge Protection
Click images to enlarge
Our manufacturing process is designed to help customers achieve green energy and ESG goals — not just in the operation of solar systems, but in the embedded carbon of the infrastructure itself.
Conventional steel guardrail and solar mounting components require post-process hot-dip galvanizing (HDG) — a high-temperature, energy-intensive, and chemically polluting process. Our ZAM steel is pre-coated prior to cold-forming, completely eliminating this step.
By reducing steel content by up to 46% and eliminating HDG post-processing, our systems significantly reduce the embodied carbon of each project. Combined with fewer transport trips due to lower weight, the overall carbon footprint of procurement and installation is dramatically reduced.
ZAM Manufacturing: No Post-Galvanizing Required
Click image to enlarge
Our products can be engineered to comply with international guardrail and solar mounting standards for global EPC project supply:
Elimination of HDG process reduces energy use by approximately 60% compared to traditional galvanized steel manufacturing.
ZAM-coated steel is 100% recyclable at end of life, supporting circular economy principles and LEED certification goals.
Technical questions from engineers, procurement managers, and EPC contractors.
Our engineers will calculate projected material savings, logistics efficiency, and TCO reduction for your specific project scope — at no cost.
