• New produc­tion of screws

WAFO screws Armour­ing mater­i­als
Char­ac­ter­ist­icsMaterial type
 Stellit 6Stellit 12Stellit 1Colmonoy 56WP 88
Hardness of the armour HRC38-42 43-4948-5548-53 56-60
Wear resist­ance✪✪✪✪✪✪✪✪✪✪✪✪✪✪✪
Corro­sion resist­ance✪✪✪✪✪✪✪✪✪✪✪✪✪
Relative wear during assembly
ScrewStellit 6Stellit 12Stellit 1Colmonoy 56Colmonoy 56WP 88

Other armour mater­i­als and special surfaces on request!
Stel­lite® is a trade­mark of Deloro Stellite Holdings Corpor­a­tion.

The WAFO special armour

The bar armour­ing first used by WAFO as a pioneer 30 years ago has become estab­lished world­wide over the years.

The mater­i­als we use, Stellite, have proven them­selves in thou­sands of screws manu­fac­tured by WAFO.

But nothing is so good that it cannot be improved. Our answer to this chal­lenge is WT 50, an armoured material that produces even better results in special cases. WT 50 is an armour material specially adapted by WAFO. Special armour­ing
This material consists of a very hard and there­fore very wear-resist­ant inter­metal­lic compound, which is embedded in a soft nickel matrix. This alloy is char­ac­ter­ised by excel­lent sliding prop­er­ties and very good corro­sion and wear resist­ance over a wide temper­at­ure range.

The hardness is around 50 HRC. We also use our armour material WT 60 as a supple­ment to this.

This is a cobalt-based material with the same prop­er­ties as our WT 50, but with a hardness of approx. 58 HRC.

Thanks to a special plasma welding system, we are able to apply highly wear-resist­ant armour­ing with a Ni-Cr matrix and a high propor­tion of extremely hard tungsten carbides to screws.