When your equipment operates in corrosive or wet environments, failure isn't a question of if —it's when. Corrosive wear doesn’t just damage steel—it accelerates mechanical wear, attacking standard AR steel from the outside in. The result? Unexpected downtime, higher maintenance costs, and reduced productivity. Other materials like stainless steel can resist corrosion—but when corrosion and wear act together, Hardox® HiAce is the toughest corrosion-resistant metal. This latest addition to the powerful Hardox® wear plate family is specifically developed for aggressive applications in industries that face both abrasive and corrosive threats, including municipal and industrial waste management, recycling, wood processing, pulp and paper, waste-to-energy plants, in mining and process industries as well as agriculture and forestry.
Where other materials wear down, Hardox® HiAce stands strong. No matter how corrosive the environment, this corrosion-resistant metal keeps delivering durability, toughness, and peak performance year after year. That’s what it’s made for: to outperform, outlast, and keep your operation moving. Get ready to reap the benefits of these unique properties. With less wear and fewer part replacements, your equipment stays in service longer. Hardox® HiAce doesn’t just endure—it delivers long-term reliability.
Stena Recycling’s large steel drums are used in a wet recycling process, creating a highly corrosive wear environment. The harsh conditions proved too much even for stainless steel, leading to high maintenance costs and frequent disruptions. The solution that turned everything around? Hardox® HiAce.
There’s more to Hardox® HiAce than an unmatched power to meet the most extreme challenges. Its ability to resist goes above and beyond, bringing benefits that affect maintenance costs, workshop efficiency, and overall profitability.
Specifically designed to combat both abrasive wear and corrosion, Hardox® HiAce proves its name in the field as a corrosion-resistant metal. With the same excellent mechanical properties as Hardox® 450, it’s an ace at extending service life in corrosive environments that threaten to eat away at your equipment.
- Proven performance against a variety of corrosive agents
- Up to 2.7x longer life than standard AR450 in corrosive conditions
Performs reliably in freezing temperatures, thanks to high impact toughness
When your steel wears out fast, so does your bottom line. Frequent repairs, early part replacements, and unplanned downtime all drive up total costs. But with Hardox® HiAce, you're not just resisting corrosion—you're reducing unnecessary costs. It's steel that stands up to the toughest conditions, so your business can keep growing and moving forward.
- Higher performance with reduced maintenance input
- Lower total cost of ownership
- Longer maintenance cycles and higher ROI
Every hour of downtime costs more than just money—it disrupts operations and hits productivity. Hardox® HiAce is one of a kind, engineered to keep your equipment running longer in harsh, corrosive environments where traditional steels break down. With a steel like Hardox® HiAce, long-term profitability is protected.
- Minimizes unplanned downtime in corrosive, high-wear conditions
- Extends service life of critical components
- Lowers long-term maintenance and repair costs
In the most punishing environments, steel equipment faces constant attack—from acids, humidity, sulfates, chlorides, ammonia, and other aggressive substances. Household waste, wood chips, manure, potash, and other by-products of industrial processes all pose unique chemical challenges that accelerate corrosion and wear. Hardox® HiAce has a specialized composition that resists corrosive wear in diverse environments. In agriculture, it stands up to ammonia exposure and sulfur-rich fertilizers. In pulp and paper operations, it resists acidic conditions created by chemicals and moisture. And in mining, it performs in the presence of iron ore, chloride-laden copper, bauxite, coal, or other corrosive materials. Whatever the challenge, Hardox® HiAce endures where conventional steels break down.
Corrosion eats steel. Hardox® HiAce fights back.
In waste management and recycling, garbage trucks, containers, tippers, grapples, and plant equipment face relentless exposure to corrosive and abrasive materials. Municipal waste and biomass accelerate wear, quickly breaking down standard AR steel. Hardox® HiAce is specifically engineered for this environment—resisting both corrosion and mechanical abrasion to extend equipment life, reduce unplanned maintenance, and deliver dependable long-term performance.
-- Ideal for wet, corrosive processes and aggressive handling
Wet bark, wood chips, and acidic by-products? No match for Hardox® HiAce.
In pulp and paper mills, equipment faces constant exposure to wet bark, wood chips, and acidic by-products. Unlike conventional steel, which wears down quickly, Hardox® HiAce is engineered for these demanding conditions— delivering superior abrasion resistance and corrosion protection where conventional steel fails. From log and screw conveyors to wood processing equipment, it stands up to both high moisture and chemicals, extending service life, reducing maintenance, and keeping productivity flowing.
--Withstands chemicals and moisture-heavy processes in wood processing
Corrosive minerals, moisture and a hot, humid environment—Hardox® HiAce can take it all.
Mining and quarry equipment faces a relentless assault—from abrasive rock and minerals to corrosive agents and high humidity. It’s an environment that rapidly breaks down conventional steel. Hardox® HiAce is made to withstand this mix of mechanical and chemical wear, delivering outstanding durability and corrosion resistance. From haulers and dump bodies to liners and chutes, it keeps equipment running longer and harder, extends service life and maximizes uptime.
-- Reduces wear and breakdowns in high-impact, high-abrasion environments
Like other Hardox® steel grades, Hardox® HiAce offers reliable, workshop-friendly properties. It’s trusted by metal fabricators for its ease of processing, using the same machinery as for other Hardox® grades. Bendability matches Hardox® 450, welding is equally straightforward, and cutting is smooth and precise. As with all Hardox® steels, Hardox® HiAce comes with guarantees for thickness, flatness, and bending properties—ensuring predictable performance from shop floor to job site.
— Keita Shirakawa, Shirakawa Tekko Corp
Lower weight, less welding, and containers that last up to 2.7 times longer. That’s what Shirakawa Tekko gained when they started building waste containers with Hardox® HiAce steel. As one of Japan’s biggest hooklift container manufacturers, they understand the impact that thinner, lighter, and more durable steel plates can have on payload, fuel efficiency, and reduced emissions.
— Rolf Ebbvick, Trosa Energi
At this biomass power plant in the tiny town of Trosa, Sweden, wood chips with 60% moisture content posed a tough challenge for the critical equipment used in a long energy chain. In the company’s new loading bay, Hardox® HiAce successfully fights a combination of acidic corrosion and moisture that would otherwise eat away at the log conveyor and cause premature wear.
— Volker Stammer, Metallbau Perger
Metallbau Perger GmbH & Co. KG recently introduced Hardox® HiAce wear plate to protect high-wear areas. The plant’s grapple, used to handle biomass from the receiving bay to storage, was upgraded with Hardox® HiAce. The storage area, where moisture is added for combustion control, is now also lined with it, ensuring lasting performance under tough conditions.
| Product | Thickness (mm) | Hardness (HBW) | Typical yield strength (MPa), not guaranteed |
|---|---|---|---|
| Hardox® HiAce sheet | 3.0 – 4.0 | 425 – 475 | 1250 |
| Hardox® HiAce plate | 4.0 – 100.0 | 425 – 475 | 1250 |
1) Brinell hardness, HBW, according to EN ISO 6506-1, on a milled surface 0.5 – 3 mm below surface. At least one test specimen per heat and 40 tons. The nominal thickness of supplied plates will not deviate more than +/- 15 mm from the thickness of the test specimen used for hardness testing. For sheet the Brinell hardness test is according to EN ISO 6506-1 on each heat treatment individual/coil. Hardness is measured on a milled surface 0.3 – 2 mm below surface.
Hardox® wear plate is through-hardened. Minimum core hardness is 90 % of the guaranteed minimum hardness.
1) Impact testing is performed on thicknesses ≥ 6 mm for plate and ≥ 3 mm for sheet. For thicknesses between 3 and 11.9 mm, sub-size Charpy V-specimens are used. The specified minimum value is proportional to the cross-sectional area of the test specimen, compared to a full-size specimen (10 x 10 mm). Impact testing according to ISO EN 148 per heat and thickness group. Average of three tests.
2) Single value minimum 70% of specified average.
| Thickness (mm) | Transverse test, guaranteed impact energy, Charpy V 10×10 mm test specimen 1) |
|---|---|
| 3.0 – 39.9 | 27 J / -20 °C 2) |
| Product type | C¹⁾ (max %) | Si¹⁾ (max %) | Mn¹⁾ (max %) | P (max %) | S (max %) | Cr²⁾ (max %) | Ni²⁾ (max %) | Mo²⁾ (max %) | B²⁾ (max %) |
|---|---|---|---|---|---|---|---|---|---|
| Sheet | 0.18 | 0.40 | 0.50 | 0.025 | 0.004 | 4.30 | 0.20 | 0.20 | 0.002 |
| Plate | 0.26 | 0.70 | 1.60 | 0.025 | 0.010 | 5.10 | 1.50 | 0.60 | 0.005 |
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To establish Sai Steel as a globally recognized, tender-ready manufacturing hub for custom fabrication, industrial components, and engineered structures. Through continuous investment in technology, export infrastructure and partnerships, we aim to lead in quality, precision and service excellence across continents.
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