Creusabro® 8000

A high performance wear and impact resistant steel

Creusabro® 8000 is a high performance wear resistant steel, exhibiting a wear resistance 50% higher than conventional 500HB water quenched steel, combined with excellent weldability and very acceptable workability. Rather than relying exclusively on a high hardness level, properties of Creusabro® 8000 are improved as a result of the combination of an enriched alloying content (chromium, nickel, molybdenum and titanium) and specific heat treatment procedures.

The moderate hardness of Creusabro® 8000 in the as delivered condition makes processing operations like cutting, machining and forming easier and far better than ordinary water quenched steels. When in service, Creusabro® 8000 strongly improves its wear resistance by a surface hardening effect of about +70 HB under the action of local plastic deformations caused by impact with rocks or pressure by the abrasive particles. Creusabro® 8000 is ideal for applications in mines and quarries, cement and steelmaking industries, public works and agricultural machinery. In the toughest industries such as mining and earth moving, the higher resistance to wear and impact abrasion translates into increased service life of wearparts and components made of Creusabro® 8000 against conventional water quenched steels.

As a result, significant costs saving benefits are achieved to plant maintenance budgets. The grade is suitable for all types of abrasion, sliding or impact, dry or wet environments, including operating temperatures up to 350-450°C.

Standards

Creusabro® 8000 is a proprietary and exclusive grade developed by Industeel. There exists no engineering standard for plates intended for wear resistant applications.

Chemical analysis

Max values (weight %)

C S P Mn Ni Cr Mo
≤ 0.28 ≤ 0.005 ≤ 0.018 ≤ 1.6 ≤ 1.0 ≤ 1.6 ≤ 0.40

Mechanical properties

Hardness (HB) YS MPa (ksi) UTS MPa (ksi) Elongation % KCVL – 20°C (-4°F) J (ft.lb) E GPa
470 1250 (181) 1630 (236) 12 44 (32) 205

Guaranteed values (as supplied) Hardness 430-500 HBW

Metallurgical concept

500 HB water quenched steel
Conventional route Passive steel
Creusabro® 8000
Alternative route Active steel
  • Restricted alloy elements (mainly C, Mn, B)
  • Drastic water quenching
  • Fully martensitic structure
  • Specific chemical composition
  • Controlled cooling
  • Martensite + bainite + retained austenite
  • Perfect balance: high wear resistance + improved workability
  • Wear resistance in service is a combination of:
  • work-hardening (TRIP effect)
  • Presence of micro-carbides (chromium, molybdenum, titanium)
  • Delayed tearing of metal particles (super-ductility of the retained austenite).
Wear resistance in service is a result of the hardness in the as delivered state. It is an answer for common applications Creusabro® 8000 is an answer for specific applications.

For more technical details :

 

Creusabro® 8000

Download the complete datasheet


Technical data and information are to the best of our knowledge at the time of publication. However, they may be subjected to some slight variations due to our ongoing research programmes. Therefore, we suggest that information be verified at time of enquiry or order. Furthermore, in service, real conditions are specific for each application. The data presented here are for the purpose of description only, and can be considered as guarantees only when written formal approval has been provided by our company. Industeel reserves the right to change its product range at any time without prior notice.