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Meet Hardox® HiAce, made to resist wear and corrosion
Meet the new ace in corrosion-resistant wear steel for acidic and humid environments. In environments where corrosive wear destroys ordinary steel, Hardox® HiAce stands its ground. Engineered to combat corrosion in the toughest settings—from waste and recycling to wood, pulp and paper—this high-performance wear plate delivers extended service life, lower maintenance costs, and unmatched durability. Count on it to last. Anywhere. Anytime. For as long as the job demands.
Hardox® HiAce—durability that pays off
What’s eating your steel?
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.
A silent and costly intruder
While wear is often obvious, corrosion is stealthy—slow, hidden, and just as destructive. Left unchecked, it leads to accelerated wear, costly failures, eroded budgets, and lost confidence in your equipment. Hardox® HiAce offers superior resistance to corrosive wear and delivers longer service life where other steels fall short.
Hardox® HiAce puts corrosive wear on hold—for years
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.
The real proofs of Hardox® HiAce: 70% reduced maintenance, outperforms stainless steel
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.
Discover the real Hardox® HiAce benefits: resistance, reliability, and real savings
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.
Resists wear—delays corrosion, extends service life
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
Resists waste—get ready to improve your bottom line
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
Resists downtime—one investment, years of productivity
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
Built for industries that wear other steels down
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.
Waste and recycling: Where corrosion and acids rule
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
Wood, pulp and paper: Daily grind of abrasion and moisture
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
Mines and quarries: A world of rock, dust, and impact
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
Made to excel in the workshop and in the field
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.
Success stories: Hardox® HiAce in action around the world
“Designing the container with Hardox® HiAce makes it stronger even with thinner plate.”
— 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.
“Since we switched to Hardox® HiAce in our wood conveyor two years ago, we haven’t noticed any wear so far.”
— 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.
“Using Hardox® HiAce was a first for us, and a positive surprise. No changes to our machines or extra training were needed.”
— 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.
Dimension Range
Hardox® HiAce plate is available in thicknesses of 4.0 - 100.0 mm, and Hardox® HiAce sheet in thicknesses of 3.0 - 4.0 mm. Hardox® HiAce plate is available in widths up to 3350 mm and lengths up to 14630 mm. Hardox® HiAce sheet is available in widths up to 1600 mm and lengths up to 16000 mm. More detailed information on dimensions is provided in the dimension program.
Mechanical Properties
Product
Product
Hardox® HiAce sheet
Thickness
(mmin)
(mmin)
3.0 - 4.00.118 - 0.157
Hardness 1)
(HBW)
(HBW)
425 - 475
Typical yield strength
(MPaksi), not guaranteed
(MPaksi), not guaranteed
1250181
Product
Product
Hardox® HiAce plate
Thickness
(mmin)
(mmin)
4.0 - 100.00.157 - 3.937
Hardness 1)
(HBW)
(HBW)
425 - 475
Typical yield strength
(MPaksi), not guaranteed
(MPaksi), not guaranteed
1250181
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.
Impact Properties
Thickness
(mmin)
(mmin)
Thickness
(mmin)
(mmin)
3.0 - 39.90.118 - 3.937
Transverse test, guaranteed impact energy,
Charpy V 10x10 mm test specimen 1)
Charpy V 10x10 mm test specimen 1)
27 J / -20 °C 2)20 ft-lbs / -4 °F 2)
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.
Chemical Composition (heat analysis)
Product type
Product type
Sheet
C *)
(max %)
(max %)
0.18
Si *)
(max %)
(max %)
0.40
Mn*)
(max %)
(max %)
0.50
P
(max %)
(max %)
0.025
S
(max %)
(max %)
0.004
Cr*)
(max %)
(max %)
4.30
Ni*)
(max %)
(max %)
0.20
Mo*)
(max %)
(max %)
0.20
B*)
(max %)
(max %)
0.002
Product type
Product type
Plate
C *)
(max %)
(max %)
0.26
Si *)
(max %)
(max %)
0.70
Mn*)
(max %)
(max %)
1.60
P
(max %)
(max %)
0.025
S
(max %)
(max %)
0.010
Cr*)
(max %)
(max %)
5.10
Ni*)
(max %)
(max %)
1.50
Mo*)
(max %)
(max %)
0.60
B*)
(max %)
(max %)
0.005
The steel is grain refined. *) Intentional alloying elements.
Carbon Equivalent CET(CEV)
Product type
Product type
Thickness (mmin)
Sheet
3.0 - 4.00.118 - 0.157
Plate
4.0 - 100.00.157 - 3.937
Product type
Product type
Max CET(CEV)
Sheet
0.41 (1.03)
Plate
0.42 (1.08)
Product type
Product type
Typ CET(CEV)
Sheet
0.38 (0.99)
Plate
0.39 (1.01)
Thickness
Tolerances according to Hardox® Thickness Guarantee.
Hardox® Guarantees meet the requirements of EN 10029 Class A for plate, but offer more narrow tolerances. For sheets the guarantees meets the requirements of 1/2 EN 10051.
Length and Width
According to SSAB’s dimension program. For plate, the tolerances are according to SSAB´s mill edge standard or tolerances that conform to EN 10029. For sheet the tolerances conform to EN 10051, tighter tolerances available on request.
Shape
Tolerances according to EN 10029 for plate and according to EN 10051 for sheet.
Flatness
For plate the tolerances are according to Hardox® Flatness Guarantees Class C, which are more restrictive than EN 10029. For sheets the tolerances are according to Hardox® flatness guarantees Class A, which are more restrictive than EN 10051.
Surface Properties
According to EN 10163-2 Class A, Subclass 1.
Delivery Conditions
The delivery condition is Quenched or Quenched and Tempered. Plates are delivered with sheared or thermally cut edges and thicknesses over 80 mm are delivered with mill edge as standard. Sheets are delivered with an as-rolled surface and mill edge as standard.
Delivery requirements can be found in SSAB’s brochure Hardox® Guarantees or www.ssab.com.
Fabrication and Other Recommendations
Welding, bending and machining
Recommendations can be found in SSABs brochures at www.hardox.com or consult Tech Support.
Bendability for plate are according to Hardox® Bending Guarantees Class E. For sheet, the bendability are according to Hardox® Bending Guarantees Class A.
Hardox® wear plate is not intended for further heat treatment. It has obtained its mechanical properties by quenching and when necessary by means of subsequent tempering. The properties of the delivery condition cannot be retained after exposure to temperatures in excess of 250ºC .
Appropriate health and safety precautions must be taken when welding, cutting, grinding or otherwise working on this product. Grinding, especially of primer coated plates, may produce dust with a high particle concentration.