Quard
Description
Quard® is a high-strength steel known for its excellent resistance to abrasion and impact. It is commonly used in applications that require durable and wear-resistant materials, such as construction equipment, mining machinery, and transportation components. Quard® offers a balance of hardness and toughness, making it suitable for withstanding harsh environments and extending the lifespan of the products it is used in.
Product advantages
Quard® abrasion resistant plates are delivered with hardness of 400 HB (Quard® 400), 450 HB (Quard® 450) and 500 HB (Quard® 500), with thicknesses ranging from 3.2 mm to 64 mm and widths from 1,500 to 3,100 mm.Tighter thickness tolerances, superior flatness, better surface finish
The use of Quard® may result in product lifetime being more than tripled when compared to products made from standard grades of steel.
Applications
Quard® plates are designed for construction and mining equipments (excavators, dump trucks, bulldozers, hoppers, mixers, etc.), as well as for machinery in very demand industries (recycling, agriculture, etc).
Products range
Products range
-
Quard® 400 Dimensions & properties
- Thickness: 4 – 50 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: 5 – 20 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%
Workability
Easier to process
The way of making our steel slabs, of rolling our plates and heat treating them gives to Quard® (and Quend®) specific mechanical properties that leads to a superior workability. From the cutting till the machining, surveys prove that our material gets the preferences in the workshops for their excellent behaviour.
Cutting – Bending – Welding – machining
| Indicator | Properties |
|---|---|
|
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 |
They trust us
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RAÍZEN
EntrepriseRAÍZEN, 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 -
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
If you or your colleagues are required to process steels like Quard® and Quend®, this app is for you… Indeed, it will calculate all the optimal parameters for your cutting, bending, welding or machining operations. After a few clicks, you’ll get precise answers to set up your machine and to undertake your task easily. So you can expect a perfect result and hence win in time and money. And as you never know where you might be when you need it, our calculator works also offline. Moreover, you’ll be able to use it in different languages: English, French, Spanish, Russian.
