VAUTID W4

VAUTID W4

For thin-walled components (30 mm max) that are subject to a combination of impact and abrasion

Due to their extreme hardness, components cast in VAUTID W4 offer outstanding resistance to abrasive wear.  This specification has been adapted to give exceptional ductility, enabling it to handle moderate impact and shock loadings.

VAUTID W4 is a “naturally hard” material, i.e. its wear resistant properties are present as soon as the casting forms. Since no expensive heat treatment is required, products made in genuine VAUTID W4 offer a particularly economical solution.

Because of the material’s high wear-resistance, components made from VAUTID W4 cannot be machined.

Recommended applications:

  • Cast components that are exposed to temperatures up to 400°C.
  • Thin-walled components (< 30 mm) that are subject to abrasion and impact, e.g. liners in crushing plants, or deflector plates.

Mechanical properties
VAUTID use white cast iron materials produced to DIN EN 12513 grades GJN-HV520 – 5.5602 and GJN-HV600(XCr18) – 5.5609 for components exposed to abrasion or to a combination of abrasion and impact. Materials developed in-house by VAUTID are used in impact mills, crushers and conveyor units, commonly installed in recycling plants, asphalt works or power generation plants. Typical components include lining elements, mixer tools, pump parts, hammers and beater bars. VAUTID materials VAUTID W7, VAUTID W72 and VAUTID W72H can all be machined.

VAUTID material Tensile strengt [hN/mm²] Crushing strenght [N/mm²] Elastic modulus
[kN/mm²]
Hardness HB
[HRC]
Fracture toughness KIC [kN/mm²]
GJN-HV520 – 5.5602
(similar to Ni-Hard 1)1
approx. 52
GJN-HV600(XCr18) – 5.5609
(similar to Ni-Hard 4)2
approx. 55
VAUTID W31 450 – 800 620 – 750 165 – 180 approx. 58
VAUTID W41 450 – 800 620 – 750 165 – 180 approx. 52
VAUTID W73 600 – 1.000 2.800 – 3.200 158 – 190 approx. 59 25 – 31
VAUTID W723 600 – 1.000 2.800 – 3.200 158 – 190 approx. 59 25 – 31
VAUTID W72H3 600 – 1.000 2.800 – 3.200 158 – 190 approx. 59 25 – 31
VAUTID W733 600 – 1.000 2.800 – 3.200 158 – 190 approx. 59 25 – 31
VAUTID W78A3 600 – 1.000 2.800 – 3.200 158 – 190 approx. 62
VAUTID W1001 450 – 800 1.800 – 2.800 150 – 170 approx. 59 25 – 31

Condition of delivery: 1 G; 2 G/hardened; 3 hardened

Wear resistance
Wear resistance

In abrasive applications, VAUTID W4 extends service life up to a factor of 3 compared to S235JR

Alloy
Typical microstructure VAUTID wear plate W4

Carbides
Chromium carbides Cr7C3 2200 HV1

Typical microstructure VAUTID W4
1 Carbide hardness is specified in the [HV] unit (Vickers hardness).

Downloads
VAUTID material profile:
VAUTID GUSS Guss-Produkte/Cast products
VAUTID Cast products
VAUTID material profile

Expert advice

For comprehensive technical advice with a personal touch, get in touch with VAUTID:

Sales Austria and Hungary
Phone: +43 7243 520 91 – 0
austria@vautid-group.com

Sales Europe
Phone: +49 711 4404 – 403
europe@vautid-group.com