API Square kelly Hexagonal kelly for API standard well drilling from China manufacturer

API Square kelly Hexagonal kelly for API standard well drilling

Price:	500.0~5000.0 USD
Payment Terms:	T/T,L/C
Place of Origin:	Shaanxi, China (Mainland)


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Product Detail

Model No.: Top-Square kelly-001

Production Capacity: 10pcs/month

Delivery Date: 15days

Use: Well Drilling

Material: AISI4145H

Processing Type: Forging

Length: 40ft

Means of Transport: Ocean,Land,Air

Packing: Scabboard

Size: 2 1/2"-5 1/4"

Brand: ZZ Top

Standard: API

Package: Shipping scabboard

Working space: 37ft

square kelly and Hexagonal Kellys are the drive section of the whole drill stem 3.2-1/2", 3", 3-1/2", 4-1/4", 5-1/4" 40ft,scabboard package

Standard Square Kelly is made from AISI 4145H alloy steel according to API Spec7-1. We can offer Square Kelly and Hexagonal Kelly. Kelly's ends drive cross-section and joint are all processed and tested in terms of API Spec7-1.

It is formed through hot forging and fully heat-treated by intermediate frequency induction heat treatment or 20m horizontal optical resistance furnace. Threads can be phosphated, copperized or cold worked.

Features:

1. We can manufacture square kelly and hexagonal kelly as per requirements of customers.

2. They are made of AISI 4142H-4145H forged or rolled alloy structural steel. Quenching plus tempering thermal treatment will be conducted over the whole length. Its Brinell hardness can reach 285-341 on the basis of such thermal treatment. Charpy impact energy: 54J. The formulated process can ensure that the misalignment of the hole reaches the standard wall thickness.

Size		Length in	Upper box connection				Lower pin connection		I.D.	Driving section
mm	in		Type(LH)		O.D.		Thread	O.D.		Cross flat	For square kelly	Cross corner for hexa kelly
mm	in		Std	optional	Std	optional	Thread	O.D.		Cross flat	For square kelly	Cross corner for hexa kelly
63.5	2 1/2	12.19	6 5/8REG	4 1/2REG	196.8	146.0	NC26	85.7	31.8	63.5	83.3
76.2	3	12.19	6 5/8REG	4 1/2REG	196.8	146.0	NC31	104.8	44.4	76.2	100.0	85.7
88.9	3 1/2	12.19	6 5/8REG	4 1/2REG	196.8	146.0	NC38	120.6	57.2	88.9	115.1	100.8
108.0	4 1/4	12.9	6 5/8REG	4 1/2REG	196.8	146.0	NC46	158.8	71.4	108.0	141.3	122.2
108.0	4 1/4	12.9	6 5/8REG	4 1/2REG	196.8	146.0	NC50	161.9	71.4	108.0	141.3	122.2
133.4	5 1/4	12.9	6 5/8REG		196.8		5 1/2FH	177.8	82.6	133.3	175.4	151.6
133.4	5 1/4	12.9	6 5/8REG		196.8		NC56	177.8	82.6	133.3	175.4	151.6