API 7-1 Stabilizer Forging AISI 4145H with Milled Blades 8
1/2''~26''
We are providing quality stabilizer forgings with delivery
conditions: forged piece, rough machined (Q&T), finish
machined.
Specifications:
-Type: Integral straight or spiral blade stabilizer
-Material: AISI 4145H MOD or Non-magnetic steel
-OD: 6’’~28’’
-Length: max 9m
-Standard: API SPEC 7-1( or as your requested technical
requirement)
-Process: EAF+LF/VD+(ESR)+Forged + Heat treatment + Rough machining
-Surface finishing: Black, Peel, Turned, Polished
-Delivery condition: Hot forged, Heat treatment(Q+T), Rough
machining
-Blade: normal 3~4 blades
Applicable documents:
API Spec. 7-1: specification of rotary drilling equipment;
ISO 10424-1: drilling and production equipment, part 1:
specification of rotary drill stem elements;
ASTM A370: mechanical testing of steel products;
ASTM E587: standard practice for ultrasonic angle beam contact
testing;
ASTM E709: standard practice for magnetic particle testing;
ASTM E23: standard methods for notched bar impact testing of
metallic materials.
Non-destructive examination of forgings:
General
All standard steel forgings shall be examined for both surface
breaking and totally enclosed internal defects. Non-destructive
examination shall take place after the completion of all heat
treatment.
Surface Defects
Outside surface breaking defects:
The outside surface of each standard steel bar or tube shall be
inspected for defects. The preferred methods are either the
Ultrasonic (UT) or Magnetic Particle (MT) methods. As an option,
other methods (such as eddy current) may be used, providing it can
be demonstrated that the system and procedure are capable of
detecting indications described in Table A.16.
Inside surface breaking defects:
The inside surface of each tube shall be inspected for defects by
the ultrasonic (UT) angle-beam (shear wave) method. This
requirement applies only to materials that are identifiable as
tubes before heat treatment. Materials that are heat-treated are
not considered tubes, for inspection purposes.
| Size | Crown OD | Neck OD | ID | Neck Length | Crown Length | Overall Length | Blade Width | Angel | Radius |
| 8 1/2'' x 6 1/2'' x 2 13/16'' x 100'' | 8 1/2'' | 6 1/2'' | 2 13/16'' | 30'' | 18 | 100'' | 2 3/8'' | 30° | 4'' |
| 12 1/4'' x 8'' x 2 13/16'' x 100'' | 12 1/4'' | 8'' | 2 13/16'' | 30'' | 18 | 100'' | 3 1/2'' | 30° | 4'' |
| 12 1/4'' x 8 1/4'' x 2 13/16'' x 100'' | 12 1/4'' | 8 1/4'' | 2 13/16'' | 30'' | 18 | 100'' | 3 1/2'' | 30° | 4'' |
| 14 3/4'' x 8 1/2'' x 2 13/16'' x 100'' | 14 3/4'' | 8 1/2'' | 2 13/16'' | 30'' | 20 | 100'' | 3 1/2'' | 30° | 4'' |
| 14 3/4'' x 9 1/2'' x 3'' x 100'' | 14 3/4'' | 9 1/2'' | 3'' | 30'' | 20 | 100'' | 3 1/2'' | 30° | 4'' |
| 16'' x 9 1/2'' x 3'' x 100'' | 16'' | 9 1/2'' | 3'' | 30'' | 20 | 100'' | 3 1/2'' | 30° | 4'' |
| 17 1/2'' x 9 1/2'' x 3'' x 100'' | 17 1/2'' | 9 1/2'' | 3'' | 30'' | 18 | 100'' | 3 1/2'' | 30° | 4'' |
| 22'' x 9 1/2'' x 3'' x100'' | 22'' | 9 1/2'' | 3'' | 30'' | 18 | 100'' | 4'' | 30° | 4'' |
| 26'' x 9 1/2'' x 3'' x 100'' | 26'' | 9 1/2'' | 3'' | 30'' | 18 | 100'' | 4'' | 30° | 4'' |
| 26'' x 9 1/2'' x 3'' x 116'' | 26'' | 9 1/2'' | 3'' | 30'' | 24 | 116'' | 4'' | 30° | 4'' |
| Stabilizer forgings can be designed according to customer's special
requirements. |
