QUARD

Wear Resistant steel for extreme performance

Product overview

QUARD is a HIGH-PERFORMANCE WEAR RESISTANT STEEL developed to withstand severe abrasion and impact. Engineered for tough environments, it offers a combination of hardness, toughness, and workability that makes it ideal for the most demanding industries — including construction, mining, recycling, and transportation.
Manufactured with a carefully controlled metallurgical process, QUARD ensures extended service life, reduced downtime, and overall lower maintenance costs compared to conventional steel grades.

Key advantages

– Wide range of hardness levels

  • QUARD 400
  • QUARD 450
  • QUARD PRO*
  • QUARD 500
  • QUARD 550

    • (*) QUARD PRO: a specialized grade combining the optimal balance of wear resistance approaching QUARD 500 while maintaining better bendability and toughness than QUARD 450.

    – Dimensional flexibility

  • Thickness: 3.2 mm – 64 mm
  • Width: 1,500 mm – 3,100 mm


    • – Production quality

  • Tighter thickness tolerances
  • Enhanced flatness
  • Superior surface finish


    • – Extended product life
    QUARD plates significantly outperform standard steels in wear-critical environments, translating into longer-lasting equipment and reduced life-cycle costs.

    Applications

    QUARD is trusted in sectors where wear resistance is critical:

  • Construction and mining: excavators, dump trucks, bulldozers, hoppers, mixers, and many more.
  • Industrial Equipment: used in recycling systems, agricultural machinery, and material-handling equipment.

    • Products range

    • QUARD 400 Dimensions & properties
      • Thickness: 4 – 40 mm
      • Width: 1 500 – 3 100 mm
      • Hardness: HBW = 370 – 430
      • V-notch impact test: 50 J
      • Yield strength: 1 160 MPa
      • Tensile Strength: 1 300 MPa
      • Elongation A5: 10%
    • QUARD 450 Dimensions & properties
      • Thickness: 3.2 – 64 mm
      • Width: 1 500 – 3 100 mm
      • Hardness: HBW = 420 – 480
      • V-notch impact test: 45 J
      • Yield strength: 1 250 MPa
      • Tensile Strength: 1 400 MPa
      • Elongation A5: 10%
    • QUARD PRO Dimensions & properties
      • Thickness: 8 – 25 mm
      • Width: 2000 – 2 500 mm
      • Hardness: HBW = 460 – 500
      • V-notch impact test: 50 J
      • Yield strength: 1 350 MPa
      • Tensile Strength: 1 550 MPa
      • Elongation A5: 8%
    • QUARD 500 Dimensions & properties
      • Thickness: 4 – 64 mm
      • Width: 1 500 – 3 100 mm
      • Hardness: HBW = 470 – 530
      • V-notch impact test: 30 J
      • Yield strength: 1 500 MPa
      • Tensile Strength: 1 700 MPa
      • Elongation A5: 8%
    • QUARD 550 Dimensions & properties
      • Thickness: 6 – 30 mm
      • Width: 1 500 – 3 100 mm
      • Hardness: HBW = 520 – 580
      • V-notch impact test: – J
      • Yield strength: 1 575 MPa
      • Tensile Strength: 1 750 MPa
      • Elongation A5: 7%

    Optimized for workability

    QUARD is developed to combine strength with efficiency in workshop processing, thanks to:

    • Tailored steel chemistry and rolling parameters
    • Controlled heat treatment

    Benefits:

    • Easier cutting, bending, welding, and machining
    • Predictable and repeatable processing
    • Preferred by manufacturers for consistent quality and productivity
    TECHNICAL PROPERTIES NORMS

    Flatness

    EN 10029: class N (standard) и class S

    Thickness tolerance

    Meet and exceed EN 10029.

    Tighter tolerances upon request

    Shape, length, width and thickness tolerances

    Comply with EN 10029

    Surface properties

    Exceed existing market standards EN 10163-2 Class B3

    Proven by industry leaders

    1. Ing. Nikos Alegria

      Metal-Mec

      “QUARD 500 has proven to be an excellent choice for our harrow discs. Its high hardness and wear resistance allow us to deliver superior quality components for demanding agricultural applications like Romeplow and harrows. The material’s properties enabled a smooth forming process, transforming flat plates into fully shaped discs without issues. In the field, QUARD 500 has demonstrated outstanding durability and performance under the toughest working conditions.”

    2. RAÍZEN

      Entreprise

      RAÍZEN, the largest producer of sugar and ethanol – from sugar cane – in the world, performed a complete technical test where some QUARD  (sample of QUARD 450 – 6mm thickness) presented some very good results:
      – QUARD weldability proved very good and simple to be performed
      – QUARD hardness is accord to data sheet specification and low carbon and alloying elements confirm its good weldability
      – We recommend using QUARD as wear resistant material, always respecting the hardness specified for each application

    3. Arndt Kreutzer

      GENERAL MANAGER OF GERGEN

      “It was our target to give our clients a clear advantage. In the collaboration with NLMK we have found a strong partner and with QUARD the suitable material to achieve this!”

    Q Calculator : the ultimate workability calculator

    Working with QUARD or QUEND? This app is made to simplify your job and improve your accuracy.

    Q Calculator guides you in setting the optimal parameters for:

    • Cutting
    • Bending
    • Welding
    • Machining

    Benefits:

    • Easy setup for precise machine configuration
    • Works offline
    Get it on google play Available on the iPhone App Store

    Documents to download

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