Wedge :Raw material grade is 20CrMnTi , there are two types : 2 and 3 parts . widely suit for 12.70 and 15.24mm anchorage.
it can produced by your drawing or samples , and samples for your testing freely.
Sliped ?
Main reasons you can find :
1)Production technology :
Hardness too high, brittle;
carburization controlled by heat treatment to make the core soft and surface hard , make it tough hardness.
2)Raw material: raw material quality ,internal organizational structure and chemical .
3)The angle suit for anchor head.
4)There are no rust and Debris (sand…) in the anchor head hole’s inside and teeth of wedge .at the same time the PC Strand no
rust.
Barrel :
Size: 12.70mm, 15.24mm,15.70mm , 17.80mm ,21.60mm
Raw material grade is 40Cr, which is better than 45# .
Heat treatment to control hardness, not extrusion.
it can produced by your drawing or samples also , carve your brand letters .