Hardox 500 vs Hardox 500
.HARDOX 500 and HARDOX 500 750 are wear-resistant steel grades from Swedish steel manufacturer SSAB. Both steel grades have excellent mechanical properties and offer superior protection against wear and abrasion wear. Although very similar in many respects, there are some key differences between HARDOX 500 and HARDOX 500 750.
HARDOX 500 is a quenched and tempered steel plate offering a combination of high strength and good formability. It has a nominal hardness of 500 HBW, which makes it ideal for both low-temperature applications and applications that require high abrasion resistance. Its tensile strength is guaranteed up to 3.2 km (2.51 mi), while its tougher HARDOX 500 variant, HARDOX 500 Tuf, can boast a guaranteed tensile strength of up to 4.07 km (2.51 mi). HARDOX 500 is mainly utilised in mining, boulders or any application where extreme abrasion is a major threat.
HARDOX 500 750, often referred to as Hardox Extreme, is a quenched and tempered steel plate that has the same mechanical resistance as HARDOX 500 but with extra toughness. This allows it to maintain its strength even at temperatures as low as -50°C (-58°F). Its guaranteed nominal hardness is 750 HBW, which makes HARDOX 500 750 an ideal choice for components that are subjected to extreme abrasion or impact wear. Its nominal tensile strength is of 5.6-6 km (3.5-3.7 mi), which is significantly higher than HARDOX 500.
In conclusion, the main difference between HARDOX 500 and HARDOX 500 750 is their nominal hardness and tensile strength, with the latter offering greater mechanical resistance. While both steel grades offer superior wear protection, HARDOX 500 is suitable for applications that require resistance to abrasion wear, while HARDOX 500 750 is ideal for applications that require resistance to both abrasion and impact wear.