The steel solution where abrasion, corrosion and heat meet
At steelmaker SSAB, innovation in wear-resistant materials has taken a decisive step forward. Hardox® HiAce is engineered to outperform conventional abrasion-resistant (AR) steels, stainless steels and even ceramics in environments where wear, corrosion and elevated temperatures combine. It offers the same excellent hardness, yield strength and toughness as the renowned Hardox® 450 wear plate.
Unlike traditional materials that often excel only in one dimension, Hardox® HiAce delivers a combination of:
- Superior hardness and strength
- Resistance to corrosive wear
- High performance at high temperatures
- Workshop-friendly fabrication—no special infrastructure needed
Designed for real-world corrosive wear
High- or low-pH environments, combined with abrasion and impact, can create corrosive wear mechanisms that rapidly degrade conventional steels and damage your equipment.
Acids, sulfates, ammonia and salts can oxidize steel surfaces, accelerate wear rates and dramatically reduce service life. In these conditions, higher hardness alone is not enough.
Hardox® HiAce was developed to resist this complex degradation scenario. It provides the hardness needed for abrasion resistance while maintaining structural integrity in chemically aggressive environments.
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That’s a remarkable amount of work hours for a single machine, the Norcar 600 owned by Erkki Rinne is taken well care of, it even has the original Diesel engine.
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Kieran Anders is a forestry contractor working in the lake district. His work involves hand cutting and extracting timber using a skidder and tractor-trailer forwarder.
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It is not possible to eliminate chain shot, but there are simple steps that can be taken to reduce the risk.
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Arwel takes great pride in the fact that the mill has no waste whatsoever, “the peelings are used for children’s playgrounds, gardens and for farm animals in barns in the winter and the sawdust has multiple uses in gardens and farms as well.
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Timber hauliers need to encourage young blood in, and also look after the hauliers we have, we need make the sector a safe and positive place to work.
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Typical industries include:
- Waste collection
- Pulp and paper
- Wood handling
- Recycling
- Mining
- Agriculture
- Transportation
Why stainless steel falls short in corrosive wear environments
Stainless steels perform well in purely corrosive environments. But when abrasion and impact are introduced, their lower hardness limits service life.
According to internal testing at SSAB, Hardox® HiAce outperforms both stainless steel S304 and AR 400 steel in abrasive pH 4 conditions (see table below). “The main reason Hardox® HiAce outperforms stainless steel is its significantly higher hardness and dent resistance,” says Jonas Allebert, Senior Wear Specialist at SSAB.
In the corrosive wear tests, Hardox® HiAce achieved:
- Up to 20% longer service life than stainless steel
- No signs of pitting corrosion
- A more cost-efficient solution compared to stainless steel
Proven performance: 6-year garbage truck field study
SSAB monitored a garbage truck operated by the Swedish company Allmiljö, where Hardox® HiAce flooring replaced stainless steel S304.
Over six years and 106,000 km (65,865 miles):
- Only 40% wear was measured at the most exposed point
- No pitting corrosion was observed
- Floor integrity remained intact
“At this wear rate, the extended service life fully meets the operator’s requirements,” Allebert says.
Pitting corrosion is a common cause of leakage and costly maintenance in garbage trucks using traditional AR steels. Hardox® HiAce eliminated this risk while extending operational life.
Hardox® HiAce can take the heat—at least up to 400°C (752°F)
Equipment operating in elevated temperatures can experience damaging heat spikes that can negatively influence conventional AR steels. Where these steels rapidly lose hardness and wear resistance, Hardox® HiAce maintains its excellent properties and resistance to wear—up to at least 400°C (752°F). This gives you a dependable thermal buffer, long-term stability and reliable performance even during prolonged exposure.
Proven in extreme heat conditions at SSAB’s coke plant
After red-hot coke exits the coal furnaces at SSAB’s Oxelösund mill, it is water-cooled and discharged onto sliding ramps while still extremely hot—creating a challenging environment as the coke is mildly to moderately corrosive in addition to being abrasive.
When one of the ramps required new liner plates, Hardox® HiAce was chosen for its combined resistance to abrasion, impact, corrosion and heat. After months of operation, wear levels were even lower than anticipated.
Other high-temperature applications for Hardox® HiAce in steel mills include quenching wagons, cooling beds, slag tippers and furnace inlet scrapers.
Additional high-temperature applications include:
- Dryer drums and lifter plates in asphalt plants
- Clinker cooler plates and liner plates in cement plants
- Ash-handling equipment and chain conveyors in power plants
- Foundry scrapers and screeners
- Crusher liner plates and clinker hammers
Discover the superior performance of Hardox® HiAce and other Hardox® grades. Speak with our specialists about your wear and heat challenges at Conexpo 2026 in Central Hall.
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Written by loggers for loggers and dedicated solely to the equipment used in forestry operations.