15.24mm 3 Pieces Strand Wedges For Post Tension System
Barrel raw material
|
40Cr
|
Wedge raw material
|
20CrMnTi;20CrMn5
|
Hardness of anchor(HRB)
|
25-35
|
Wedge Surface Hardness
|
HRA79-84
|
Wedge Core Hardness
|
HR38-46
|
Carburization Layer Depth
|
0.35-0.6mm/0.6-0.8mm
|
Anchor Efficiency Coefficient η a
|
η≥0.95
|
With-draw of wedge after stressing
|
≤6mm
|
Tempered
|
1-4
|
Retained Austenite
|
1-4
|
Inspection of Appearance
|
Tooth Shape without Defect,Bad Teeth,Variant
|
Standard
|
GB/T2301-2004
|