API 7-1 drilling tool 4145H heavy weight drill pipe API 7-1 Spec manufacturer from China XI'AN KINGWELL OILFIELD MACHINERY CO.,LTD

API 7-1 drilling tool 4145H heavy weight drill pipe

Price:	1.0 USD
Payment Terms:	T/T,L/C
Place of Origin:	Shaanxi, China (Mainland)


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Product Detail

Model No.: API 7-1 Spec

Production Capacity: 1000 tons/month

Delivery Date: 20 days after received adva...

Steel Grade: AISI 4145H

Machine Type: Drilling Equipment

Coating: Black painting / Vanish pai...

Use: Well Drilling

Means of Transport: Ocean,Land,Air

Packing: Standard export package

Standard: API 7-1 Spec

Size: 2-3/8"-6-5/8"

Processing Type: Heavy Weight Drill Pipe

Marking: According to standard or ac...

Inspection: Third party accept

1. API 7-1 Heavy weight drill pipe, HWDP
2. Material: AISI 4145H
3. OD: 3 1/2 --6 5/8"
4.Box Bore Back x Pin Ring Groove

Introduction:

Kingwell is a professional manufacturer of medium and large forgings based in mainland China. We mainly focus on the manufacturing of big size special steel forging which are widely used in great equipment manufacturing industry of oil, electricity, chemical, shipping, metallurgy, machinery and military.

Application of product:
Drill pipe is a portion of the overall drill string. The drill string consists of both drill pipe and the drill stem which is the tubular portion closest to the bit or downhole assembly. Drill pipe and drill stems can be differentiated in that the drill pipe is quite flexible and produced in longer segments whereas the drill stem is much more rigid and manufactured in shorter task specific segments.

Superiority of our product:

Kingwell's integral heavy weight drill pipe are made from AISI 4145H alloy bars that are quenched and tempered full length. A hardness range of 285 to 341 BHM and a minimum impact value of 54 Joules as per ASTM A 370 are maintained one inch bellow the surface at room temperature. To improve resistance to galling, all connections are phosphate-coated with an API thread compond. Each bar used to manufacture kellys has been examined with magnetic partice inspections and ultrsonic inspections.

Production Specification:

1. Product: heavy weight drill pipe

2. Raw material: AISI 4145H

3. Diameter: 2 7/8"-6 5/8"
5. Length: 9300mm/13500mm
7. Delivery time: 30 days after receive the deposit.
8. Process: EAF + LF + VD +(ESR) + Forged + Heat Treatment (optional)
9. Delivery condition: Hot forged, Heat-treatment (Normalized / Annealed / Quenched / tempered), Rough machining.
10.SURFACE FINISHES: Black, Peeled, Turned & Polished
12.Payment: 30% advance by T\T; Balance pay before the shipment against shipping documents or irrevocable LC at sight
13.Technical Data: Chemical Composition, Physical Properties and Mechanical Testing according to the customer's requirement

The following reports provide to the customers to assure our quanlity:

a) Chemical Composition Report

b) Mechanical Properties Report

c) Dimension Test Report

d) Hardness Test Report

e) Heat Treatment Chart Report

f ) UT, MT Test Report

g) Or Others according to clients' demand

Heavy Weight Drill Pipe Specification

Nominal Size	Length ft	Tube			Tool Joint
Nominal Size	Length ft	ID	Wall Thickness	End Upset(B)	Connection Size and Type	Tool Joint OD	Tool Joint ID	Per foot lb	Per Joint (31ft)kg	Make-torque(ft-lb)
2 7/8	31	1 1/2	0.688	2 15/16	NC26(2 3/8 IF)	3 3/8	1 1/2	18.31	261	3,800
3 1/2	31	2 1/16	0.719	3 7/8	NC38(3 1/2 IF)	4 3/4	2 1/16	27.14	390	11,500
3 1/2	31	2 1/4	0.625	3 7/8	NC38(3 1/2 IF)	4 3/4 4 7/8	2 1/4	24.88	360	11,500
4	31	2 9/16	0.719	4 3/16	NC40(4 FH)	5 1/4 4 7/8	2 9/16	31.51	455	14,600
4 1/2	31	2 3/4	0.875	4 11/16	NC46(4 IF)	6 1/4	2 3/4	43.31	621	22,500
5	31	3	1	5 1/8	NC50(4 1/2 IF)	6 5/8	3	52.34	750	30,000
5 1/2	31	3 1/4	1.125	5 11/16	5 1/2 FH	7 1/4	3 1/4	63.87	915	41,200
6 5/8	31	4 1/2	1.063	6 5/16	6 5/8 FH	8	4 1/2	74.62	1070	50,500

Quality control or assurance:
In order to keeping competition and developing, the basic is to improve any possible aspects such as company quality, we place an emphasis on elements includes controls, job management, defined and well managed processes, performance and integrity criteria and identification of records, on competence includes knowledge, skills, experience and qualifications, on soft elements includes personnel integrity, confidence, organizational culture, motivation, team spirit and quality relationship.