Specification :

Forgings made from AISI 4145H or AISI 4145H Modified for stabilizers. Heat treated and machined as requirements from the customer. Can be with or without spirals.

SIZE: Up to 26’’ working OD
MAT: AISI 4145H Mod, AISI4145H
HARDNESS:HB290-340
IMPACT: AKe54J.

We inspect every piece by cutting a piece from its body, every forging should have an inspection report with delivery.

Stabilizer with Hardfacing & thread
The Stabilizer manufactured by our factory has three types according to its body/mandrel, The mechanical performances of the stabilizer are complied with API Spec.7.:
1. Integral Stabilizer
2. Integral Mandrel Sleeve Stabilizer
3. Two Piece Mandrel Sleeve Stabilizer
The body (or mandrel) is made of modified alloy steel, and fully heat treated for prospective hardness, strength and impact strength. Through ultrasonic testing and magnetic testing, it is proved up to flowing grade.
Material 40CrMnMo(4145H)
Hardness HB290-340
Strength b be965 Mpa (D2160mm) b be931 Mpa (D2160mm)
Impact strength AKe54J

The connections are up to API standardwhich have stress relief grooves and are cold rolled. The flank of thread is phosphatized or plated copper, coated with thread dope and equipped with thread protectors.

It is mainly the spiral blades (usually three blades, also can be four blades under the customers’ require) , which rub against the borehole wall. The working surface of the blades is hard faced. The hardfacing type we can provide are HF1000, HF2000, HF3000. It is preferred operation that tungsten carbide inserts are cold inserted into the working surface of blades including its bevels. Braze welding tungsten carbide grains are also adopted according to customers’ require.