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Henan Jianhui Construction Machinery Co.

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 Henan Jianhui Construction Machinery Co.

China

Main Product:steel products

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Kelly Bar
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Product：
Price： Negotiable 
MOQ：  
Total supply：
Delivery time： From the date of payment from the buyer within 3days of delivery
update time： 2016-07-01 05:36  Valid to：Long-term effective
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Product Information

Name: Kelly Bar

Material:AISI  4145H 

Standard: API
Product Detail

Our company act to the user's request to produce Kelly and hexagonal  Kelly, 
the  length is usually about 12.19  meters,  uses  AISI  4145H  alloy structural  steel  manufacturing, 
and  carries  on  the  quenching  and  tempering treatment in the full length scope. The technique
of production and the technical standard are completely in accordance with API, under the room temperature,the surface is removed by inch through heat treatment. Brinell hardness is tested to be possible to achieve reaches 285-341, minimum Charpy impactvalue is 54J.

Kelly Bar

Size
in

Standard length
ft

Inside thread

Outside thread

Inside diameter

Drive section length (ft)

Left screw joint

OD（in）

Right screw joint

O.D（in）

2-1/2

40

6-5/8REG

7-3/4

NC26(2-3/8IF)

3-3/8

1-1/4

37

3

40

6-5/8REG

7-3/4

NC31(2-7/8IF)

4-1/8

1-3/4

37

3-1/2

40

6-5/8REG

7-3/4

NC38(3-1/2IF)

4-3/4

2-1/4

37

4-1/4

40

6-5/8REG

7-3/4

NC46(4IF)

6-1/4

2-13/16

37

5-1/4

40

6-5/8REG

7-3/4

NC50(4-1/2IF)

7

3

37

 
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