VAUTID W72

For components up to 40 mm thick that are subject to a combination of impact and abrasion

The composition of this material is designed for castings with a wall thickness of up to 40 mm. VAUTID W72 offers outstanding wear resistance against abrasion and moderate impact. Parts made in this material can also be annealed, to accommodate simple machining operations.

Recommended applications:

Cast components that are exposed to temperatures up to 400°C.
Cast components that require machining.
Thin-walled components (< 40 mm) that are subject to abrasion and impact, e.g. coatings on dosing feed gates, friction disks.

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