Wind Generators High Strength Steel Anchor Rod
Description:
Wind turbine anchor bolt raw material is 42CrMoA and other equivalent materials. It is purchased from large and qualified steel mills. Each steel round bar went through ultrasonic flaw detection before delivery. According to GB/T 4162 standard, reaches Class A level. We guarantee high strength anchor bolts supplied can meet or even higher than the technical specifications required in bidding documents.
Common specifications：
|
DIA |
Grade |
Length |
|
|
Φ35mm(M36) |
8.8 |
10.9 |
As Clients’ Demands |
|
Φ40mm(M42) |
8.8 |
10.9 |
|
|
Φ45mm(M48) |
8.8 |
10.9 |
|
|
Φ53mm(M56) |
8.8 |
10.9 |
|
Mechanical Properties：
|
Grade |
Dia |
Tensile Strength Rm/MPa |
2% Elongation Limit RP 0.2/MPa |
Stress Under Proof Load SPf/MPa |
Elongation after fracture A/% |
Reduction oF Area after Fracture Z/% |
Rockwell Hardness |
Bolt Length |
-40 ℃ Impact |
|
|
Absorb Energy |
||||||||||
|
/HRC |
mm |
K/J |
||||||||
|
min |
max |
max |
|
|||||||
|
8.8 |
M16~M56 |
830 |
660 |
600 |
12 |
52 |
23 |
34 |
12000 |
27 |
|
9.8 |
900 |
720 |
650 |
10 |
48 |
28 |
37 |
|||
|
10.9 |
1040 |
940 |
830 |
9 |
48 |
32 |
39 |
|||
|
12.9 |
1220 |
1100 |
970 |
8 |
44 |
39 |
44 |
|||
Manufacture Process：
As per different raw materials and demands, process details will be adjusted.
Sample 1.
Raw Material Test — Normalizing — Sand blasting — Drawing & Straightening — Heat Treatment— UT Test — Saw cutting — Chamfer — Polishing — Screw thread — Tensile test — Marking —
QC Test — Anti-corrosion Test — Stock
Sample 2.
Raw Material Test — Heat Treatment — Pealing — Polishing — UT Test — Saw Cutting — Chamfer
— Polishing — Screw Thread — Tensile Test — Marking — QC Test — Anti-corrosion Test — Stock
