HHF has specialized in drills stabilizers since 2005 year and we can do HF1000, HF2000, HF3000 ,HF4000,HF5000 and HF6000
HHF chooses AISI 4145H MOD alloy steel with the best quality as the material, provides customers with integral/spiral stabilizer with better properties. Grain size and metallurgical structure are higher than the requirements of API APEC7-1.We are the main base for stabilizer products in China, and they are also the main exported to Europe, America, South Africa, India and Singapore etc.
When ordering, pls specify:
·Fishing neck OD and length
·Crown OD and length
·The angle from crown to neck
1. We purchase best material from famous steel mill in China, steel making process is EAF or ESR steel.
2.Upon receipt of raw material, HHF's QCP will inspect raw material quality before our production.
3. After each process, QCP will perform inspection, we will record the inspection result and keep the record according to the requirements of QMS.
4.We provide Mill certificate, includes Chemical compostition, Mechanical properties, UT test, MPI test etc
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